bluuebunny/crossref_metadata_2025 huggingface dataset:
Heat Transfer Performance of Titanium Oxide in Ethylene Glycol Based Nanofluids under Transition Flow
Authors: Abdul Hamid Khamisah , Azmi Wan Hamzah , Mamat Rizalman , Usri Nur Ashikin
Published: October 2014

The needs to improve the efficiency of coolants undeniably become one of the concerns in cooling systems technologies nowadays. Nanofluid as coolant is invented and studied where it can provide better option for users due to augmentation in properties. This study provides experimental investigation on Titanium Oxide dispersed in water and ethylene glycol mixture under transition region with Reynolds number range of 2000 < Re <10000. Three volume concentrations are used which are 0.5 %, 1.0 % and 1.5 % for heat transfer experimental investigation under working temperature of 30 °C at constant heat flux of 600 W. The Nusselt number of the nanofluid increase with the increasing of Reynolds number at 1.5 % concentration, slightly higher than based fluid. The finding on the heat transfer coefficient shows enhancement of 2.1 % achieved by Titanium Oxide nanofluid at 1.5 % volume concentration. For 0.5 % and 1.0 % concentration, no enhancement of heat transfer achieved for the fluid flow under transition region at temperature of 30 °C.
Flow Characteristics Study in Kitchen Hood Using Ansys
Authors: bin Pairan Mohamad Rasidi , Asmuin Norzelawati , Muni Z.A. , Kassim M.H.M. , Sies Mohamad Farid
Published: October 2014

Commercial kitchen hood ventilation system is a device used to capture and filtered the plumes from cooking activities in the kitchen area. Nowadays, it is very popular in an industrial sector such as restaurant and hotel to provide hygiene food. The purpose of this study is to identify flow characteristics in the commercial kitchen hood ventilation system and to observe the effect of capture jet technology. The ANSYS 14.5 (FLUENT) software as a tool used to simulate the kitchen hood system with capture jet and without capture jet technology. The model has a dimension 700 mm width, 1600 mm length and 555 mm height. The comparisons are made between Water Wash/Water Mist kitchen hood with capture jet and without capture jet, in order to observe the effect of the capture jet technology through flow characteristics analysis. Three different cases are tested which are case A (1.071 m/s), case B (0.871 m/s) and case C (0.671 m/s) as set at inlet capture jet. Results show that kitchen hood with capture jet technology has improved the flow characteristics in the kitchen hood system which helps to increase the average velocity and control flow in kitchen hood system. Case A with the velocity of 1.071 m/s has the highest average velocity compared to the case B,0.871m/s and case C,0.671m/s. Overall case A provided better flow characteristic based on its characteristic of spreading the fresh air in workspace area. The more spreading of fresh air, it will cover more area in kitchen space thus its helps to provide better thermal condition in the kitchen space. It can be conclude that the inlet capture jet velocity plays an important role in order to help the system efficiently vent out the plumes from kitchen area at the same time to provide better Indoor Environmental Quality (IEQ) in kitchen space.
Experimental Study of Water Heating Efficiency between Aluminium and Copper Absorber Plate in Solar Flat Plate Collector
Authors: Billy Anak Sup , Shamshir Ali Tanti Zanariah , Zainudin Mohd Farid , Rosli Abu Bakar
Published: October 2014

Solar water heating using flat plate collector (FPC) is the widest application that had been used in residential and commercial area. The material for the absorber plate in FPC should have good thermal conductivity to ensure a high value for the heat removal yet able to store heat slightly high during minimum solar radiation period. An experimental of FPC water heating is conducted using copper and aluminium as absorber plate. The plates were exposed under intense sun radiation more than 800w/m2. The analysis is performed on the relationship between the material and the temperature difference of water. The results represented the heat gain and water heating efficiency between aluminium and copper. Aluminium had heat gain of 1100.69W. Copper had the heat gain of 1025.36W. The water heating efficiency calculated for aluminum is 0.97 while copper is 0.93. The paper finally justified that aluminium is better as the absorber plate in this flat plate solar collector compare to copper plate.
Viscosity of Aluminium Oxide (Al2O3) Nanoparticle Dispersed in Ethylene Glycol
Authors: Usri Nur Ashikin , Azmi Wan Hamzah , Mamat Rizalman , Abdul Hamid Khamisah
Published: October 2014

Researchers in applied thermal engineering found that nanofluid have potential as a heat transfer fluid with high level of enhancement in heat transfer process compared to conventional coolants. This study present investigation on viscosity for nanoparticles Aluminium Oxide (Al2O3) dispersed in ethylene glycol prepared using two step method. Viscosity measurement is conducted using Brookfield LVDV-III Viscometer at temperature ranging from 30 °C to 80 °C. Nanofluid is prepared using Al2O3 in 13 nm size at volume concentration ranging from 0.5 % to 2.0 %. The result indicates that viscosity for Al2O3 nanofluid is 75.2 % higher than based fluid at 1.5 % volume concentration and temperature of 30 °C. It was observed that viscosity is inversely proportional with the increment of nanofluid volume concentration and temperature.
Analysis of the Chassis and Components of all Terrain Vehicle (ATV)
Authors: Abdullah Mohd Azman , Tamaldin Noreffendy , Ramli Faiz Redza , Sudin Mohd Nizam , Mohamed Muslim Abdul Mu’in
Published: October 2014

