2010 International Conference on Mechanical and Electrical Technology最新文献

{"title":"Wireless vehicular Accident Detection and Reporting System","authors":"R. K. Megalingam, Ramesh Nammily Nair, Sai Manoj Prakhya","doi":"10.1109/ICMET.2010.5598437","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598437","url":null,"abstract":"In this paper, we suggest a method to intelligently detect an accident at any place and any time and report the same to the nearby ‘service provider’. The service provider arranges for the necessary help. Accident Detection and Reporting System (ADRS) which can be placed in any vehicle uses a sensor to detect the accident. The sensor output is monitored and processed by the PIC16F877A microcontroller. The microcontroller takes decision on the traffic accident based on the input from the sensors. The RF transmitter module which is interfaced with the microcontroller will transmit the accident information to the nearby Emergency Service Provider (ESP). This information is received by the RF receiver module at the ‘service provider’ control room in the locality. The RF transceiver module used has a range up to 100 meters under ideal conditions. The service provider can use this information to arrange for ambulance and also inform police and hospital. We used low cost RF modules, a microcontroller by Microchip, LCD module and an accelerometer. This system can be installed at accident prone areas to detect and report the same. MPLAB IDE and Proteus software are used to simulate part of the system. ADRS also implements an intelligent Accident Detection and Reporting Algorithm (ADRA) for the purpose.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129331169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical properties and microstructure analysis of 0.5% Niobium alloyed ductile iron under austempered process in salt bath treatment","authors":"B. Abdullah, S. K. Alias, A. Jaffar, Amirul Abd Rashid, A. Ramli","doi":"10.1109/ICMET.2010.5598431","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598431","url":null,"abstract":"The purpose of this work was to compare the mechanical and physical properties for 0.5% Niobium alloyed ductile iron (0.5% Nb-DI) with commercial ductile iron (DI) before and after austempering process. The materials for this investigation were produced by conventional CO2 sand casting process and machined to TS EN 10001 standards for tensile test and ASTM E23 for Charpy impact test. Hardness test, density test and polarization test were also done to the samples. Microstructure observations were made after 2% Nital chemical etched and the fractured surfaces obtained through broken samples of tensile and impact test were evaluated through Scanning Electron Microscopy (SEM). The samples were austenitized at 900°C for 1 hour followed by austempered in a salt bath at 350°C for 3 different holding times which were 1 hour, 2 hours and 3 hours subsequently. The samples were then let cooled to room temperature. All testing were done before and after heat treatment process. The newly developed Nb alloyed DI possessed significant improvement in term of mechanical properties and corrosion behavior in comparison with pure ductile iron. Enhanced properties of the materials make them suitable for various technical and industrial applications.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115257325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strong cache consistency in integration systems","authors":"Zhangyu Wei, Xiong Yongchun","doi":"10.1109/ICMET.2010.5598454","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598454","url":null,"abstract":"Nowadays, a common problem to which many corporations or organizations face is how to easily and uniformly access over multiple, disparate information sources which includes database, object store, knowledge bases, file system, digital libraries, information retrieval system, and electronic mail system. The goal of a data integration system is to provide a uniform query to a multitude of data sources. The key advantage of a data integration system is that it frees users from having to locate the source relevant to their query, interact with each source independently, and manually combine the local answer from the different source to a global answer results. Although a lot of research in integration systems has been proposed over pass ten years, few work was concentrate on the cache consistency problem in such systems. In this paper, we first survey existing caching approach and later explore s strong cache consistency which is suitable to integration systems.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":" 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114101707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research of heterogeneous database integration based on XML","authors":"L. Yunpeng, Xia Meiyun","doi":"10.1109/ICMET.2010.5598473","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598473","url":null,"abstract":"Through the research of the existing heterogeneous database integration technologies, this paper presents a XML-based heterogeneous database information integration model, and analyzes the key technologies of it. Compared with traditional programs, this model has opening, simple achievement, low cost and other advantages.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122630374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PoU based sharp features extraction from point cloud","authors":"Cao Juming, Wushour Slam, Liang Jin, Liang Xinhe, Zhang Dehai, L. Jianwei, Yao Xinhui","doi":"10.1109/ICMET.2010.5598365","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598365","url":null,"abstract":"Sharp features of 3D point clouds play an important role in many geometric computations and modeling application. In this paper, a novel modified Partition of Unity (PoU) Based Sharp feature extraction algorithm is proposed, which is directly operated on discrete point clouds. For every point in target point cloud, spherical neighborhood with radius δ is acquired with the help of KD-Tree and weighted average position of points within the δ -neighborhood is computed using modified PoU method. Distance which is the projection of the displace between original point and its Weighted average position along normal direction is defined as the criteria for a point belong to sharp feature or crease line. Experiments on both synthetic data and practical scanner point clouds indicate that our algorithm are both efficient and effective to the task of sharp feature extraction from point clouds. Our method is easy to be implemented and more sensitive to sharp features as well as its low computational complexity.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128269407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reconstruction the milling force based on the feed motor current signal","authors":"L. Hongqi, Wei Yao-qiang, Tian Hongliang, Mao Xinyong, Mao Kuanmin","doi":"10.1109/ICMET.2010.5598468","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598468","url":null,"abstract":"The response of feed and spindle current signal caused by the cutting force are analyzed based on the cutting experiment. From the results of the time and frequency analysis of the cutting force, the cutting force token in the current signal of the feed motor is identified. Considering the time-varying and non-stabilization of the current signal in the cutting progress, wavelet transform method is used to reconstruct the cutting force token from the current signal. So the cutting force can be on-line monitored in the machining progress. The relative experiments are designed to test the method.