bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Floor Material, Surface Condition, and Foot Moving Speed on the Coefficient of Friction on the Floor
Authors: Li Kai Way , Lin Chan Chi
Published: March 2013

A laboratory study was conducted to measure the coefficient of friction between the foot and the floor under three surface and two foot sliding speed conditions. A force platform was adopted to measure the ground reaction force (GRF) of the foot on the floor. The coefficient of friction was calculated as the ratio of vertical and horizontal GRF. Five male subjects were recruited. They were requested to slide their right foot on the tested floor which was mounted on the force platform. The results indicated that floor material, surface condition, and foot sliding speed were all significant factor affecting the COF. Ceramic tile had lower COF under all surface and sliding speed conditions as compared to steel, wood, and vinyl tiles.
Improved Flotation of Oolitic Hematite Ore Based on a Novel Cationic Collector
Authors: Rao Zhi Qiang , Zhang Yu Shu , Jibn Yong Chao
Published: March 2013

Oolitic hematite and limonite in the ore integrate closely with fine particles of collophanite, quartz, chamosite, calcite and chalcedony to form concentric ring structure, making the separation of the minerals extremely difficult. The results indicated that the flotation separation efficiency with most cationic collectors such as dodecylamine, ether amine, GE601 or GE609 was not satisfactory. However, a novel cationic collector for silicon removal, EM506 was found to be specifically selective to separate the gangue minerals from the iron ore with an increase of TFe grade from 49％ to more than 58% and a recovery of TFe greater than 96%, which provided a promising approach for the beneficiation of the refractory oolitic hematite ore.
A New Integrable Hierarchy and the Resulting Expanding Integrable Models
Authors: Guo Xiu Rong , Liu Zheng Tao , Guo Mei
Published: March 2013

A modified dispersive-long-wave (mDLW) hierarchy is obtained by introducing new isospectral problems, the resulting integrable couplings are produced by using a new Lie algebra T6.
Analysis of Displacement in Guandi Underground Powerhouse Based on the Influence of Dislocation Surfaces
Authors: Yuan Meng Ke , Gao Chun Yu , Zheng Hong Chun
Published: March 2013

The monitoring data suggests that the overall displacement in Guandi underground powerhouse is a little less, 87% of which is less than 30 mm, while the maximum deformation can be reached as big as 65.77mm. Combined with the study on excavated geological data, the bigger displacement part of Guandi underground powerhouse is mainly affected by the dislocation interfaces, the excavation disturbance causes an opening displacement on the rock mass near the dislocation interfaces and a much bigger displacement partially. Due to the structural surface cut rock mass, deformation coordination between the surrounding rock and the structure surface after stress applied, the stress concentration appears nearby, measuring range of bolt stress meter is excessed in large displacement cases.
Analysis of Dynamic Reliability on Large-Span Bridge
Authors: Guo Ying , Zhu Guang Yi , Cong Shu Min
Published: March 2013

For the current study of large-span bridges are mostly in the component level, the real structural system reliability analysis is still relatively small, so based on the theory of dynamic reliability analysis of structure, the overall bridge structure system for the calculation model is established ,then reliability analysis under the multi-dimensional seismic load and the effect of dynamic flutter are performed, the results of sensitivity analysis with different parameters are obtained, so it is useful basis for the bridge design and evaluation.
Roundness Measurement and Error Separation Technique
Authors: Ma Yu Zhen , Wang Xin Hua , Kang Yan Hui , Dong Xiao
Published: March 2013

A new three-point method for spindle roundness error measuring was introduced, three capacitive sensors were installed on the measured shaft circularly, and with a certain angle each other, while the spindle was rotating with a certain speed, the capacitive sensors had measurement on the circular profile simultaneously, then through linear combination for three-sensor output signals, the roundness error was effectively separated from the spindle error. There were no strict requirement to initial installation position by using capacitive sensors, as long as ensuring the change of measured rotor error within the linear range of sensors, we could realize effective measurement. The experiment results have verified the effectiveness of roundness error measuring system based on three capacitive sensors.
Study on Techniques of Modeling of Design for Testability
Authors: Wang Zhen Sheng , Sun Jian , Lian Guang Yao
Published: March 2013

Due to the uncertainty in the testing process of electric equipment, Bayesian network is introduced to modify the hybrid diagnostic model, and the HD-BN model is established which has the ability to deal with uncertain information. Considering the relations between functions and failure modes, the priori probabilities of failure modes are corrected, and the uncertain matrix expressing relations between failure modes and tests under uncertainty is acquired based on Bayesian inference, which lay the foundation for further optimization of design for testability.
Target Position Measurement Technology Based on Quantum-Behaved Particle Swarm Optimization
Authors: Yao Jin Jie , Yang Jing , Li Jian , Wang Li Ming , Han Yan
Published: March 2013

