bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental and Numerical Study - Effects of Crush Initiators under Quasi-Static Axial Load of Thin Wall Square Tube
Authors: Istiyanto Jos , Hakiman Suci , Sumarsono D.A. , Kiswanto G. , Baskoro Ario S. , Supriadi S.
Published: October 2014

Crush initiators are used to improve the energy absorption and reduce the peak crush load at the time of the initial accident. This study aims to determine the effect of crush initiators on thin-walled square tube of local product which is applied on the front rail Electric Cars University of Indonesia under the quasi static axial loads. Crush initiator was designed in the form of two parallel holes with a diameter of 6.5 mm at a distance of 20 mm from the surface of the tube on each side. Analysis was done by comparing the experimental result with the result of numerical analysis by using finite element method of ANSYS. The result showed the significant effect from the crush initiators on decreasing the peak crush load and increasing the energy absorption and showed a similar pattern between the experimental and numerical computation result.
Drying of Sponge Media Using Swirling Fluidized Bed Dryer
Authors: Zakaria Jamal Hazri , Md Zaid Mohd Hadi Hashemi , Mohideen Batcha Mohd Faizal , Asmuin Norzelawati
Published: October 2014

Surface preparation is a process of treating a surface to increase its attraction to coatings and imperative to ensure satisfactory coating can be attained. Conventional techniques of surface preparation usually involve blasting of abrasive material on the surface which usually associated with airborne debris and hazardous contaminant from the process. A relatively new technology in surface preparation is the usage of sponge media as an alternative to the conventional abrasive material. Being soft and elastic, sponge media can reduce airborne emission from surface preparation significantly while being able to be recycled. Unfortunately, the recovery of used sponge media becomes difficult during rainy conditions in which the sponge absorbs water and quickly becomes saturated. Therefore, this paper presents the drying characteristics of sponge media using a swirling fluidized bed dryer (SFBD) for rapid drying to overcome the long, inefficient sun drying as per current practice. Several laboratory scale experiments were carried out to dry water laden of the sponge media in the SFBD. Three bed loadings of 1.7, 2.0 and 2.3 kg were used at drying temperatures of 80°C, 90°C and 100°C. The experimental works revealed the excellent potential of the SFBD in drying the sponge media rapidly. The behaviour of moisture ratio and drying rate against time were discussed. Keywords: Sponge media drying, Swirling Fluidized Bed Dryer (SFBD), Moisture ratio, Drying rate
Thermal Conductivity Enhancement of Aluminium Oxide Nanofluid in Ethylene Glycol
Authors: Abdul Hamid Khamisah , Azmi Wan Hamzah , Mamat Rizalman , Usri Nur Ashikin
Published: October 2014

Nanofluids are the new coolant fluid that has been widely investigates due to its ability to improved heat transfer better than conventional heat transfer fluid. The need to study the nanofluid properties has been increased to provide better understanding on nanofluid thermal properties and behavior. This study presents the measurement analysis on thermal conductivity enhancement of Al2O3 nanoparticles dispersed in ethylene glycol. The nanofluids are prepared using two step method for volume concentration range from 1.0 % to 4.0 %. The thermal conductivity measurement of the nanofluid is performed by KD2 Pro Thermal Properties Analyzer at working temperature range from 30 °C to 80 °C. The maximum enhancement in thermal conductivity is 21.1 % at volume concentration of 2.0 % and temperature of 70 °C. The results show that the thermal conductivity increases with the increase of nanofluid concentration and temperature. Also, the nanofluid shows enhancement in thermal conductivity compare to the base fluid.
A New Approach to Reduce the Thermal Modeling Experiment Time by Estimating the Settling Time
Authors: Yahaya Nor Zaiazmin , Ismail K. Azwan , Abdul Manan M.S. , Awang Atikah Haji
Published: October 2014

In order to develop a thermal model for a generator or a motor, several experiments need to be conducted. One of the challenges in conducting the experiment is that it consumes a lot of time to reach its steady state condition. This is because a generator or a motor has a lot of moving parts and a large amount of surface area causes a very slow rise in temperature. This paper proposes a new method to reduce the experimental time by estimating the settling time using a modeling technique used in the control system engineering. From the data presented, the experimental time can be reduced approximately 55 percent. Furthermore, it is also found that the average steady state temperature for the wire winding is 47.55°C and the predicted temperature from the formulated equation is 47.09°C with error less than 1 percent.
Establishing Correlation between Leaf Spring Specifications and Camber Drop
Authors: Ahmad Majdi Abdul Rani , Rozaidi M.A. Mohamad , Dass Sarat Chandra , Pedapati Srinivasa Rao
Published: October 2014

