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Proceedings of 2011 International Conference on Fluid Power and Mechatronics最新文献

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Design and simulation of Voice Coil Motor for the micro-electric load simulator 微电负载模拟器音圈电机的设计与仿真
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045895
Yonghui Cao, Shuai Wu, Z. Jiao
{"title":"Design and simulation of Voice Coil Motor for the micro-electric load simulator","authors":"Yonghui Cao, Shuai Wu, Z. Jiao","doi":"10.1109/FPM.2011.6045895","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045895","url":null,"abstract":"The advance of high-frequency response and micro-torque electric actuator motivates the study on high performance motor for load simulator. A novel high-precision swing-arm Voice Coil Motor (VCM) has been proposed in this paper. The research investigates the feasibility of this new structure applied to the VCM. Abiding by the equivalent rotary inertia idea, mechanical structure and magnetic field interactive design have been implemented with the electromagnetic simulation software-Ansoft's Maxwell. An iterative optimal design process is then proposed to maximize the force constant of the VCM and to minimize the inertia of the rotor. Simulation results are given to illustrate that the proposed design procedure can preliminarily achieve a satisfactory performance.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121367074","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}
引用次数: 6
Effects of shape of vane on force of vane in high pressure vane pump 高压叶片泵叶片形状对叶片受力的影响
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045726
Li Shaonian, Wei Liejiang, Wang Zhengrong, Ji Hong
{"title":"Effects of shape of vane on force of vane in high pressure vane pump","authors":"Li Shaonian, Wei Liejiang, Wang Zhengrong, Ji Hong","doi":"10.1109/FPM.2011.6045726","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045726","url":null,"abstract":"Aiming at problem of force condition of vane in high pressure vane pump, through analyzing hydraulic pressure forces, motion inertia forces and contacting reaction forces which were exerted by stator and rotor in vane, dynamic model of force in inlet area was built. Contacting reaction forces were solved at two cases of considering vane's shape, thickness and didn't, a series of variation curves of contacting reaction forces were obtained by simulation. Through analyzing and contrasting, great differences were found at two cases, and sometimes much effect will be generated if vane's shape and thickness is ignored. Force condition of vane with arc top is better than Single-sided sloping vane whose top isn't arc.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127996655","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}
引用次数: 2
Vibration and scattering monitoring of Japanese roofing tile by accelerometer 用加速度计监测日本屋面瓦的振动和散射
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045724
S. Okamoto
{"title":"Vibration and scattering monitoring of Japanese roofing tile by accelerometer","authors":"S. Okamoto","doi":"10.1109/FPM.2011.6045724","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045724","url":null,"abstract":"A series of wind tunnel tests were conducted on the vibration and scattering behavior of full-size models of tiles widely used as roofing materials on Japanese wooden dwellings. This study has investigated the nature and source of such movement with the aim of providing better insight into the mechanism. The roofing tiles were set up on a pitched roof in the downstream flow from a wind tunnel. Vibration of the tiles was measured by using the Laser Doppler Vibrometry and an accelerometer, while the practical natural frequencies of the roofing tiles were analyzed by the impulse force hammer test method. Vibration and scattering motions were observed by a high-speed video camera. The result of these measurements indicates that a basic mechanism can be developed that will lead to flow-induced vibration of the roofing tiles. This system is similar to that of fluttering instability, which appears as self-excited oscillation in the structure's natural mode at a certain critical flow speed. The values of the oscillation frequencies relate to the values of natural frequencies of the vibration.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133999016","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}
引用次数: 3
Study on application of Principal Component Analysis to fault detection in hydraulic pump 主成分分析在液压泵故障检测中的应用研究
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045752
L. Siyuan, Ding Linlin, Jiang Wanlu
{"title":"Study on application of Principal Component Analysis to fault detection in hydraulic pump","authors":"L. Siyuan, Ding Linlin, Jiang Wanlu","doi":"10.1109/FPM.2011.6045752","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045752","url":null,"abstract":"This paper presents a method of squared prediction error changes based on Principal Component Analysis(PCA) of Q statistics to deal with real-time online fault detection of hydraulic pump. In this method, feature vector sample set expressed by frequency band energy information of wavelet packet decomposition is extracted by effective signal processing and feature. Then, establish main element model by normal samples and compare the samples with test samples achieved by Q statistics method to detect faults;Next, describe fault change characteristics with contribution diagram; lastly, test results of different fault types are researched through experimental data of center of spring failure, off-shoe, slipper and loose boot of axial piston pump.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130451837","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}
引用次数: 9