Quantum-behaved particle swarm optimization algorithm (QPSO) was proposed as a kind of swarm intelligence, which outperformed standard particle swarm optimization algorithm (PSO) in search ability. This paper presents an improved QPSO with nonlinear controlled parameter according to the fitness value of the particles. Simultaneously, we apply the improved QPSO to solve the problems of target position measurement. The experimental results show that the improved QPSO has faster convergence speed, higher measurement accuracy, and good localization performance.
The Angle Measurement of Folding Wing Craft Based on MEMS
Authors: Yin Chong , Zheng Xiang Ming , Wang Peng
Published: March 2013

The unmanned folding wing aircraft has the advantage on expanding the flight envelope. The angle measurement algorithm of folding wing craft which based on MEMS (micro-electromechanical systems) accelerometers was studied. Collected the acceleration values from the accelerometers, and built the motion parameter model .Used the analyze data and the redundant acceleration; multiple sensors were used to do the error correction. With the experiment of folding wing, the validity and accuracy of the algorithm was verified.
Vibration Response Analysis of MRE Cantilever Sandwich Beam under Non-Homogeneous Magnetic Fields
Authors: Long Ming , Hu Guo Liang , Wang Shao Long
Published: March 2013

A three layer sandwich beam with an aluminum face sheet and a magnetorheological elastomer (MRE) core was fabricated. The transverse motion equations of MRE cantilever sandwich beam under non-homogeneous magnetic fields were derived with the fine Mead-Markus model, and the first natural frequency of the beam were calculated. Meanwhile, the first natural frequency of the beam was also simulated using ANSYS software. The numerical simulations accorded with theoretical results in general. The results are expected to provide guidance to develop broadband vibration isolation devices for railways and rolling stock.
A New Optical Fiber Acoustic Sensor Based on Air Backing Mandrel Type Fiber Optic Hydrophone
Authors: Liu Cheng Long , Wang Zi Nan , Cheng Qian Qian , Osman Hayrigul , Peng Chao , Yang Yi , Zhang Zhen Rong , Li Zheng Bin
Published: March 2013

We propose and demonstrate an optical fiber acoustic sensor based on air backing mandrel type fiber optic hydrophone. This novel approach to sensing sounds in the air has not been utilized before and has the advantage that the sensor doesn’t need electric power supply when it is working. To prove the feasibility of such an optical fiber acoustic sensor, we make a model and set up experiment to get the acoustic waves response curve in frequency. Because of its simple mechanical structure, the sensor is robust and shows a good application prospect.
Surface Defects Detection of Red Jujube Based on Near-Infrared Vision System
Authors: Xu Min , Ma Yue , Chen Shuai
Published: March 2013

Quality evaluation of agricultural and food products is important for processing, inventory control, and marketing. Fruit surface defects are important quality factors for the jujube industry, especially for high quality jujubes such as Xinjiang red jujube. This paper presents the development and test results of a machine vision system for automatic jujube surface defects detection. Unlike other near-infrared spectrometric approaches, the developed machine vision system uses reflective near-infrared image to evaluate jujube quality by analyzing two-dimensional images. Near-infrared image, vision algorithms and a variety of operational details of the system, including cameras, optics, illumination, and fruit carrier are presented. The complete machine vision system has been built, and the experimental results show that the designed machine vision system is feasible to detect the defects of jujubes.
The Study of Test Stimulus Optimization of Analog Circuit Based on AS-PSO Hybrid Algorithm
Authors: Lin Hai Jun , Wang Qi Gao , Sun Ting Yu , Dai Ming Chao , Zhang Xu Hui
Published: March 2013

This paper proposes a novel approach to diagnosis the faults in analog circuits based on Volterra kernel and ant colony-particle swarm algorithms. In the analog circuit fault diagnosis, we use the Volterra kernel as the feature vector which makes the characteristic vector lumped Euclidean distance in serials of fault states under the same excitation signals as the fitness function. And the optimized the parameters are used to stimulate the multi- frequency sinusoidal signal. The AS-PSO hybrid algorithm is performed to find the best excitation signal parameters. Experimental results show that the proposed approach can achieve good faults diagnosis results.
An Evanescent Fiber Sensor for Detecting Low-Level Content H2O in D2O Solutions
Authors: Xiong Fei Bing , Zhu Wen Zhang , Lin Hai Feng
Published: March 2013

An optical fiber sensor based evanescent absorption spectroscopy in the infrared range for the quantitative determination of H2O content in D2O has been evaluated. The coiled optical fiber sensor base on evanescent absorption spectroscopy has been investigated to monitor H2O concentration in D2O. The classical least square model has been utilized to build the calibration model and predict the H2O concentrations. The predicted H2O concentration in D2O is acceptably accurate and susceptible. The work demonstrates that the coiled fiber-optic sensor based on evanescent absorption spectroscopy is a feasible analytical technique for prediction of the low-level H2O content during deuterium oxide distillation in on-line and remote situation
The Water Level Automatic Measurement Technology Based on Image Processing
Authors: Li Hui Ping , Wang Wei , Ma Fu Chang , Liu Hong Le , Lv Tao
Published: March 2013