Manufacturing of leaf spring for automotive application to support heavy load vehicles such lorry and truck is a challenging process. This is due to the difficulty in fabricating the leaf spring exactly as per designed. The difference between the desired leaf spring shape and the actual fabricated shape is known as camber drop. The aim of this study is to establish the correlation between leaf spring specifications, camber drop and its processing parameters. The formulated equation can thus be used to predict the extent of camber drop and required action can be taken to reduce camber drop. This work was conducted by gathering data of variables suspected to influence camber drop, namely quenching camber, half-length of the spring, spring rate and end thickness of the spring. Regression analysis was conducted and the correlation between leaf spring’s specifications and camber drop is given. A mathematical model able to predict the extent of camber drop is formulated.
Influence of Depth of Cut on Contact Phenomenon in Micromachining
Authors: Saedon J.B. , Norrdin Noor Aniza , Yahaya Mohd Azman , Mohamad Nor Nor Hafiez , Md Salih Mohd Zulhafiz
Published: October 2014

Chip formation is a dynamic process that is often nonlinear in nature. A chip may not form when the depth of cut is less than a minimum chip thickness. It is aimed to investigate influence of depth of cut on contact phenomenon in micromachining. This paper presents a series of simulation works by finite element method on depth of cut effect on micromachining. A model is developed with consideration of the Johnson-Cook material and Arbitrary Lagrangian–Eulerian (ALE) method. In this work investigate the effect of depth of cut on the contact phenomenon during micromachining AISI D2. The results of the analysis are showed in aspects of interrelationship between material separation and frictional shear contact, distribution of stick-slide regions and contact stress on the work piece and cutting tool. It is found that the sticking and sliding was occurred on three zones as primary, secondary and tertiary shear zone. The contact phenomena can be showed around the tool edge radius where material flows around it and piles in front of the cutting tool through material separation. The investigation of contact phenomena inclusive under three criteria such as a/r < 1, a/r > 1 and a/r = 1 on positive rake angle.
A Platform for Digital Reproduction Sound of Traditional Musical Instrument Kompang
Authors: Siswanto Waluyo Adi , Che Wahab Wan Mohamed Akil , Yahya Musli Nizam Bin , Ismail Al Emran , Nawi Ismail
Published: October 2014

This work proposes a system for the digital reproduction sound of kompang. The kompang sounds are represented by bung and pak produced by palm beating to the membrane. The sounds are recorded in an acoustical sound recording system. In this proposed system, the recorded sounds are then analyzed in a frequency analyzer SpectraPLUS. This frequency contents data can be used as the reference to check the reproduced digital sound. The recorded wave data is converted to MIDI format before being manipulated in Ableton synthesizer system to create modern keyboard notes but representing kompang sound. For the validation purpose, a subjective approach as an additional to the objective comparison with frequency contents is also proposed.
Modeling of Heat Exchanger by Using Bio-Inspired Algorithm
Authors: Daud N. Atiqah , Md Salleh Salihatun
Published: October 2014

Modelling of heat exchanger helps to define the error that occurs during the operation. Hence by optimizing it using genetic algorithm and particle swarm optimization, the error that occurred could be minimized and compared between both algorithms. The primary objective of this study was to obtain structural model using ARMAX equation. In this study, data from heat exchanger experiment was used to determine the parameter of ARMAX equation. Using genetic algorithm and particle swarm optimization, ARMAX parameters are optimized. Hence, the transfer function represents the plant for modelling. Validation test used were autocorrelation and cross-correlation to validate between normalised data input and error. Based on the result obtained, for GA, the input parameters are-0.000214, -0.000728, -0.0020, and-0.000804 while the output parameters are-1.0000, -0.1783, -0.1473 and 0.3248. For PSO, the input parameters are 0.0104, -0.0122, -0.0067 and 0.0118 while the output parameters are-0.4274, -0.1256, -0.1865 and-0.2614. From validation test, GA produced smoother and effective result compared to PSO with less noise exists.
Implementation of PLC System in Fish Feeding Rate Determination
Authors: Md Salleh Salihatun , Md Zain Badrul Aisham , Yahya Mohd Shahir , Wahab Md. Saidin , Ghazali C.H.I. Che , Yusof M. Sharel
Published: October 2014

This study is about the development of a control system design using Programmable Logic Controller (PLC) system which gives food to the fish with a blower method. To perform fish feeding system automatically the control system will include PLC system, touch screen, emergency button, terminal block, speed controller, relay NY-2N, and power supply 240V. The component of the input systems are autonics sensor includes counter clockwise sensor, clockwise sensor and distance pulse sensor. While the components of the output systems are forward/reverse motor and blower. The overall system and its components are tested with the reliability test to check the components’ performance. The result of reliability system shows that all LED components emits light signal when both direct connection circuit and PLC system is interfaced. The feeding time need to be increased as the fish weight increased. Keywords: [PLC system, feeding rate, fish pond ]
Periodic Cubic Spline on Motion of Five-Link Human Bipedal Model Using Nonlinear Predictive Control
Authors: Onn Nurfarahin , Hussein Mohamed , Tang Collin Howe Hing , Mohamad Maziah , Zain Mohd Zarhamdy Md , Lai Wei Ying
Published: October 2014