The previously fabricated all terrain vehicle (ATV) chassis and components' designs are further analyzed. The analysis consider the weight distribution ratio during acceleration and braking for the ATV components namely wishbone arm, swing arm and shaft. Preliminary analysis of torsion and static are also performed on the chassis and components. The analysis is performed using commercial computer aided design (CAD) software. The results show good data in term of factor of safety. With further development and research, the ATVs are subjected for improvement. The sustainability of the design and development of the ATVs depends on the material selection, design criteria and components availability.
Investigation on Laser Assisted Micro Ball Milling of Inconel 718
Authors: Rahim Erween Abdul , Warap N.M. , Mohid Zazuli , Ibrahim R.
Published: October 2014

Micro milling of super alloy materials such as nickel based alloys is challenging due to the excellent of its mechanical properties. Therefore, new techniques have been suggested to enhance the machinability of nickel based alloys by pre-heating the workpiece’s surface to reduce its strength. Determining the processing parameters and their effects to the processing characteristics are crucially important. However, not only the micro-milling parameters need to be considered, but the pre-heating parameters are also need to take into consideration as well. These parameters are expected to improve the machinability. In this study, the experiment of LAMM in Inconel 718 was conducted with considering laser power, cutting speed, depth of cut, feed rate and laser-to-cutting tool distance. From the result, the effectiveness of laser assisted and cutting parameter in term of cutting force and tool wear was identified by comparing between conventional and LAMM. Finally, the optimum range of machining parameters can be determined.
Prediction of Surge Motion Response of Floating Structure Using Kalman Smoother Adaptive Filters Based Time-Domain Volterra Model
Authors: Yazid Edwar , Liew M.S. , Parman Setyamartana , Kurian V.J. , Ng C.Y.
Published: October 2014

This work presents an approachto predict the low frequency and wave frequency responses (LFR and WFR) of afloating structure using Kalman smoother adaptive filters based time domain Volterramodel. This method utilized time series of a measured wave height as systeminput and surge motion as system output and used to generate the linear andnonlinear transfer function (TFs). Based on those TFs, predictions of surgemotion in terms of LFR and WFR were carried out in certain frequency ranges ofwave heights. The applicability of the proposed method is then applied in ascaled 1:100 model of a semisubmersible prototype.
FEA-Based Design Study of 12-Slot 14-Pole Outer-Rotor Dual Excitation Flux Switching Machine for Direct Drive Electric Vehicle Applications
Authors: Ahmad Md Zarafi , Sulaiman Erwan , Haron Zainal Alam , Khan Faisal
Published: October 2014

This paper presents an investigation into feasibilities design of 12-Slot 14-Pole outer-rotor dual excitation flux switching machine (ORDEFSM) for direct drive electric vehicle (EV) applications. The stator of the proposed machine consists of iron core made of electromagnetic steels, armature coils, permanent magnet (PM) and field excitation coils (FECs). The FECs in this proposed machine is used as a secondary field mmf source to support the main flux source from PM. Therefore, the proposed machine has extra advantage of variable flux control capability as compared with the conventional flux switching machines (FSMs). The rotor is composed of only stack of iron and hence, it is robust and suitable for high speed operation. The design target for the maximum torque and power density, and the maximum speed are more than 333 Nm, 3.5 kW/kg, and 20,000 r/min, respectively. The results obtained from two-dimensional (2-D) FEA study show that the initial design of the proposed machine has achieved the maximum torque, power density and maximum speed of 244.76 Nm, 3.47 kW/kg, and 20,000 r/min, respectively. Thus, it is expected that the proposed machine potentially to achieve the target performances by implementing optimization process using deterministic optimization method.
Enhancement of Electrical Distribution System Operation Using Intelligent Optimization Techniques Considering Unbalanced Condition
Authors: Ulinuha Agus , Asy’ary Hasyim , Supardi Agus
Published: October 2014

The enhancement of distribution system operation is proposed in this paper by optimally controlling the installed switchable devices. The objective of the control is to simultaneously minimize system losses and improve system voltage profile. This objective may be achieved by optimally dispatching the controllable components (shunt capacitor and Load Tap Changer/LTC) taking into account system unbalanced. A Genetic Algorithm (GA) is developed to determine the load curve partition useful for effective LTC scheduling and switching constraint satisfaction. GA is also assigned to determine the hourly status of shunt capacitor switching and LTC tap position. For power flow analyses under unbalanced conditions, Forward/Backward Propagation Algorithm is developed and employed. The strategy is implemented on the IEEE 34-bus unbalanced distribution system and the resulted improvement is analyzed. The main contribution is inclusion of unbalanced system conditions into optimization problem.
New Design Flexible Link Aerator to Generate Dissolved Oxygen in Water
Authors: Md Zain Badrul Aisham , Kamarrudin Mohamad Harith , Omar Zamri , Wahab Md. Saidin
Published: October 2014