Design a real-time hydrological monitoring system. Using the ARM processor and video server combination of methods, realize the characteristic features of the next place machine extraction, and then through the GPRS connect PC . Also have the power supply, low power consumption, anti-interference characteristics. The system use Wince programming, to obtain the binary image, using morphological algorithm to remove useless characteristic features, then carries on the edge refinement, use the hough transform to extract the straight line equation of water level and the bank line to compute, can get out the distance between the two in the image, according to the actual coordinate can get the actual distance. The experimental results show that the system has a real time and efficiency, effectiveness, and other characteristics, get a good recognition effect.
Heart Sound Monitor for Biomedical Instrumentation
Authors: Sutdipong Sirimonpak , Tunlasakun Khanchai
Published: March 2013

This research presents the design and development of the heart sound monitor for biomedical instrumentation which can be worked with a personal computer. The prototype will receive the heart sound via the condenser microphone built-in the stethoscope. The condenser microphone will be conversed the air pressure from heart beats to electrical signal that signal will transformed to computer via sound card. The sound card will be conversed the analog signal to digital signal for process by heart sound processing program developed by LabVIEW program. The signal will be analyzed with short time Fourier transforms in heart sound processing program by graphical user interface. The user is able to select a band pass of signal for filter and choose the frequency spectrum of heart sound for display. The output database from this prototype is necessary for Medical Education or Clinical Practice.
Irritable Bowel Syndrome Detection Based on Pulse Signal and Support Vector Machine
Authors: Chang Kang Ming , Chen Jian Jung , Liu Shing Hong
Published: March 2013

In this developed society, most diseases appear due to stress people encounter day to day. Irritable Bowel Syndrome (IBS) is investigated in this study. 29 normal and 9 IBS subjects are involved in this study. Novel Traditional Chinese medicine’s pulse signal measurement system and pulse features are used. Pulse signal harmonicas and regression decay parameters are developed. Further multi-features classification by support vector machine showed that the left hand 9th harmonics and right hand alpha decay parameter are two candidates to differentiate IBS subject. SVM results showed classification performance of 85.7% accuracy, 100 % specificity and 44.4% sensitivity in this system.
Study on Monitoring Water Surface in Poyang Lake by MODIS Image
Authors: Le Xing Hua , Wan Mei Ying , Fan Zhe Wen , Fang Yu , Huang Ling Quang
Published: March 2013

. In the paper, we use med-resolution image data-MODIS to monitor Poyang Lake water surface. The resolution of images is 250 meters. The cycle of the monitoring frequence is 8 days. The monitoring time is from Jan, 1st to June, 25th, 2012. We select water surface in the embankment of Poyang Lake as the research object. The results show that Modis image can extracte water surface information quickly for water monitoring in time. The technology can be supplied to trail the change of Poyang Lake eco-system frequently.
Soil Slope Stability Evaluation in Real-Time Based on Displacement Monitor
Authors: Jiang Ping , He Jun Ru
Published: March 2013

The displacement is the most easily exact acquisition parameter in soil slope. In order to master the stable state of slope in real-time and accurately, the evaluation analysis of soil slope stability based on the information of displacement monitor is established. The Strength Reduction Method is used to describe the stable state of slope. According to Neural Network Algorithm, take the data of Finite Element Method numerical simulation, the function relationship between strength reduction factor and slope displacement is formed, which can calculate the Strength Reduction factor form slope displacement, then slope stability is obtained. At last, efficiency and applicability of this method is verified with a group of numerical simulation data.
Water Content Detection for Fine Iron Powder Based on Capacitance Sensor
Authors: Wang Li Jie , Li Jian , Xu Jing , Wang Yu Jun , Zhou Zhen
Published: March 2013

The water content of fine iron powder is an important parameter to evaluate the fine iron powder price, and there is very important practical significance for rapidly measuring water content of the fine iron powder during manufacturing and trading. So water content detecting method is explored for fine iron powder based on capacitance sensor. The capacitance size depends on the dielectric constant of material between the plates, and the capacitance value reflects the iron powder water content. The water content measurement system for the fine iron powder is designed based on the principle above. The measurement probe components and its testing mechanics are researched, and capacitance measurement circuit and single chip control system of STC89C55 are designed. The software programming and debugging for single chip control system are completed. The experimental results show that the capacitive measurement method of water content for fine iron powder is feasible and easy to implement real-time or rapid monitoring.
Fingerprint Scaling for Sensor Interoperability
Authors: Guo Jian Min , Ren Chun Xiao , Wu Yu Xiao
Published: March 2013