This paper studies about the performance of periodic cubic spline applied on the nonlinear predictive control (NPC) based on receding-horizon cost function optimization. The five-link human bipedal model includes a torso and two legs which has a thigh and a shank in every leg. The periodic cubic spline is used to achieve smooth walking trajectories of every joint in the bipedal model in the sagittal plane. The results show that the tracking error after using periodic cubic spline is smaller than the tracking error before using periodic cubic spline.
Development of Computer Aided Inspection Planning (CAIP) Application in on Machine Measurement Operation (OMM) Operations for Box Primitive Features: Generating Inspection Codes
Authors: Yogi Muldani Hendrawan , Yatna Yuwana M. , Raharno Sri
Published: October 2014

The aims of this research is to develop a Computer Aided Inspection Planning (CAIP) system in OMM operations which has an ability to measure workpieces automatically at a machine tools based on drawing data issued by the design division. 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. The Feature types used in this research is 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.
Experimental Study on the Effect of Pinch Parameters and Fluid Viscosity to Flow in Closed Loop Impedance Pump
Authors: Mahat M. Mazwan , Izzati R.N. , Shahrul Azhar Ilya Izyan , Tharazi Izdihar
Published: October 2014

This paper aims to analyse the performance of impedance pump that uses energy mismatch to drive fluid flow. The experimental setup mainly focus to establish the relationship between the fluids flow rates in elastic tube section connected between two ends of solid tube and pinch mechanism location as well as fluid viscosity. Measurement of fluid flow rate or representation of its velocities resulting from the pumping mechanism is measured using two different supply voltage and constant pincher width. These measured parameters resulting from the pinch mechanism of the elastic tube section were varied at different pinch location along its x-axis direction; divided into two main cases namely (1) 2 V and (2) 3 V at 40 mm to 140 mm pinch location. From the voltage variation, it is found that the maximum flow rate given by voltage 3.0 V at pinch location 40 mm while for the effect of viscosity, the highest flow rate is 93 ml/min. The profiles obtained revealed the characteristic of valve less pump to be the new model of new Ventricular Assist Device use in cardiac patient as well as further explanation about the factor that influence the characteristic of elastic tube.
Synthesis and Characterization of Zinc Doped Hydroxyapatite for Bone Substitute Applications
Authors: Abdul Wahid Mohamad Firdaus , Mardziah C.M. , Hyie Koay Mei , Nik Roselina N.R.
Published: October 2014

Hydroxyapatite was prepared by using precipitation method. The substitution of zinc ions in hydroxyapatite structure was studied by several characterization techniques. Several concentration of zinc ions were substituted into hydroxyapatite. Characterization technique such as X-ray diffraction method was used to study the phase changes and the lattice parameters with the addition of zinc. Field emission scanning electron microscopy was used to examine the influence of zinc on the crystal size and the morphology of the as-synthesized powders. Based on X-ray diffraction result, the addition of zinc affects the lattice parameters and phase. The result showed that zinc ions were substituted in the structure. As zinc substitution increased, the lattice parameters a and c decreased. The crystal shape of hydroxyapatite without zinc ions was regular shapes while hydroxyapatite with zinc ions was irregular and also tends to agglomerates with single particle was calculated about 28 - 34 nm .
Research of Grinding Methods for Large Lead Ball Nut
Authors: Qian Xiang , Li Jing , Shen Nan Yan , Shao Jing Feng , Lin Wei Jie
Published: October 2014

To solve the interference problem during the grinding process of large lead ball nut, a new forming grinding system based on flexible shaft has been designed in this paper. The paper analyzed and compared with three grinding methods including reducing setting angle, deflecting setting angle and adopting flexible shaft grinding system to figure out their influence on possibility, precision and efficiency of grinding. The result shows that the flexible shaft grinding system designed can avoid interference effectively. Additionally, it can also meet the requirement of efficiency and precision when grinding the large lead ball nut.
A Cost Model for Recycling Process of End of Life Vehicle
Authors: Xu Hong Long , Zhou Zi Qiang , Wu Zhao Ren
Published: October 2014

Recycling of End of Life Vehicle (ELV) is a coming social issue in China. For the purpose of establishing recycling enterprise rationally, all the aspect should be taken into account, especially the cost of recycling. In this paper a cost model of recycling process is presented and analyzed to the disassembly and recycling process. The configuration of equipment with different mode of disassembly is also discussed.
A Review of Data Mining Technologies for Condition Based Monitoring for Machine Tools
Authors: Wang Ke Sheng , Sharma Vishal S. , Yu Quan
Published: October 2014