This paper presents the findings of new design of flexible link plate as an aerator to generate dissolved oxygen. An aerator is one of water treatment methods. Using aerator as water treatment can improve dissolved oxygen rate in water. Low dissolved oxygen content can be fatal to certain aquatic species. The application of flexible links manipulators is worldwide trending in technologies nowadays. Thus, application of flexible link as an aerator has been study to improve the dissolved oxygen content in water and reduced cost of manufacturing for an aerator machine. Results from this study shows that the flexible link with proper shape and design is able to generate more dissolved oxygen rate which is good to increase the production rate in aquaculture sector. The new value of the calculated SAE is 2.7 kgO2/kWhr
A New ISO 14649 Translation Module for Open Architecture CNC Systems
Authors: Yusof Yusri , Latif Kamran
Published: October 2014

The Computer Numerical Control (CNC) machines works on the technology that uses minicomputers to generate, parse and execute the sequential control. These machines were introduced in 1970’s, this technology replaces the Numerical Control (NC) with the computers. The controller is the main part of the CNC machine that is composed of two parts: software and hardware. The software part of the controller is commonly known as interpreter that translates the International Standards Organization (ISO) data interface model instructions to the hardware part of the controller. Todays commercial CNC systems are operated by ISO 6983 data interface model that is proved to be a low level language and beside that these CNC systems are found to be closed in nature due to the dependency on vendors specification. Due to these shortcomings the current systems are fail to achieve the targets of future CNC system. In order to overcome these problems and limitations the new data interface model and Open Architecture Control (OAC) technology were introduceds. In this paper a new translator for the interpretation of ISO 14649-21 for OAC CNC systems has been presented. This module interprets the data from STEP-NC code and translates as per required structure of CNC machine. Developed module also enables the on machine modification facilities and provides a platform to generate physical output file in .txt and .xml formats as per user defined structure. The development of these kind of systems will makes CNC system more open, flexible, adoptable, interoperable, and intelligent.
CAIP Application in OMM Operation for Box Primitive Feature: Inpection Code Generation for on Machine Measurement Operation
Authors: Yogi Muldani Hendrawan , Yatna Yuwana M. , Raharno Sri
Published: October 2014

The aims of this research is to build CAIP systems on OMM operation which have an ability to measure workpiece automatically based on drawing data from design division at a machine. The flow of information between each part becomes important as the design of the drawing data from design division to production division or quality control. CAIP system (Computer Aided Inspection Planning) is expected to ensure the flow of drawing information to quality control without any changed even though the amount of data that a lot. CAIP system use early drawing data from the design division. The type of drawing data which is used by each CAD software is STEP drawing data. STEP data consists of products information such as surface geometry, line, point, and direction of the vector surface. The information that can be used to build a CAIP system is a feature. Therefore, a feature reconstruction process is necessary based on the data STEP geometry information. Feature types which is used in this study are a type of box primitive feature. A Probe, a measuring instrument, can be operated in CMM (Coordinate Measurement Machine) and CNC machine. A product measuring on CNC machine during or after machining process called OMM (On Machine Measurement) operation. As a result, measuring can be performed without moving the product from the machine. In this research, 5 Axis CNC machine with Heidenhain DMU150 iTNC530 controller is used.
Melt Flow Behavior of Polymer Matrix Extrusion for Fused Deposition Modeling (FDM)
Authors: Sa'ude Nasuha , Ibrahim Mustaffa , Ibrahim Mohd Halim Irwan
Published: October 2014

This paper presents the melt flow behavior (MFB) of an acrylonitrile butadiene styrene (ABS), High Density Polyethlene (HDPE), Polyproplene (PP) and a combination of ABS-Iron in the extrusion process. In this study, the effect MFB of variety's polymers and ABS mix with 10% Iron material was investigated based on the viscosity, density, thermal conductivity, melting temperature and specific heat material properties. The MFB of FDM system was investigated using Finite-Element Analysis (FEA) by ANSYS CFX 12. Based on the result obtained, it was found that, the material velocity increase when the nozzle diameter is smaller than the entrance diameter. The higher temperature distribution along the MFB of ABS mix with 10% Iron is 43.15 K compared with original ABS, which is 539.15K.
Simple Microcantilever Release Process of Silicon Piezoresistive Microcantilever Sensor Using Wet Etching
Authors: Rahim Rosminazuin A. , Bais Badariah , Burhanuddin Yeop Majlis
Published: October 2014