The need for sensor interoperability has increased tremendously in many large-scale fingerprint applications such as e-commerce, welfare-disbursement and e-education. In this paper, we present fingerprint scaling, an innovative fingerprint system module, which resizes the fingerprint images to solve the problem of sensor interoperability with minimum modification to existing system. In template-based scaling methods, we have developed an estimation method using Delaunay triangulation algorithm. The efficacy of the scaling technique has been assessed by embedding a scaling module into a traditional fingerprint recognition system. Our experiments have shown very positive results. Experimental results indicated that the accuracy and robustness of fingerprint system can be improved effectively by embedding such a scaling module into the traditional framework of fingerprint systems under multi-sensor situation.
Pipeline Network Leakage Diagnosis Based on Distance Data Fusion
Authors: Wang Xiu Fang , Li Xue Ming , Yang Qi , Qin De Xin
Published: March 2013

The novel scheme of data fusion is a kind of evidence theories based on distance. We calculate the weight coefficients according to the structure of network and distances matrix between points and sensors. The greater the distance is, the smaller the coefficient will be. Experimental results show that, the proposed algorithm works well with high conflicts and fits characteristics of network.
Meter Reading System of Smart Grid Based on Wireless Sensor Network
Authors: Deng Gui Ping , Chen Jun
Published: March 2013

The smart reading system based on wireless sensor network technology provides a reliable and economic choice for energy data acquisition of smart grid. The structure, main features and technological solutions of smart meter reading system based on wireless sensor network are analyzed in detail in this paper. Finally, this paper points out that the keys for developing China’s wireless sensor network technology are to self-establish standard system and break through critical technology.
Deflection Control of Two-Floors Structure Against Northridge Earthquake by Using PI Controlled Active Mass Damping
Authors: Tinkir Mustafa , Kalyoncu Mete , Şahin Yusuf
Published: March 2013

This paper presents an experimental investigation for deflection control of two degree of freedom building-like structure system against scaled Northridge Earthquake by using PI (Proportional-Integral) controlled active mass damping. Proposed structure consist of two floors with a cart mounted on the second floor such as active mass damping (AMD) and which is used to suppress horizontal deflections. Moreover a shake table under the structure is used to create the acceleration effect of scaled earthquake. Kp and Ki gain parameters of PI controller is determined by observing passive mode behaviour of the structure against Northridge and it is used to control cart movement according to pre-determined deflection criterias of the floors. Deflection and acceleration results of the floors are obtained separately for passive and active mode responses of the system in the form of graphics.
FSI Research on the Noise Barrier of High-Speed Railway in the Composite Conditions
Authors: Wang Hong Chao , Xie Jin Fa
Published: March 2013

Based on the model, it firstly gets the fluid distribution of noise barrier of high-speed railway, which is under the action of train-induced impulsive wind pressure and natural wind load, then transfers the computed result as exported load to the structural analysis module through the coupling interface, by proceeding the transient dynamic analysis and modal analysis, it finally obtains the equivalent stress, total deformation and modal distribution of noise barrier. The results indicate that, compared with train-induced impulsive wind pressure, the natural wind load has a more obvious effect on the structural performance of noise barrier, and its natural frequency is much less than the external load’s, so there will be no resonate happen in practice.
Influence of Bolt Joint on Dynamic Characteristic of Linear Rolling Guide
Authors: Li Xiao Peng , Liang Ya Min , Yang Hao Tian , Ju Xing , Zhao Guang Hui
Published: March 2013

Bolt joint has an important influence on the dynamic characteristic of guide rail. Linear rolling guide is chosen as the research object in this paper. Firstly, the dynamic model of the linear rolling guide joint surface is established and its natural frequency is figured out. Then we use ANSYS to make finite element analysis of guide on whether the bolt joint is considered or not. Finally, the validity of finite element model is verified through modal test. By comparing the results of the two kinds of finite element analysis with the theoretical result, we can conclude that the finite element model considering the bolts joint is closer to the theoretical result. So the bolt joint has a great influence on the dynamic characteristics of linear rolling guide. This paper provides the theoretical guide for the research on the bolt joint.
Study on Automobile Door Closure Sound Quality Objective Evaluation
Authors: Zhang Xiao Juan , Liu Yan , Liu Zong Cai , Qiu Yi Bo , An Li Bao , Yang Bing
Published: March 2013

Automobile door closure’s sound quality is good or bad directly affecting customers evaluate to vehicle performance. Foreign automobile manufacturers spend lots of manpower, material and financial resources to improve and research door closure quality [1-3]. Door closure is important embodiment of product quality and performance, which is related to design method, manufacture process, sealing material, etc. This paper selects three different models and series cars, measuring their exterior door closure and anglicizing objective parameters of sound quality. It conclusion that front door frequency concentrated in 200-2000 Hz; back door’s concentrated in 315-2500Hz;The significant frequency band of characteristic loudness contains linear and A sound pressure level significant frequency band, etc.The result can provide ideas for automobile vibration and noise reduction.
Noise Test and Analysis of Automobile Engine
Authors: Liu Yan , Jia Yan Bin , Zhang Xiao Juan , Liu Zong Cai , Ren Yong Chao , Yang Bing
Published: March 2013