Looking at the high rates of production and the steep competition in the world market, it becomes quite essential that the fault control is done in a very efficient way. This article presents a summary on the maintenance, the monitoring techniques, and the diagnosis methods for the condition based maintenance of machine tools. The paper initially gives a brief introduction on the condition based maintenance of machine tools. In the next part, the various methods for the monitoring are discussed followed by the models for data mining. The paper concludes that most of the techniques have their own advantages and drawbacks, so a careful selection of the techniques is needed to form a proper monitoring system.
Research of Visual Inspection and Sorting System of Cigarette Carton Brand
Authors: Zhou Chuan Hong , Ren Wei , Gao Yu Feng
Published: October 2014

To reduce error inspection rate of the brand inspection in enterprise logistics, this paper puts forward a inspection method which depends on template matching algorithm based on machine vision.This method identifies cigarette carton brand by image processing, first template matching, accurate template matching of real-time carton bar code, then sends message to industrial personal computer to does sorting operation. Practice has proved that the system is stable, fast, accurate to meet the site requirement.
Numerical Analysis of an External Flow-Field around a Formula SAE Car Body Based on FLUENT
Authors: Cheng Xiao Han , Luo Shan Ming , Chang Xue Feng , Xie Dan
Published: October 2014

This paper proposed a method to analysis an external flow-field around a Formula SAE car. Firstly, the body of Formula SAE car was designed conforming to the FSAE rules using CATIA. Then, the model of the external flow-field around the vehicle was established using computational fluid dynamic technology. A comparative analysis of the aerodynamic characteristics was made for the body between the conditions of being without the wing package and being with the wing package under different attack angle to get the static pressure graph, the lift force and the drag force then worked out the drag coefficient and confirmed which is the most suitable angle for the wings. The results showed that: the static pressure of the front body, the front part of the tires and the driver’s chest and head is the highest; the body has good streamline since its drag coefficient is 0.385; the rear wings can supply 65% downforce, when the attack angle of the rear wing is set to 8°. Finally, the real mold was fabricated according to the above 3D model and the analysis results. The method presented in this paper can provide theoretical basis and technical parameter for the aerodynamic formation designing and amelioration of the Formula SAE cars. Also it has guiding significance for the design and aerodynamic analysis of the Ordinary Passenger car.
The Monitoring System for Stability of CNC Machining Based on cDAQ and LabVIEW
Authors: Meng Man , Zhang Wen Jun , Wang Peng Chong , Niedenzu Denis , Tian Ying Zhong
Published: October 2014

In recent years, researching the stability of the CNC machining process is a hotpot in CNC industry. Based on cDAQ and labVIEW, online monitoring system is presented, meanwhile, both software structure and hardware structure are introduced in detail. Researches show that vibration and pressure are the main factors for the quality of the flatness. By studying the relative vibration between the spindle and the platform in the Z axis direction, as well as the shifty pressure that tool works on the flatness of the workpiece, four experiments are designed in this paper under different technological conditions including free moving, Axial Depth of cut, speed and feed speed, which verify the reliability of the online monitoring system.
Fault Diagnosis of Bearing Based on Conjugate Gradient BP Algorithm
Authors: Lu Li Xin , Zhao Yan , Li Gui Qin , Li Zheng , Yuan Xiao , Li Hong Bo
Published: October 2014

Largely used in industry field, bearing is one of the most vulnerable components in an equipment. Owing to the complicated and nonlinear relationship between features and corresponding specific fault, it is less efficient to diagnosis the faults in tradition ways ,especially to deal with the fault of a mega machine. BP neural network whose strength is to solve the nonlinear problems makes it more precise and efficient to determine the fault of bearing. Conjugate gradient algorithm is proposed as the training method of the BP neural network. Compared with standard training method, conjugate gradient has the advantage of training speed and generalization ability, which is confirmed by the results of neural network model whose inputs are common bearing fault samples.
Smartphone Remote Control System for Standby Generator Set Based on Android
Authors: Zhou Chuan Hong , Xuan Zhao
Published: October 2014

Due to adopt manual startup standby generator set in society,operating personnel can't immediately start the standby generator set after the power failure occurs.Aimed at this problem,a scheme of the standby generator set smartphone remote control system based on Android was proposed.Firstly,the hardware platform of system was introduced and overall remote control system was designed.Based on this, the application software was developed by Android SDK,which was consisted of four modules,The realization of functionality and interface of every module were analyzed in detail.The research results indicate that the system is easy operation, friendly interface,and has good stability and availability.
Design and Realization of Intelligent Electrical Resistivity Measurement System
Authors: Zhang Jin Feng , Wu Xiao Chun , Ding Hai Long
Published: October 2014

Based on graphic program language LabVIEW and Micro Control Unit MSP430F169, an intelligent electrical resistivity measurement system with four-point probe and four-line was studied in this paper. Structured Query Language of LabVIEW was applied for calibration and management in database. Hardware feedback and software compensation technologies were designed in high-precision current source, whose range was automatic selected in auto-mode. Between the computer program and hardware control unit controlled by MCU, a RS-232 data communication protocol was applied in order to improve the ability of human-machine interaction and automation degree. Experiment results in semiconductor and metal material science indicated that the measurement system measured accurately and automotive, the information database of the tested material was the foundation of data analyzing and data mining.
Research of On-Machine Laser Measurement Method for Cutting Tools
Authors: Chi Xian Liang , Zhang Xi , Jiang Fan
Published: October 2014