In this paper, a simple microcantilever release process using anisotropic wet etching is presented. The microcantilever release is conducted at the final stage of the fabrication of piezoresistive microcantilever sensor. Issues related to microcantilever release such as microscopic roughness and macroscopic roughness has been resolved using simple technique. By utilizing silicon oxide (SiO2) as the etch stop for the wet etching process, issues related to microscopic roughness can be eliminated. On the other hand, proper etching procedure with constant stirring of the etchant solution of KOH anisotropic etching significantly reduces the notching effect contributed by the macroscopic roughness. Upon the completion of microcantilever release, suspended microcantilever of 2μm thick is realized with the removal of SiO2 layer using Buffered Oxide Etching (BOE).
Fabrication Techniques for PDMS Dome-Shaped Membrane Using Soft Lithography Process
Authors: Mat Nawi Mohd Norzaidi , Manaf Asrulnizam Abd , Arshad Mohd Rizal , Sidek Othman
Published: October 2014

The dome-shaped membrane is very important part of the micro/nano devices. The dome-shaped with the thickness of 150 μm and a radius of 3.2 mm was fabricated using the soft lithography process. The Polydimethylsiloxane (PDMS) was selected as a material because it deformable and suitable to implement as a membrane. Soft lithography is based on pattern transfer using a mold that is patterning the substrate material. In this paper, two techniques were suggested to fabricate the dome-shaped membrane which are reflow technique and stamping technique. The comparison was made for both techniques using a Scanning Electron Microscope (SEM) and it seems the stamping technique has an advantage where the uniform thickness of the dome-shaped membrane can be achieved. The discussion on the temperature effect of a stamping technique shows that the suitable temperature to harden the PDMS is in temperature room where the bubbles can be eliminated under this temperature.
Design, Manufacturing, and Laboratory Testing of Peristaltic Pipe-Surveillance Robot
Authors: Nugroho Eko Agus , Nurprasetio Pulung , Suharto Djoko , Abidin Zainal
Published: October 2014

The research trend of moving robot mechanism in this decade begins to evolve toward to bio robot mechanism. Bio robot mechanism is objectification of a mechanism that emulates the animal’s gait (bio mimicry). The development such as mechanism has resulted various type of robot that able to move inside the pipeline. The technic of this movement imitates earthworm’s motion, which the traction effect produced from peristaltic movement such as swallowing movement in the digestive organs. Given the way of this movement is similar to peristaltic movement in the digestive organs, so the robot usually called peristaltic robot. Generally, these robots consist of elastic segments that deformed in both longitudinal and transverse direction. Each segment able to deforms alternately to generate wave pattern. These consecutive moving of contract and elongate will produce a movement. This manuscript described design, manufacturing, and laboratory test robot in the pipe tube. The results of early test obtained the value of traction is 142 N and the ability test to climb obtained the maximum tilt angle of pipe about 42° with the slip grade of 37%. This study results peristaltic robot that has capability to crawl inside the pipe tube. It is expected; in the future robot can be used to inspection and maintenance of pipe in oil and gas industry
Development of a Hand-Arm Model to Emulate Tremor Handwriting Behavior
Authors: Mohd Yusop Zulkifli , Zain Mohd Zarhamdy Md , Hussein Mohamed , Mohamad Maziah
Published: October 2014

Patients with hand tremor may find difficulties in performing their routine task especially writing. The worse when the tremor becomes severe. In this paper, a hand-arm model has been developed to study the behavior of tremor while performing handwriting. Regarding the study, the hand of patient oscillates in a perpendicular direction to the forearm rather than other directions due to hand support while the handwriting is performed. A miniature accelerometer patched to the writing device and acceleration data recorded have then been examined by power spectral density (PSD). For hand-arm model setup, the DC motor was used to emulate the hand movement to draw a straight line by connecting the linear screw thread to the writing mechanism. For writing mechanism, there are two parts, holder to hold the pen and Linear Voice Coil Actuator (LVCA) to resemble hand tremor conditions. By injecting tremor data to the LVCA the acceleration is measured once again by attaching a miniature accelerometer to the writer device. The findings show that the model can emulates hand tremor by considering its acceleration and frequency range from PSD based on record actual tremor data as references. The hand-arm model furthers can be a research conduct to design a writing device that can be cancelled or at least suppress the tremor.
Monte Carlo Simulation of Gas Spring in an Energy Storing Prosthetic Knee
Authors: Rosyidi Cucuk Nur , Astuti Rahmaniyah Dwi , Priadythama Ilham
Published: October 2014

Gas Spring is an important component of an energy storing prosthetic knee. The spring stored energy during flexion and released the energy while in the extension. In this research, we discuss a Monte Carlo simulation model of a gas spring in an Energy Storing Prosthetic Knee (ESPK) using Oracle Crystal Ball software. The simulation is used to predict the effects of three important design variables of a gas spring which are cylinder diameter, cylinder length, and displacement to the energy storing performance of the spring. The results of simulation show that there are two design variables which have significant contribution to the variations of energy storing performance: cylinder diameter and displacement. Those design variables account for 99.3% to the total variance of energy storing. Quality improvement must be conducted to lowering the resulted energy storing variance. We proportionally decrease the variance of the design variables to lowering the energy storing variance. The simulation results show a significant quality improvement of about 50% in term of energy storing standard deviation. The results also show that cylinder diameter is more sensitive than the other two design variables in energy storing quality improvement.
The Critical Role of TQM, JIT, and TPM in the Revisiting World Class Manufacturing and Manufacturing Excellence
Authors: Sukarma Lukman
Published: October 2014