To test different car’s noise in a semi-anechoic room with different engine’s speed, measure and analysis engine noise’s characteristics and the dash panel’s sound insulation quantity. The conclusion is that：the engine noise gets bigger 10 dB(A) when engine speeds up every 1000 r/min; engine noise’s frequency mainly distributed in 1600 ~ 4000 Hz; peak part concentrates in the range 100 ~ 400 Hz; engine noise has no direct relation to engine’s displacement; cab noise frequency mainly concentrated in the range 250 ~ 630 Hz and the peaks exist in the intermediate and low frequency part, the high frequency part attenuates obviously which show the car’s dash panel has a good noise insulation and absorption effect in the high frequency part but not too ideal at the intermediate and low frequency especially in the range 250 ~ 630 Hz. These results have high practical value for the design of the automotive to decline noise and vibration.
Research on the Sprocket Tooth Shape of Sintering Machine
Authors: Tian Guo Fu , Wang Ke Wen , Zhang Yu
Published: March 2013

The principle and characteristic of odd-tooth sprocket and even-tooth sprocket of sintering machine were discussed from kinematics and dynamics. The advantages of the two types tooth shapes are given. The odd tooth can receive uniform force. The design of the odd tooth shape is determined by experience, it can’t accurately meet the movement needs. Even tooth sprocket tooth curve is derived from the analytical formula, but it receives non-uniform force. Both of the two types tooth shapes affect the sintering machine’s motion performance and thus affect the productivity and economy. The work helps to design the tooth shape of sintering machine.
Analyzing Reentry Vehicle Control Vane Effect on Stability of a Vehicle in the Atmospheric Outgoing Phase
Authors: Asl Vahid Balouchestani , Farahani Somayeh Davoudabadi
Published: March 2013

In this paper, the effect of RV (Reentry Vehicle) control vane on stability of a launch vehicle in the atmospheric outgoing phase will be analyzed. Despite of necessity for stability or control purposes in atmospheric re-entry phase, the RV vane has adverse effects on the stability of the whole launch vehicle in the phase of atmospheric outgoing. For analyzing this, a pilot launch vehicle is selected, the geometry is modeled in GAMBIT, flight data is extracted and using FLUENT, the launch vehicle conditions is simulated and the stability results is extracted for analyzing that shows the adverse effects of RV control vane on whole launch vehicle stability. Finally, some suggestions are offered.
Numerical Simulation of Load Optimization in Multi-Dimension Vibration Test
Authors: Hu Jie , Zhao Huai Yun
Published: March 2013

This paper introduced a load optimization method in multi-dimension vibration test when the number of shaking table is less than the number of target response. The response equivalence principle is considered as response approximation, the optimization purpose is set as the minimum error between control response and target response, then the load applying in multi-dimension vibration test is analyzed stand at the point of load optimization. Genetic algorithm(GA) is used as the optimization arithmetic, and the numerical simulation result verified the effectiveness of this optimization method. The research of this paper proposed an effective way of calculating the load in multi-dimension vibration test.
Reduction Vibration of Mechanical Systems
Authors: Dymarek Andrzej , Dzitkowski Tomasz
Published: March 2013

In this work the method of active synthesis of mechanical systems in accordance with the desired frequency spectrum has been formulated and formalised. Active synthesis of a proportional regulation system has been performed in accordance with the method formulated and a verification of the correctness of the results has been carried out.
Investigation of the Hertzian Stress Distribution on the Surface of the Straight Bevel Gear
Authors: Bahramighahnavieh Aref , Mosaddegh Peiman , Akbarzadeh Saleh
Published: March 2013

In this paper, a model has been developed for calculating the Hertzian stress distribution of straight bevel gear. One pair of straight bevel gear teeth replaced with multiple pairs of spur gear teeth by using Tredgold approximation. The transmitted load and radii of curvature are evaluated and used to determine the stress distribution. The results show that these stresses are constant along the face width of tooth. Moreover, the magnitude of theses stresses are in good agreement with the simulation results using commercial ABAQUS software
Computer Simulation and Modelling of 3D Travelling Wave Ultrasonic Motor Using a Flexural Vibration Ring Transducer
Authors: Shafik Mahmoud , Nyathi B. , Fekkai S.
Published: March 2013

This paper presents a 3D piezoelectric ultrasonic motor using a single Flexural Vibration Ring Transducer. The motor consists of three main parts, the rotor, the stator and the housing unit. The stator is a piezoelectric transducer ring made from PZT S42 material. Three steel rods and a magnet were designed to support the rotor. The rotor is a sphere of metal that rests on the stator intersecting at the tips of the steel rods and the magnet. The housing unit is made of Perspex, a transparent thermoplastic material. Longitudinal and bending vibration modes, of oscillating structures are superimposed in the motor, generating elliptical micro motions at the driving tips. Pressing the rotor against the stator tips the micro motions are converted into a 3D rotational motion, via the friction between the tips of the three rods and the rotor. The motor structures, working principles, design and finite element analysis are discussed in this paper. A prototype of the motor was fabricated and its characteristics measured. Experimental tests show typical speed of movement equal to 35 revolutions per minute, a resolution of less than 5μm and maximum load of 3.5 Newton.
Experimental Investigation of Full-Order Observered and LQR Controlled Building-Like Structure Under Seismic Excitation
Authors: Tinkir Mustafa , Kalyoncu Mete , Şahin Yusuf
Published: March 2013