To successfully achieve high precision machining, process technology and on-machine measurement is essential. On-machine laser measurement will be widely used in industry because it is non-contacting, real-time and high-precision. However, proper method for tool shape monitoring and dimensional control are important to research. In this study, the measurement system consists of a laser light source and a quad photodiode array. And two different edge detection algorithms are introduced to determine the position of the tool edge accurately in order to measure the diameter of cutting tool and errors caused by tool runout. The experimental results verify the validity of measuring tool diameter and runout error.
Laser Stereo Vision-Based Position and Attitude Detection of Non-Cooperative Target for Space Application
Authors: Tu Da Wei , Zhang Xu , Fei Kai , Zhang Xi
Published: October 2014

Vision measurement for non-cooperative targets in space is an essential technique in space counterwork, fragment disposal, satellite on-orbit service, spacecraft rendezvous, because the position and attitude of the target aircraft or the object should be detected first of all in the process. The 2D passive camera loses the depth information and can not measure the position and attitude of non-cooperative target. Several kinds of range imaging methods are alternatives. The traditional triangulation method can provide very high precision range measurement at close range but the nature of the triangulation geometry means that the uncertainty grows when the range increases. Laser radar (LIDAR) based on TOF (time of flight) or phase difference principle is suitable for middle and long range, but it can not fit for short range. A novel structure system is put forward, in which a so-called synchronous scanning triangulation method is adopted combining a LIDAR system. The synchronous scanning triangulation system plays a role at the range from 0.5m to 10m for object’s attitude, and the LIDAR system plays a role at the range from 10m to 200m for object’s position (direction and range).They are merged into one path, and do not influence each other because of using two different wavelengths respectively. This mechanism makes the system more compact and less weight. The system performances, such as the measurement range and precision, are analyzed according to the system parameters. The principle prototype is designed and established, and the experimental results confirm that its performance is promising and can satisfy the requirement for space application.
A Target Recognition Algorithm Based on the Object’s Color and Size Features
Authors: Guo Shuai , Li Hua Wei , Xie Chun Sheng , Li Wen Yi
Published: October 2014

The problem being faced is that the current target recognition method based on color feature can’t filter objects that have the same color as the target object. In this paper, a new target recognition algorithm based on the object’s color and size is introduced. To achieve the goal of object recognition, the HSV color space conversion, the threshold method and seed growth method are used together to implement image segmentation. The size feature has been used to filter the image regions that have been extracted by image segmentation. The method is proved by experimentation to be effective in regular shape object recognition.
Research on Three-Dimensional Reconstruction Technology Based on the Data of Hybrid Measurement
Authors: Liu Wei , Ju Lu Yue , Lin Cheng Hui
Published: October 2014

Hybrid measurement method is proposed to solve the problem that the partial or whole three-dimensional reconstruction accuracy of aviation engine parts is high. The point clouds of the aviation engine part are captured first using contact and non-contact measuring method. Feature-based parametric modeling strategy is adopted to reconstruct the aviation engine part so that it is easy to be modified in the future. Then, the point cloud data obtained by contact measurement and the reconstructed model are registrated to the same coordinate system to detect the deviation. The point cloud registration method is based upon the feature-based registration method and standard Iterative Closest Point (ICP) algorithm, which help to improve the accuracy of registration. According to the result of deviation, the three-dimensional model can be modified. The accuracy of the modified model is controlled within 0.02mm, satisfying the requirement of aviation engine parts. Three-dimensional reconstruction results have verified the feasibility of the method.
Method and Realization of Central Air-Conditioning Control Strategy Communication Based on STM32
Authors: Han Tao , Lai Xue Feng , Yan Liang Wen , Zhang Zai Feng
Published: October 2014

Abstract. With the SIEMENS S7-200 PLC and HMI based on KingView being the master, a slave station of STM32F103C8T6 microcontroller is developed based on MODBUS protocol. The establishment and program designing of communication protocol using RS485/RS232 between master and slave is introduced firstly. Then the process of debugging between the microcontroller and PC, the microcontroller and the PLC is elaborated. Thus serial communication is implemented based on MODBUS protocol in RTU mode. The system will be applied in central air-conditioning control system. A good control effect will be obtained as the controlling strategy and main algorithm can be computed in the STM32 slave station.
Study on Meshing Force and Rigid-Flexible Coupling Dynamic Simulation of Cycloid Drive
Authors: Su De Yu , Luo Shan Ming , Wang Jian
Published: October 2014