Based on a comprehensive survey of existing manufacturing literature, the importance of the integrated production system in achieving manufacturing excellence is elaborated. In doing so, world-class manufacturing and manufacturing excellence are revisited. Four models of WCM and three concepts of ME are reviewed. Each element, which is considered to constitute WCM, is also discussed in detail. The impact of TQM, JIT, and TPM, individually and concurrently on company performance is exhaustively reviewed. Previous models of the integrated models are also compared. The existence of synergy in the application of TQM and JIT leading to additional performance improvement is also demonstrated. But the incorporation of TPM in the integrated production system has never been empirically investigated. Subsequent papers based on this study will present empirical evidence for the effectiveness of the integrated model.
Manufacturing Flexibility and Operational Performance: Empirical Evidence in Manufacturing SMEs
Authors: Purwanto Untung Setiyo , Kamaruddin Shahrul , Mohamad Norizah
Published: October 2014

This study aims to investigate the multidimensional and individual relationship between manufacturing flexibility and operational performance in manufacturing SMEs. A survey methodology was followed to collect data pertaining to the phenomena of manufacturing flexibility and operational performance in the SMEs using a single respondent design. The results provided evidence that manufacturing flexibility is positively and significantly associated with operational performance; suggesting that more flexible manufacturing system is equivalent to the higher operational performance. In addition, the results highlighted the important role of machine flexibility, product flexibility, volume flexibility, routing flexibility, and labor flexibility in improving the operational performance. Each of them contributed not equally, but positively, to all dimensions of operational performance. The findings aim at contributing towards understanding the manufacturing flexibility dimensions that give rise to operational performance. Keywords: manufacturing flexibility, operational performance; manufacturing SMEs
Issues in Total Productive Maintenance (TPM) Implementation: Justification of Employing Case Study Methodology
Authors: Hj. Bakri Adnan , Abdul Rahim Abdul Rahman , Noordin Mohd Yusof , Mohd. Razali Widya Kartini , Mohd Zul-Waqar Mohd.Tohid , Shaiful Anwar Ismail
Published: October 2014

This paper aims to review the common research design employed to investigate the various issues in TPM implementation. Concurrently, it is also aimed to analyze the contribution from Malaysian –based researchers towards increasing the literature of TPM. Attempt was made to discuss the available literature related to TPM published from year 1992 until 2012. The outcomes from this review would serve as useful guideline for the future research in TPM particularly for Malaysian researcher.
Construction and Application of Virtual Roaming System Based on Virtools
Authors: Nie Jie Cong , Zhang Hong Rong , Fei Peng Wei , Tian Ying Zhong
Published: October 2014

This paper introduced a virtual roaming system which can be effectively used in studying ocean scenes based on 3ds max modeling tools and virtools development software. Establishing this system needs the following steps: building geometric model, making texture mapping, light treatment, importing model and designing interactive function. Taking jack-up offshore platform as an example, the system has three roaming modes including manual roaming with character, manual roaming without character and automatic roaming. Users can roam in this platform freely. The collision detection technology and the immersive technology were integrated into the system to improve the reality of it. The system also has a good visual effect and interactive function.
The Method of Tolerance Analysis Base on the Monte Carlo
Authors: Zhang Hong Rong , Zhan Gao Wei , Li Wei , Wei Qing Yue , Li Ming , Tian Ying Zhong
Published: October 2014

The primary goal of concurrent engineering is to minimize the time spend and to reduce quality problems encountered between a product's conception and customer use, thereby minimizing cost and maximizing product quality. Tolerance is an important index of product design and manufacture. Although they are small as compared with part dimensions, tolerances can propagate and accumulate in an assembly affecting the product assimilability. Moreover, tolerance is inevitable because manufacturing exactly equal parts is known to be impossible. This paper presents a brief review of statistical tolerance and clearance analysis for the assembly, and proposes a method of tolerance analysis by a leading commercial computer-aided tolerance (CAT) analysis system, VisVSA. This method can ensure assembly precision requirements, and design optimally tolerance distribution based on Monte Carlo simulation, take a example of brake assembly to detailed introduce the use of this method. The purpose of this article is expected to make the following contributions: (i) to help the designers to evaluate products for assimilability, (ii) to provide a new perspective to tolerance problems, and (iii) to provide a tolerance analysis tool, VisVSA, which can be incorporated into a CAD or solid modeling system.
Green Manufacturing Based on Product Life Cycle
Authors: Fu Chao Jun , Hu Xiao Mei , Yu Tao
Published: October 2014

With a brief introduction of basic concepts and characteristics of green manufacturing, the research status and development trend of green manufacturing is analyzed, and a number of key technologies on green manufacturing are briefly discussed, including green design, green simulation, and green monitoring. The application of green manufacturing in automobiles and machine tools are described to prove the good prospects.
Realization of Online Measurement Technology and its Application in the Intelligent Machining Cell
Authors: Yu Zhi Xiang , Shen Nan Yan , Li Jing , Jia Ya Kai
Published: October 2014