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127161177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ride comfort analysis of commercial vehicle using flexible multi-body and finite element methods","authors":"Ma Tianfei, Zuo Ankang, W. Dengfeng, Chen Shuming, Dong Junchao","doi":"10.1109/ICMET.2010.5598367","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598367","url":null,"abstract":"the common theory of building rigid-elastic coupling model with component mode synthesis method is introduced simply. The rigid full vehicle model of some commercial vehicle was built with multi-body system simulation software MSC Adams/Car. According to the National Standard of China GB/T 4970-1996, the simulations in even speed for full-vehicle model on the national road level B were carried out. And its results are conformable to that of vehicle test on the proving ground, therefore, it proves that virtual prototype model is correct and believable. The deformation of the cab was considered and the flex cab template and rigid-elastic coupling model were built with the help of commercial FEA (finite element analysis) program Hyper-mesh and multi-body system simulation software MSC Adams/Car. Via the simulation and the results, the analysis of the effect of the flex cab to the ride comfort was carried out. It can conclude that a flexible multi-body dynamics is the efficient method to analyze the ride comfort of the vehicle. The deformation of the cab should be considered when the ride comfort is performed. A flexible multi-body dynamic model gives better results than a rigid body model, although it takes longer to construct.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127202458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of MEMS based capacitive accelerometer","authors":"T. Sethuramalingam, A. Vimalajuliet","doi":"10.1109/ICMET.2010.5598424","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598424","url":null,"abstract":"MEMS are the manufacturing of a wide variety of items that are electronic and mechanical in nature. In addition to sensors, small motors, pumps, hydraulic systems, warhead fuses, high resolution displays, mass data storage devices are but a few of the devices that can be manufactured using MEMS technology. The characteristics of MEMS fabrication are miniaturization, multiplicity, and microelectronics. Miniaturization not only allows for small, lightweight devices, but these same devices have high resonant frequencies which mean higher operating frequencies and bandwidths for microsensors and microactuators. An accelerometer measures proper acceleration, which is the acceleration it experiences relative to freefall, and is the acceleration that is felt by people and objects. Such accelerations are popularly measured in terms of g-force. At any point in space time the equivalence principle guarantees the existence of a local inertial frame, and an accelerometer measures the acceleration relative to that frame. As a consequence an accelerometer at rest relative to the Earth's surface will indicate approximately 1 g upwards, because any point on the earth's surface is accelerating upwards relative to the local inertial frame, which would be the frame of a freely falling object at the surface. To obtain the pure acceleration due to motion with respect to the Earth, this “gravity offset” must be subtracted. This is generally true of any gravitational field, since gravity does not produce proper acceleration, and an accelerometer is not sensitive to it, and cannot measure it directly. An accelerometer behaves as a damped mass on a spring. When the accelerometer experiences acceleration, the mass is displaced to the point that the spring is able to accelerate the mass at the same rate as the casing. The displacement is then measured to give the acceleration. There are many different ways to make an accelerometer. Some accelerometers use the piezoelectric effect - they contain microscopic crystal structures that get stressed by accelerative forces, which cause a voltage to be generated. Another way to do it is by sensing changes in capacitance. Capacitive interfaces have several attractive features. In most micromachining technologies no or minimal additional processing is needed. Capacitors can operate both as sensors and actuators. They have excellent sensitivity and the transduction mechanism is intrinsically insensitive to temperature.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127301763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical and experimental investigation on effect of installation angle of rotor blade on axial flow fan","authors":"Xiao-kang Yan, Li-jun Wang, Jing-song Zhang, Xin-yong Wang","doi":"10.1109/ICMET.2010.5598382","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598382","url":null,"abstract":"The effect of rotor blade installation angle on the flow field and performance of axial flow fan is presented in this paper. CFD simulation and experimental investigations are carried out with different value of installation angle. First, the inner flow fields of axial fan were simulated and analyzed by using the RNG k-? turbulent model and sliding mesh method of Fluent 6.3 software. Then, a five-hole probe was employed to measure the inner flow field of axial fan, and the variation tendency of velocity and pressure in testing section are found in good agreement with numerical results. The research shows that: with the increasing of installation angle, the lower pressure area induced by impact loss decreases in pressure side, but if installation angle is reduced, the impact loss happened in suction side will be more serious and the wake loss will also be deteriorated. The average total pressure has a trend of markedly increasing at the outlet of rotor; Reversed flow will happen in blade pressure side when installation angle is smaller in off-design condition and the smaller the installation angle, the larger the reverse flow area. Volume flow rate, pressure and torque of fan present an increasing tendency in various degrees with increasing of installation angle, and the fan total efficiency increases at first and then decrease. The total efficiency reduces 3.77% with total pressure drops 23.7% under the decreasing installation angle of 11°, and the peak value arrived at design angle of installation.","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127598549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal design and experimental research of railway wheels with constrained damping treatment","authors":"Z. Wang, Z.B. Chen, J.W. Tan, Y. Jiao","doi":"10.1109/ICMET.2010.5598368","DOIUrl":"https://doi.org/10.1109/ICMET.2010.5598368","url":null,"abstract":"Theoretical model of symmetrical constrained damping structure for railway wheel is established based on complex stiffness method. Four parameters are related to the noise-restraint performance of wheel with damping treatment, which are the thickness of constrained layer, the thickness of damping layer, the loss factor and the complex shear module of damping material. Optimal calculation in the frequency range of railway curve squeal noise is finished. TWINS model is used here to predict the sound pressure level of noise radiated by damping wheel, and comparison between theoretical and experimental results is finished, which indicate the noise radiated from wheel and whole structure can be reduced with 6.6dB(A) and 3.9dB(A).","PeriodicalId":415118,"journal":{"name":"2010 International Conference on Mechanical and Electrical Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121579639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}