The meshing force between pin wheels and gear teeth of modified and standard cycloidal gears is calculated. The parametric model of cycloidal gear and pin wheels is built. The flexible processing of cycloidal gear and pin wheel is conducted using Ansys software. The virtual prototype of cycloid reducer is built. The dynamic simulation of rigid-flexible coupling of modified and standard cycloidal gears has been developed, respectively. The meshing force with friction is calculated and the maximum equivalent stress is obtained. A comparison study of the meshing force using theoretical method is also carried out. It is significant to provide theoretical and technical supports for cycloidal gear design.
Application of Grey Model in Intelligent-Control of Micro-Hole Abrasive Flow Machining
Authors: Yang Shu Zhen , Jin Wei , Bai Yu Jie
Published: October 2014

In this paper, a control system based on the prediction of processing flow in Abrasive flow machining is designed. In this system,flow is predicted by an improved GM(1,1) model in conformation of background value. Combined with fuzzy control system, it can adapt the pressure to meet the processing requirement automatically. Experiments proved that the improved GM(1,1) model can predict the processing flow accuratly, and the fuzzy control system based on grey prediction can improve the machining accuracy of micro-hole AFM effectively.
Energy-Saving Monitoring System of Central Air-Conditioning
Based on Dynamic Load
Authors: Han Tao , Lai Xue Feng , Yan Liang Wen , Zhang Zai Feng
Published: October 2014

This paper introduces the components of central air-conditioning system and compares the advantages and disadvantages of the PID control and fuzzy control.Fuzzy control theory and inverter technology are combined to design the Energy-Saving Monitoring System based on the fuzzy control box of STM32F103C8T6,Siemens S7-200 PLC, ABB inverter as the hardware system and interfaces configuration of KingView as the software. Experimental results show that the water system can be variable flow controlled based on the dynamic load, central air-conditioning energy efficiency the COP has greatly improved under the premise of ensuring the comfort of central air-conditioning.
A Novel Wind Power Micro-Generator Research on Dielectric Electro Active Polymer
Authors: Lin Gui Juan , Wang Ke Sheng
Published: October 2014

Wind power is emerging as a particularly attractive form of renewable energy. The predomination of Dielectric Electric Active Polymer (DEAP) has been shown to operate in transforming mechanical strain energy to electrical energy as generator mode. Their characteristics make them potentially well suited for wind power takeoff systems. In this article, a novel DEAP micro generator is successfully developed about mechanical-electro energy conversion model. The proposed energy harvesting is based on capacity change induced by the mechanical strain. With the Mooney-Rivlin model, the theoretical modeling of energy harvesting cycle are analyzed. To verify the theoretical analysis, the prototype has been set up on the DEAP wind power micro-generator in this work. Many experiments were performed to verify the usability of the proposed DEAP generator method. These experimental investigations coincide with the energy conversion theory analytical model. The DEAPs have been proved to provide electrical energy with density as high as 1.5J.g-1.This value is much higher compared with the density of piezoelectric polymer (0.3J.g-1). The work will push forward the practical use of wave power for supplying general electrical needs, and supply theoretical foundation for potential applications such as ocean wave power.
Analysis for the Security of Industrial Control System and Coping Strategies
Authors: Luo Xiao Dan
Published: October 2014

With the progress of science and technology, the application of industrial Control System (ICS) is becoming more and more widely, meanwhile various security problems can not be ignored. This article introduces the security risks of ICS in the level of system design, safety management, natural disaster and personnel malicious attacks. It also gives some coping strategies to solve these given problems based on the security requirements stipulated in the related standards.
Research on Techniques of Intelligent Manufacturing Data Management
Authors: Liu Jia Jia , Zhu Wen Hua , Soulier Eddie , Remy Sebastien
Published: October 2014

With the rapid development of digital information in manufacturing and the gradually serious problem of "Information Island", the problem how to get the valuable intelligence manufacturing data into effective management, has become more and more critical at present. This paper introduces the different types and definition of object in the manufacturing, focuses on intelligent manufacturing of the data management technology that based on Teamcenter - including intelligent manufacturing of resources management and the management of the manufacturing technology of classification management technology, which are made in-depth discussion and research, and provides a referable method for effective data management to solve the problem that the enterprises have confronted in intelligent manufacturing production, what’s more, this paper may exert positive influence on the practice of enterprise production manufacturing.
Studies on Techniques of Integrated House Assembly Simulation
Authors: Mao En Hui , Zhu Wen Hua , Eynard Benoit , Bricogne Matthieu
Published: October 2014

This thesis introduces integrated house assembly simulation platform technology. It is divided into three categories: assembly simulation for the center with product design, assembly simulation for the center with assembly planning and assembly simulation for the center with virtual prototype. According to the characteristics of the integrated house assembly and modeling, it puts forward level assembly analysis method and studies the assembly system planning, assembly sequence planning and assembly path planning simulation technology. The results show that through the production system and assembly operation simulation technology research, it improves the rationality of the integrated house assembly process planning.
Approach of Composing Disassembly Model Based on the CAD Information for End of Life Product
Authors: Wu Zhao Ren , Zhou Zi Qiang , Dai Guo Hong
Published: October 2014