In view of the continuous unmanned machining of revolving workpiece, this paper has integrated the industrial robot with machine vision, mill-turning center and trigger online measurement systems into an intelligent machining cell. It has achieved the automatic loading and unloading material, automatic adjustment of the Machine Coordinate System (MCS) of workblank, automatic compensation of machining errors and workpiece diameter and roundness of the on-machine inspection. In order to ensure the accuracy of continuous unmanned machining of the intelligent machining cell, the main factors that affect the accuracy of online measurement system and the corresponding solutions are analyzed. On this basis, a machining instance is made to verify the validity of the trigger online measurement technique’s application in continuous unmanned machining of the revolving workpiece. The results of this study show that the intelligent machining cell can ensure stable unmanned machining with high precision for several hours.
Decoding of Color Coded Structured Light Using a New Color Feature
Authors: Tang Su Ming , Zhang Xu , Tu Da Wei
Published: October 2014

In this paper, color coded structured light based on pseudo-random sequence is adopted, and a new decoding method is proposed. It includes three steps. First, the stripe centers are extracted through the use of peak detection. Second, the stripe colors are identified using k-means clustering algorithm on a new color feature with high discriminating power. This feature is related to the spectral sensitivity of red, green and blue sensors, the direction of the illumination source, the normal and albedo of the surface, and the spectral power distribution of the incident light, but it is insensitive to the intensity. Finally, a four-step matching method is presented in sequence matching, which is aim to match the subsequences with the length less than the window size. The experimental results show that our proposed decoding method has advantage of high accuracy.
Research on LED Bulb Assembly Line Monitoring System
Authors: Xu Zheng Hao , Hu Xiao Mei , Wang Dong , Zhou Ru Jiang , Yu Tao
Published: October 2014

With the development of the LED bulb assembly line, the demand of the production line monitoring system is getting higher and higher. A real-time LED bulb assembly line monitoring system based on the OPC technology and Microsoft Visual Studio 2010 software is established. The real-time data of the LED bulb assembly line is provided to achieve the function which concludes alarming, scheduling, showing and so on. LED bulb assembly line monitoring system provides the strong safeguard for the smooth operation of production line.
Model of Light Field Imaging and its Application in Refocus and All-Focus
Authors: Zhang Xu , Li Chen
Published: October 2014

In this paper, the light field is modeled from four fundamental factors and the spatial multiplexing of light field is analyzed. The relationship between the light field and the pixel in raw image is described for one typical light field camera. Then, the light field data is adopted in refocus and all-focus imaging. In the aspect of refocus, the hill-climbing algorithm is designed to found the highest value of the image clarity, which is evaluated with the second order gradient square function. On all-focus, the divide and conquer algorithm is adopted to find the optimal path in a gird. The experiment results confirm that the light field model is valid. The proposed refocus method is robust in comparisons with other four clarity measures. Our all-focus method can greatly eliminate the block artifact.
A Consensus Algorithm with Buffer in Second-Order Multi-Agent with Time-Varying Delayed Communication
Authors: Li Yang , Yuan Jin
Published: October 2014

In this paper, we discuss consensus problems for a network of dynamic agents with fixed topologies. A consensus algorithm for multi-agent systems with time-varying delay is presented. With the consideration of the effects of network conditions, such as network-induced delays, packet dropouts, mis-sequence, etc., a communication buffer is introduced for avoiding agents’ communication error, and a method for choosing buffer length is proposed. Using this buffer design, received data is rearranged and transferred in the original order. With the presented consensus algorithm, agents’ consensus is well-performance, and all the agents match the average speed finally. Simulation oriented results verify the effectiveness of the proposed algorithm.
Design Method of a Boost DC-DC Converter Circuit
Authors: Ran Li , Li Tian Cai , Li Gui Qin , Li Hong Bo , Yuan Xiao
Published: October 2014

DC-DC converter is a kind of power conversion equipment. Electricity is the direct power for most mechanical industrial equipment currently. However, because of the diversity of mechanical industrial equipment, electricity should be transformed through power conversion equipment. This paper presents a DC-DC boost converter with PWM control method. The hardware and the structure of the core circuit is designed and the boost principle is interpreted. The detail of the configuration circuit around is described as well.
Study of Advanced Process Control Technology and its Application for Ammonia-Based Flue Gas Desulfurization Process
Authors: He Ren Chu , Gu Xiao Jing
Published: October 2014

As a new environmental-protection technology, large-scale ammonia-based Flue Gas Desulfurization (FGD) requires high control and process technology. The process of FGD almost includes all the operation units in chemical industry. In order to make the equipment adapt to some complex changes of original flue gas and operate on better work conditions like low energy consumption, optimum liquid/gas ratio, minimum water consumption, completely nitrites oxidization, the multivariable predictive control and soft sensor based on mechanism model are studied in this paper. And the results show that these problems of variables correlation, large delay and variables coupling of FGD are resolved. In addition, ammonia consumption is lower, by-products quality is improved, Besides, the process operation is more smooth and safe, so the equipment can run effectively and economically after carrying on advanced process control.
Bidirectional Data Exchange between C++ and Prolog for Robot Task Planning in the Hybrid Control Architecture
Authors: Wu Gui Xin , Xu Shuo , Tu Da Wei
Published: October 2014