In this paper, the dynamic behaviour of two degree of freedom building-like structure system against unexpected input such as seismic excitation is considered by experimentally. Proposed system consists of two floors structure with active mass damping (AMD) and shaker. Passive and active mode deflection responses of the floors are investigated and also a cart is used to suppress vibrations, which moves linear direction and is mounted on the second floor. PV (proportional and velocity) control of the cart is realized in passive mode. Moreover LQR (Linear Quadratic Regulator) control is designed to control the cart in active mode while system under excitation. For this aim a full-order observer is designed and implemented to control strategy. Displacements of cart, deflections and accelerations results of the floors are presented separately for passive and active mode responses of the system in the form of graphics.
Observation of Wear Surface between Pure PEEK and Counterpart Materials; Titanium and 7075 Aluminum Alloy, in Robot Joint
Authors: Itakura Kiyoto , Koike Hitonobu , Kida Katsuyuki , Kanemasu Kenji
Published: March 2013

In our recent work, in order to realize joint element in lightweight and compact joints for tall humanoid robots, a new joint element was designed. It consists of a harmonic drive gearing device, a multi axis mechanism and a resin bush. The resin bush slides on a titanium crankshaft of the pole shape while the joint works. However, the bush was stuck, and stopped movement of the joint. In our present work, we observed the bush surfaces against two materials; the titanium and the 7075 aluminum alloy have been used. We could observe the differences between the titanium and the 7075 aluminum alloy by an optical microscope after the fatigue tests.
The Study of Specific Materials Used by the Copper Wiring CMP of GLSI
Authors: Liu Yu Ling , Wang Juan , Gao Bao Hong
Published: March 2013

In this paper, the multi-hydroxyl polyamines researched by ourselves are used in the slurry of the copper wiring CMP of GLSI, which makes the slurry alkalization. It also has the using as a pH adjusting agent, complexion agent of copper ion, multi- metal chelating agents, aminating agent of acidic oxides, pH buffer, stainless steel corrosion inhibitor, the active agent and pro-oxidant. It improves the property of slurry and solves many different of acidity slurry. The alkalinity slurry contained the multi-hydroxyl polyamines is environmental, inexpensive and composition- simplified. Without the toxic BTA which is must be used in the international and has side effect, the slurry can achieve the high speed and high flat. In the same time the low pressure and the little abrasive can be realized, which provide the new material for the removal of TSV copper film.
Fourier Transform Infrared Spectroscopy for Wear Debris Adhesion on PEEK Bearing Surface
Authors: Mizobe Koshiro , Takamiya Masahiro , Honda Takashi , Koike Hitonobu , Santos Edson Costa , Kashima Yuji , Kida Katsuyuki
Published: March 2013

Polyetheretherketone (PEEK), a tough semi-crystalline thermoplastic polymer with excellent mechanical properties and polytetrafluoroethylene (PTFE), valued for its low friction coefficient are popular materials used for the production of bearings. In this work, rolling contact fatigue (RCF) tests were performed in order to investigate wear on bearing surfaces by using the Fourier Transform Infrared Spectroscopy (FT-IR). It is reported that PEEK’s specific peak at 1243cm-1 was shifted and PEEK’s polymer bearing crystalline content level on wear surface remained unchanged by contact stress or wear debris adhesion.
Surface Stoichiometry and Oxidation of NiTi
Authors: Zhu Jian Xin , Jin Da Wei , Zhang Jian , Zhao Hong Liang
Published: March 2013

NiTi shape memory alloy is considered to be the most important shape memory alloys for its salient superelasticity and shape memory effect,which are displayed in martensitic transformations.In this paper, first-principles plane-wave method is utilized to systemically investigate the geometrical and electronic structures of NiTi (100) surface.Calculated the adsorption of oxygen atoms on the Ti/ NITI different location .The formation energy, Millikan population analysis results show that the Oxygen atoms easy to be adsorbed on the surface of Ti end surface,formation of TiO2.
Theoretical Study of the Mechanical Properties by Using the Acoustic Signature
Authors: Bouhedja Samia , Hamdi F.
Published: March 2013