For the purpose of recycling end of life product, Selective disassembly methods are most common used for dismantling the old product. Only some parts which valuable for remanufacturing or reuse are dismantled. In addition, the optimal disassembly sequence which created automatic by the computer will help to decrease the disassembly cost and increase the whole revenue of recycling process. However, the disassembly model are still cannot be composed by the computer automatic, that is, some of the work need be done manually. Especially, the priority information among the parts should be analyzed by the engineer. In this paper, an automatic method is presented by comparing the feature of the parts. And then, by extracting and analyzing mates in the assembly, the adjacent information is obtained. Adjacency information and priority information respectively expressed by adjacency matrix and influence matrix, which can be used to depict the hybrid graph model in matrix-form, achieving the automatically creation of disassembly hybrid graph model.
Research and Implementation of Real-Time Scheduling Management of WIP in the Workshop Based on RFID
Authors: Yuan Zi Long , Liu Li Lan , Liu Xue Wei , Chen Cheng
Published: October 2014

According to the problem of being hard to achieve precise management of production in the actual production environment, RFID tags are used to identity production materials and RFID readers are placed at some important workstations and warehouse channels, to gain products information in real-time, automatically and accurately. On the basis, the paper uses J2EE programming to design the real-time scheduling management system of WIP (work-in-process), and realizes the closed-loop control of production. The system has been successfully applied to Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, and satisfactory results are obtained.
Quality Inspection with Chi-Square Automatic Interaction Detector and Self-Organizing Map
Authors: Stupar Lelija , Yu Quan , Wang Ke Sheng
Published: October 2014

This paper describes two methods for the industrial quality inspection: Supervised classification algorithm Chi-Square Automatic Interaction Detector (CHAID) and unsupervised clustering algorithm Self-Organizing Map (SOM). The classification and clustering are modelled in IBM software SPSS. Models’ functioning is illustrated on a wheel assembly geometric features inspection. The classifying accuracies are compared for the two methods. CHAID has shown better classifying ability than SOM, while SOM can be used to improve quality of predictor values, and therefore classifiers accuracy.
An Efficient Degradation Particle Swarm Optimization Algorithm for 3D Location in RFID System
Authors: Li Jie Lin , Liu Jin Fei , Guo Wei An
Published: October 2014

With the proliferation of radio frequency identification (RFID) systems, existing two dimensional (2-D) location algorithms cannot meet the manufacturing demand anymore. In this paper, an efficient degradation particle swarm optimization (DPSO) algorithm is proposed to solve the three dimensional (3-D) location problems in passive tag RFID systems. Performance evaluation shows this method can approach the actual target tag position with acceptable deviation and stability which can meet the newly generated production demand.
A Performance Measurement System to Support Materials Management in Engineer-to-Order Companies
Authors: Sjøbakk Børge , Bondarenko Oksana , Kamran Tara
Published: October 2014

Materials management is one of the most important and critical processes within production planning and control in engineer-to-order (ETO) companies. To bring attention to this activity, ETO companies may benefit from a performance measurement system (PMS) that systematically monitors how well the activity is carried out. However, limited literature specifically addressing performance measurement in ETO has been identified. As a response to this, literature on ETO and performance management and –measurement has been reviewed and discussed in order to propose a PMS for measuring materials management performance in ETO. The research provides a basis for further studies on the topic, and the proposed PMS could be used by managers in ETO companies to assess and improve their materials management practice.
The Importance of Asset Management and Hidden Factory for Integrated Planning
Authors: Rødseth Harald , Schjølberg Per
Published: October 2014

The purpose of this paper is to investigate in Asset Management and the metaphor “hidden factory” and evaluate to what extent this is of importance for Integrated Planning (IPL). Integrated Planning is facing the challenges in the industry with “silo thinking”, which hinders the organisation to optimise the cooperation between the different functions in the production system, e.g. the cooperation between production planning and maintenance planning. The result shows that there are indeed elements both in Asset Management and from the hidden factory concept that supports the IPL concept. In particular it has been proposed specific KPIs and a dashboard for the planners in IPL.
Research on the Requirements Analysis of CIMS for the Discrete Manufacturing Enterprises
Authors: Zhang Xu Qian , Zhu Wen Hua , Eynard Benoit , Bricogne Matthieu
Published: October 2014

The key of the manufacturing enterprises whether can acquire the ideal management goal in CIMS system is how to carry out the effective requirements analysis of CIMS according to the actual situation of the enterprises in China, which is also one of the keys to implement the CIMS successfully in enterprise.The paper firstly analyze the manufacturing characteristics of the discrete manufacturing enterprises and discuss the content of the requirements analysis about CIMS,then find out the various problems from the enterprise present situation analysis, thereby carry out the CIMS systems research. Finally practice and verify the requirements analysis of the CIMS application engineering for one discrete manufacturing enterprise in Shanghai.
Improving Accessibility and Efficiency of Service Facility through Location-Based Approach: A Case Study at Narvik University College
Authors: Yu Hao , Solvang Wei Deng , Yang Jin Guang
Published: October 2014