To realize hierarchical robot task planning in the hybrid deliberative/reactive control architecture, C++ and Prolog are integrated to implement qualitative reasoning and quantitative calculation. With respect to a typical case in service robot operation studies, two experiments are conducted to examine “Prolog loading C++ programs” and “C++ loading Prolog programs”. They get the results of unidirectional data transfer and bidirectional data transfer between the two kinds of software, respectively. The research method is extendable to different engineering applications and different Prolog development environments.
High-Speed Motorized Spindle Decoupling Optimization Control
Authors: Cai Chi Lan , He Ya Fei , Li Ning , Lin Qing Zhi
Published: October 2014

High-speed motorized spindle is the core component of the CNC machines. Its dynamic performance directly affects the accuracy of the geometry, and be the root cause of vibration, noise and temperature increase, etc. Its motor control system has the characteristics of nonlinear and strong coupling, which is one of the key R&D items of the spindle design. Based on granular computing, this paper selects the appropriate granularity to analyze the coupling between the motor control parameters and system performance, and propose a zoning decoupling and optimization method to optimize the overall system performance, which has practical application value.
Simulation and Optimization Research of the Actuator for Soft-Close Automatic Car Doors
Authors: Fang Yu Ru , Kan Shu Lin , Wang Xi Xiong
Published: October 2014

Based on the current design of actuator for soft-close automatic car doors, function and composition of the mechanical assembly and the electronic control module of the actuator are elaborated firstly. Then the push travel section of cam profile is optimized from previous circular arcs to a spline curve to reduce impact and fatigue wear between the switch and the cam in the mechanical assembly through multi-body dynamics simulation with the Adams solving tool in NX7.5. Besides, an improvement of the MOSFET bridge drive circuit and corresponding program design through dead-time control method with half-bridge chopper are applied to solve the heating problem in the electronic control module, in the light of equivalent electronic circuit simulation in Multisim. The results demonstrate that the optimization works well, and valuable conclusions can be drawn from system simulation during the prototype stage of the actuator product is practicable.
Researched on the Technology of Machining Simulation
Authors: Li Bao Rui , Zhu Wen Hua , Eynard Benoit , Bricogne Matthieu
Published: October 2014

The machine tool machining is a major processing method in manufacturing industry. Achieved the simulation for the machining process will greatly improved the processing efficiency, perfected the processing quality and reduced the production costs. It has important significance for the development of modern manufacturing industry. This paper studied the constitute of the processing verification and simulation systems. And focuses on the principle of the machine tool system driven by the common simulation engine and driven by the virtual NC controller. Finally, the simulation system was built and use the blade machining as an example to the simulation test and verify.
Optimizing Design of Numerical-Controlled Glass Cutter
Authors: Feng Zhu Lei , Li Ming , Ding Hai Dong
Published: October 2014

The field of glass deep processing has good prospect. However, the key technology of numerical-controlled glass cutter is primarily commanded by overseas large-scale companies. To meet the needs of the users and to develop the international competitiveness of the company, this paper makes the optimization design for numerical-controlled glass cutter. On the basis of analyzing the effects and the structures of main parts of the glass-cutter, the cutter machine is optimized in three aspects. The torsional vibration of transmission system is optimized by establishing the lumped mass-elasticity-damp discrete torsional vibration dynamic model with the multi-DOF. Applying the genetic algorithm and the finite element analysis software, this paper optimizes the beam weight under the condition of the approving rigidity of static and dynamic state. Finally design the basic structure of CNC glass cutter’s control system. This paper prefers the method of CNC glass cutter’s optimization and proves that the optimization suggestions are feasible and effective through tests.
The Design of a Campus Access Control System Based on ARM
Authors: Fei Peng Wei , Zhan Gao Wei , Nie Jie Cong , Tian Ying Zhong
Published: October 2014

Nowadays, with the in-depth development of networking, informatization and integration the access control system has become more and more popular and important in campus. Most access control systems were developed based on MCU with the characteristics of fixed functions and hardly to extend. A kind of campus intelligent access control system based on ARM is introduced in this paper. The overall structure of the system is as follow: the communication way between host computer and the access controller is TCP/IP protocol; using CAN-BUS for communication between access controller and RFID reader. In the design process, top-down design ideas has been adopted. From the overall structure to the local design, from the host computer to access controller and RFID reader, by means of functional analysis, process planning, hardware design and software programming, finally developed a campus intelligent access control system with excellent exhibitions on powerful, stability and scalability.
Study on the Workshop Production Environment Remote Monitoring System
Authors: Liu Chao , Liu Li Lan , Yuan Zi Long , Liu Xue Wei
Published: October 2014