Acoustic wave propagation in solids can carry valuable information on mechanical properties and is therefore used to determine Young, E, bulk, K and shear, G moduli which depend on longitudinal and transverse velocity VL and VT respectively. In this context acoustic microscopy can successfully be used in the investigations of porous materials. In micro-analysis, it directly determines the mechanical properties of materials via acoustic signature, V (z); this signature is obtained by recording the change in the reflected acoustic signal with the defocusing distance, z, as the sample is moved towards the acoustic lens. In this work, we simulate the porous alumina (PAl2O3) acoustic signature, V (z), as a function of porosity to evaluate the output signal attenuation at different operating frequencies. We continue our simulation by the determining of the propagating velocities as a function of porosity by the use of the fast Fourier transform (FFT). In a large part of this work, our interest concerns the study of the porous alumina microstructure by calculating the elastic constants. We compare then the obtained values of Young and bulk moduli to the published data given by various ultrasound methods.
Numerical Simulation and Experiment on Quenching Process of P20 Die Steel with New Online Pre-Hardening Equipment
Authors: Liu Guo Yong , Zhu Dong Mei , Zhang Shao Jun , Li Mou Wei , Gong Shi Chuang
Published: March 2013

A new online pre-hardening (OPH) equipment for quenching die steel has been developed by University of Science and Technology Beijing (USTB) and Dongbei Special Steel Group in Dalian Special Steel Co., LTD. OPH equipment consists of strong cooling water jet, medium cooling water jet, weak cooling water jet, air-water spray, and side water jet and has flexible cooling and control ability. Based on the equipment, online quenching process of AISI P20 (3Cr2Mo) die steel was performed by numerical simulation and production experiment. The result of temperature field by numerical simulation agrees well with experiment result, which can prove that numerical simulation can be a very good guidance for production experiment. Experimental tempering metallographic structure of the whole P20 plate is tempered troostite and the tempering hardness difference of P20 die steel can be controlled within 3 HRC in the whole plate under quenching process by numerical simulation. The prediction technology of numerical simulation can meet the different cooling rate control and make quenching process comply with preset quenching route to guarantee material microstructure and performance.
Robust Scheduling, a Production Scheduling Model of Failures
Authors: Paprocka Iwona , Skołud Bożena
Published: March 2013

In the paper a production model with failures is presented where successive failure-free times are supposed to have normal distributions and are followed by normally distributed times of repairs. Unknown parameters of the distribution are estimated using e.g. empirical moments approach. Predictions of unknown parameters are done using classical regression method. Having Mean Time To First Failure, and Mean Time of Repair a disturbance robust predictive schedule is generated using an immune algorithm and rule Minimal Impact of Disturbed Operation on the Schedule.
Manufacturing and Production Collaborative Customers Preference
Authors: Ho Zih Ping , Pan Tzu Ning
Published: March 2013

Modern manufacturing involved many productions’ constraints and corporation’s objectives. This study tries to considering manufacturing process with customer preference modification; beside, takes convenience stores producing thawing and heating prepared (THP) food for an example. The study constructed a THP diversity with customer preference selection model. Two distribution data of customer behavior were introduced to design parameters of customer preference indicators. Through computer system simulations, the results showed it would increase the profits if manufacturing process considering customers preference. However, it may result in different profits if some of the assumptions are revised. Future research suggests applying this model to others industries.
Durability Analysis for Selected Cutting Tools in Machining Process of Steel 16MoV6-3
Authors: Duplák Ján , Hatala Michal , Michalik Peter
Published: March 2013

Durability of cutting tool defines lifetime of this cutting tool and it determines its suitability for select technological operation. Technical science defines a lot of different factors, that they may be cause of shorter cutting tool lifetime. For increase cutting tool durability is necessary maximally possible elimination of these factors. Determination of cutting tool durability is very important, because provides comprehensive information how to determine appropriate technological conditions for selected cutting tool. In engineering is for determination of cutting tools durability used T-vc dependence. Durability of cutting tools is defined in standard ISO 3685. In standard ISO 3685 is defined T-vc dependence for different cutting materials and standard included process evaluation of tool durability for cutting materials made of high speed steel, sintered carbide and cutting ceramic. Specification of cutting tools durability in machining process of steel 16MoV6-3 is very important for economics of small and medium-sized enterprises, because cutting tool durability is factor that significantly affects the budget of these enterprises. Standard ISO 3685 contains instructions how to create T-vc dependence for cutting tools. In this standard are only instructions how to create T-vc dependence according to Mr. Taylor. The article describes process how to create durability dependence for cutting tools made of sintered carbide in machining process of 16MoV6-3 by means of T-vc dependence.
Visual Reconstruction and Optimization of Real Workplace on the Base of Spatial Digitisation
Authors: Novak-Marcincin Jozef , Barna Jozef , Torok Jozef , Janak Miroslav
Published: March 2013

This article provides perspective into creation of virtual 3D model of existing robotic workcell to optimize productive process and save space. Separate parts of the paper describe the process of creation of the environment with the usage of an alternative scanning device, namely Kinect in combination with various software applications. This alternative offers scans of environment and components surfaces that are from the viewpoint of precision and quality comparable with much more expensive devices but based only on open source elements.
Experimental Measurement and Examination of Independent and Combined Interaction of Vibrodiagnostic and Tribotechnical Methods
Authors: Fabian Stanislav , Čačko Peter
Published: March 2013