Location problem of service facility has never lost its appeal to both academics and practitioners due to the complexity in balancing availability, responsiveness and efficiency. In this paper, a location-based study is performed in order to improve the accessibility of service facility in terms of availability and responsiveness for customers as well as the efficiency for service providers. This study employs two well-known location models for service facility: Maximal covering location model which aims to maximize the coverage of customer demands with limited number of facilities (efficiency) and p-median location model which aims to minimize the overall distance travelled from customs to service facilities (accessibility), and location-based comparison of the two solutions in a case study at the 3rd floor of the main building of Narvik University College (NUC) for improving the overall performance of printing service is conducted so as to illustrates a deep insight of real-world application. The optimal solutions for maximizing the overall performance are obtained under different scenarios, and Lingo software is applied for resolving the computational optimization problems.
Data Management Research of Digital Workshop Monitoring System
Authors: Wang Dong , Hu Xiao Mei , Wang Yu Bin , Yu Tao
Published: October 2014

With the development of the digital workshop technology, the digital workshop monitoring system is becoming more and more demanding. Data management is a key technology in the design of digital workshop monitoring system. The simulation model of the workshop is established based on virtual reality platform software Visual Components in the paper. The data in the production field are sent by Labview software, and the receiver is programmed by C# and the received data are stored in database created by SQL Server2008. TCP/IP protocol is used to realize the transfer between sender and receiver. Three fault libraries are established to achieve fault warning in digital workshop monitoring system. An example of digital workshop monitoring system is shown to prove the feasibility.
Designing a Practical Production Scheduling and Control System: A Case Study in a Norwegian Manufacturing Company
Authors: Arica Emrah , Baardsgaard Mads , Strandhagen Jan Ola
Published: October 2014

Production scheduling and control under uncertainty is among the most persistent challenges in the field of operation management. Despite the significant amount of research in this domain, many studies still underline the gap between scheduling theory and practice. In this paper, we outline the important aspects to consider in the design and implementation of decision support systems for the scheduling task by reviewing the literature. From the identified guidelines, we examine a practical case and propose a decision support system for the production scheduling task in an actual manufacturing environment.
The Thermal Expansion Coefficient of Dispersion Nuclear Fuel Elements
Authors: Nie Li , Wang Xiao Gang , Jiang Xin , Pang Chang Tao
Published: October 2014

A representative volume element is chosen to act as the research object to analyze the thermal expansion coefficient of the dispersion fuel elements. The thermal analysis is carried out for the thermal behaviors using FEM. The results are compared with several theoretical models.
Simulation-Based Engineering Approaches for Renewable Energy Conversion Systems
Authors: Lemu Hirpa G.
Published: October 2014

The article provides a brief overview of the existing simulation-based engineering approaches with main focus on applications in analysis and simulation of renewable energy conversion systems. Among available numerical simulation tools, the study focuses on finite element analysis and multibody dynamics simulation techniques that are currently attracting the major research attention. Any mechanical simulation task presupposes existence of a simulation model, commonly in a computer-aided design tool. Thus, the approach used to merge design data with other computer-aided engineering environment is discussed and elaborated. This approach is particularly beneficial for design optimization of wind and wave converters to be installed at harsh and unfriendly environment for testing physical prototypes.
Research on Tolerance Simulation and Improvement of Gas Turbine Generator
Authors: Liu Jing , Li Ming , Zhan Gao Wei
Published: October 2014

VisVSA is a kind of 3-D tolerance analysis software which offers high reliability calculation based on Monte Carlo simulation. This paper uses VisVSA to improve the design of gas turbine generator. In many factors that affect designing properties, the impact of manufacturing precision and assembly precision through comparative analysis are discussed.
First Principles Calculations of Interfaces in Ultra High Temperature Ceramics
Authors: Tomar Vikas
Published: October 2014

This work focuses on understanding the influence of temperature on correlations between thermal conduction and mechanical strength in material interfaces including a high temperature material interface. Analyses examine single crystal ZrB2, single crystal SiC, and a <0001>-<111> ZrB2-SiC interface using a framework based on Car Parrinello molecular dynamics (CPMD) ab-initio simulation method from 500 K to 2500 K. Analyses indicate that the strength reduction with increase in temperature is strongly correlated to phonon and electron thermal diffusivity change. With increase in temperature, phonon thermal diffusivity increases in the case of ZrB2 and reduces in the cases of SiC as well as the interface. Electron contribution to thermal diffusivity increases with temperature increase in the case of interface. Examination of change in thermal properties at different mechanical strain levels reveals that the mechanisms of strength and thermal property change with increase in temperature may be similar to the mechanisms responsible for property change with change in applied strain.