In view of the problem of complex cabling and the difficulty of real time monitoring of the workshop, the wireless network technology, the LabVIEW software and Internet technology are used in this paper to realize the hardware system network, the real time monitoring of temperature and humidity, dust, noise in the workshop, and the web publishing and remote monitoring of the system respectively. In this way, the informatization management level of workshop has been improved, and thus the workshop intelligent control ability can be improved.
Partial Rescheduling Based on Branch and Bound for Single-Machine Problem
Authors: Yu Ying Ying , Wang Bing
Published: October 2014

This paper addresses a single-machine large-scale rescheduling problems with efficiency and stability subject to machine breakdown. Partial rescheduling (PR) strategy is used to cope with the computational complexity. Two kinds of objective functions of PR sub-problem, where the global dual objectives are reflected to an extent, are designed respectively for the procedural PR horizon and the terminal PR horizon. The PR problem is solved by a branch and bound algorithm. Lower bound and upper bound procedures as well as dominance rules are developed for the branch and bound algorithm. An extensive experimentation was conducted. The computational results show that the branch and bound can solve PR sub-problems with certain scales and the partial rescheduling procedure developed can greatly improve the stability of schedule with little sacrifice in efficiency and provide a reasonable trade-off between solution quality and computational cost.
Two-Level Robust Optimization for Uncertain Job Shop Scheduling Problem
Authors: Wang Bing , Li Xiao Yan , Meng He Xia
Published: October 2014

This paper proposes a two-level robust optimization model in the context of job shop scheduling problem. The job shop scheduling problem optimizes the makespan under uncertain processing times, which are described by a set of scenarios. In the first-level optimization, a traditional stochastic optimization model is conducted to obtain the optimal expected performance as a standard performance, on which a concept of bad-scenario set is defined. In the second-level optimization, a robustness measure is given based on bad-scenario set. The objective function for the second robust optimization model is to combine expected performance and robustness measure. Finally, an extensive experiment was conducted to investigate the advantages of the proposed robust optimization model. The computational results show that the two-level model can achieve a better compromise between average performance and robustness than the existing robust optimization models.
Technology Utilization as Competitive Advantage - A Sociotechnical Approach to High Performance Work Systems
Authors: Knutstad Gaute , Ravn Johan E.
Published: October 2014

This conceptual paper underlines the necessity of research into sociotechnical systems in modern high-tech industries. Production of sophisticated products is foreseen to build the competitiveness of the advanced economies’ industrial sectors in the future. Increasingly, competitiveness in such industries depends on a complex interaction between social factors such as knowledge sharing, knowledge generation, learning and innovation, and technical factors such as robotization, automation and information systems. However, up to now, improvements and developments in these industries have tended to be biased towards the technology side. To balance this and to take into account the necessity of more effective human – machine interaction, and the need of knowledge sharing, learning and innovation, it proposes a mode for how to challenge highly automated, high-tech and knowledge based high-cost manufacturing, where: 1) State-of-the-art technology is necessary, but not sufficient; 2) state-of-the-art technology requires high level of competence and advanced organization, and 3) a joint organizational and technical perspective is needed in order to develop sustainable competitiveness through high performance work systems in high-tech manufacturing. Operational excellence in such niches requires companies that, through sophisticated practices of organization and management, are able to exploit systems of advanced manufacturing technology.
Reconfigurable Modular Design of Glass Stacker
Authors: Ding Hai Dong , Li Ming , Feng Zhu Lei
Published: October 2014

With the vigorous development of the market of building glass, flat glass products’ deep processing is more and more diversified, enterprises become highly request for the production lines, especially the glass piling machinery. As one of the important equipment in glass production line, glass piling machinery has a vital role to ensure production efficiency, safety and quality. This article is based on modular design technology, combining the theory of reconfigurable, completed the modular design, the series planning and interface design, realized the reconfigurable modular function of the glass stacker. Make glass stacker can through the selection and combination of modules, constitute the different products quickly, to meet the different needs of the market.
Risk Navigation in One-of-a-Kind Production
Authors: Rolstadås Asbjørn
Published: October 2014

One-of-kind production is synonymous with project and thus can use management approaches from project management. The relationship between operations management and project management is briefly discussed and a project execution model with project phases and decision gates is introduced. Decisions are essential in any project as they introduce uncertainty and at the same time is the main tool for controlling the project. Three types of decisions are discussed: select, authorization and plan decisions. Uncertainty leads to risks and opportunities. Three types of risks can be distinguished: operational, strategic and contextual risks. The intersection between these creates a risk triangle within which one can navigate. A framework for project risk navigation contains three components: a governance system, a decision process, and strategic planning.
Disposition Strategies within Value-Optimizing Returns Management
Authors: Wang Yi , Ringstrom A. M.
Published: October 2014

This paper evaluates the advantages and disadvantages of selling returned goods to secondary markets or destroying them, focusing on value recovery, financial impact, resource requirements and branding implications. It then compares the solutions highlighting branding differences, degree of product control, financial impact and resource commitment. It concludes by recommending a multi-solution system to maximise value recovery.