The article studies, based on the evaluation of the experimental research, effectiveness of independent and combined interaction of vibrodiagnostic and tribotechnical methods when diagnosing gearbox of the small hydroelectric power station in course of 6 months. During this time the general overhaul of the gearbox was carried out, where the measurements, analyses and evaluations were focused on run-in and a shorter after run-in period of the gearbox.
Water Jet Technology Head Vibration Generation due to Selected Technology Parameters Fluctuation Effect during Alloy Cutting
Authors: Bicejova Luba
Published: March 2013

The paper deals with a research of technology parameters fluctuation effect on AWJ production system technology head vibration generation during alloy cutting production process. The submitted paper points at possible sources of undesirable vibrations: technology head shift speed, kind and abrasive granularity, which can be a reason of reliability and AWJ technology production systems lifetime reduction, and of abrasive nozzle wear increasing as well as of cutting edge quality reducing.
Principles of Modular Architecture in the Manufacturing Technology
Authors: Svetlík Jozef , Demeč Peter
Published: March 2013

The article deals with the issue of modularity as a tool for flexible and efficient production systems. When having closer look at implemented terms in production structures there emerges amount of terms used, such as: flexible, modular, modular manufacturing systems, which are often viewed from a subjective point of view. Due to efforts to standardize and clarify the terms referred above this paper brings definitions of flexible production structures terminology, their relationships and new idea for the efficient division.
Some Aspects of the Hard Machining of Bore Holes
Authors: Kundrák János , Varga Gyula , Deszpoth Istvan , Molnar Viktor
Published: March 2013

The machining of hardened surfaces can be done even fulfilling the ever stricter accuracy and quality prescriptions, besides the economic efficiency. Decisively, hard machining is highlightedly important in finish processes because the components must meet increased functional demands. Therefore the number and/or the hardness of the hard surfaces on the components is continuously increasing. In practice the demand for such components is high since they are more wear resistant and their tool life may be higher. Today there are several possibilities for finish machining of components having hard surfaces. We have done experiments for hard machining of inner cylindrical surfaces. The examined procedures were as follows: grinding, hard turning, combined machining. The first two procedures (hard turning, grinding) have got different procedure-specific advantages and disadvantages. Combining these two procedures, using-up the advantages of them, the efficiency of the production can be increased. This paper outlines these procedures of hard machining, their applicability, the increase of their efficiency, and the possibilities provided by the combination of the procedures.
Support of Logistic Processes in Modern Retail Chain Warehouse
Authors: Klabusayová Naděžda
Published: March 2013

The aim of the article is to analyse and to provide a detail determination of some aspects that influence the effective functioning of the stock processes in the modern retail chains. The article deals with the monitoring of the Key Performance Indicators (KPI) and of the efficiency of the stock processes. Another areas described in the article are some aspects of the modern stock management by using the Warehouse Management System (WMS) with orientation on the reception of goods and picking of goods processes. In the area of the reception of goods, the article deals with the utilization of the Electronic Data Interchange for the Despatch Advice (EDI DESADV) in combination with the exploitation of the Serial Shipping Container Code (SSCC) during the goods reception. The picking of goods process is supported by the voice technology for picking of goods.
Total Productive Maintenance in Enterprise Operations Support Processes
Authors: Kot Sebastian , Grondys Katarzyna
Published: March 2013

So far the objective of the concept of TPM has been to increase the effectiveness of production by means of involvement of operative workers at different levels in the assigned tasks. As a result, an enterprise which was focused on profits coming from its basic activity minimized production loss by implementing some preventive measures with regard to technical and technological equipment. Nowadays, the application of the concept of TPM in the area of primary processes may be insufficient to realize the assigned production targets. In the paper there are characterized the support processes which, along with the use of the principles of TPM, constitute a coherent idea while aiming at minimizing loss and not only the production loss.
On the Possibilities of Intelligence Implementation in Manufacturing: The Role of Simulation
Authors: Delgado Sobrino Daynier Rolando , Košťál Peter , Cagáňová Dagmar , Čambál Milos
Published: March 2013

Over the years, the world of manufacturing has witnessed significant work in the area of Intelligent Manufacturing. Special efforts have been made in the implementation of new technologies, management and control systems, among many others which have all evolved the field. Closely following all this and due to the scope of new projects and the need of turning the existing flexible ideas into more autonomous and intelligent ones, i.e.: Intelligent Manufacturing, the present paper emerges with the main aim of contributing under a this new intelligent denomination to the design and analysis of the material flow in either systems, cells or workstations. For this, besides offering a conceptual basis in some of the key points to be taken into account and some general principles to consider in the design and analysis of the material flow, also some tips on how to define other possible alternative material flow scenarios and a classification of the states a system, cell or workstation are offered as well. All this is done with the intentions of relating it with the use of simulation tools, for which these have been briefly addressed with a special focus on the Witness simulation package. For a better comprehension, the previous elements are supported by a detailed layout, other figures and a few expressions which could help obtaining necessary data. Such data and others will be used in the future, when simulating the scenarios in the search of the best material flow configurations.