Optimal design of piezoelectric-driven tilting mirror for laser scanner 激光扫描仪压电驱动倾斜镜的优化设计
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045818
Jung-Ho Park, Hu-Seung Lee, Jae-Hoon Lee, Y. Ham, S. Yun
{"title":"Optimal design of piezoelectric-driven tilting mirror for laser scanner","authors":"Jung-Ho Park, Hu-Seung Lee, Jae-Hoon Lee, Y. Ham, S. Yun","doi":"10.1109/FPM.2011.6045818","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045818","url":null,"abstract":"Recently, laser scanners have been used for laser processing such as cutting, welding and grooving. It needs a highspeed driving to minimize crack caused by thermal shock of brittle materials. Therefore, a novel laser processing system has been investigated that is composed of a laser source and a piezoelectric-driven tilting mirror to control reflection angle of laser beam, and a stage equipped with the tilting mirror. In this study, a piezoelectric-driven tilt mirror is designed and analyzed for scanning performance that needs to make a beam spot of 30μm, a pattern width of 1mm, and scanning speed of 1m/s. Then, structural analysis on the tilting mirror with three piezoelectric actuators is calculated to determine maximum reflection angle, resonance frequency.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132775013","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}
引用次数: 3
Study on amendment of orifice equation for small spool displacement and application 小阀芯位移孔板方程的修正及应用研究
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045852
Yu Juntao, J. Zongxia, Wu Shuai, Zhang Rui
{"title":"Study on amendment of orifice equation for small spool displacement and application","authors":"Yu Juntao, J. Zongxia, Wu Shuai, Zhang Rui","doi":"10.1109/FPM.2011.6045852","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045852","url":null,"abstract":"The accurate orifice equation was researched. The slide-valve geometric parameter (gap and fillet) was considered, the influence of it on orifice flow was obtained from flow area equivalent and flow average velocity by methods of theoretical analysis and CFD(computational fluid dynamics) numerical simulation. The accurate orifice equation was amended. The accurate valve flow equation considering gap and fillet was acquired by the analysis and calculation of the flow through four valve orifices according to the amended orifice equation. The correlative coefficient of servo valve flow was achieved by linearized analysis for valve flow equation. The curve of flow characteristics against spool displacement considering gap and fillet was achieved. It provided theoretical basis for the design and simulation of Piezoelectric Direct-Drive Valve (PZT DDV) in practical application.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128597021","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}
引用次数: 0
Numerical evaluation of bubble eliminator for hydraulic systems 液压系统消泡器的数值评价
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045822
Sayako Sakama, R. Suzuki, Yutaka Tanaka
{"title":"Numerical evaluation of bubble eliminator for hydraulic systems","authors":"Sayako Sakama, R. Suzuki, Yutaka Tanaka","doi":"10.1109/FPM.2011.6045822","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045822","url":null,"abstract":"Air bubbles in working oil influence stiffness and efficiency of hydraulic systems, thus it is important for technical issues to eliminate the air bubbles actively from the hydraulic oil. Bubble eliminator is a device that removes air bubbles by using a swirling flow. The purpose of this study is to design optimal shape of the bubble eliminator. Flow and volume fraction of bubble in the bubble eliminator have been studied by numerical analysis. It is numerically evaluated to confirm effects of some parameters: diameter of outlet port, diameter of vent port, inlet flow, height of inlet port, length of inlet tube, length of tapered tube and diameter of inlet tube. The optimal dimensions of the bubble eliminator are proposed and the performance of bubble eliminator is evaluated by numerical simulation.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131974057","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}
引用次数: 0
Nonlinear primary resonances of a pneumatic spring under simple harmonic excitations 简谐激励下气动弹簧的非线性主共振
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045763
Y. Zhong, Qingjun Yang, Gang Bao
{"title":"Nonlinear primary resonances of a pneumatic spring under simple harmonic excitations","authors":"Y. Zhong, Qingjun Yang, Gang Bao","doi":"10.1109/FPM.2011.6045763","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045763","url":null,"abstract":"The nonlinear primary resonances of a pneumatic spring with simple harmonic excitations were studied by the method of nonlinear dynamics. Through testing, load curve of the pneumatic spring under a certain initial pressure was got. According to the test data, the relative elastic force was fitted to relative displacement by cube polynomial equation. The method of multiple scales was used to solve nonlinear dynamics equations. Nonlinear primary resonances were obtained and the effect of the parameters were studied. The results show that the frequency-response curve have much to do with the parameters. The nonlinearity becomes evidence with cube stiffness increasing. As the amplitude of the excitation increases, the frequency-response curves bend away from the linear axis. The peak amplitude decreases with damping coefficient increasing. These can be quite useful for the designing of a pneumatic vibration isolation system.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133144435","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}
引用次数: 3
Research on stepless speed fuel supply based on pressure regulation 基于压力调节的无级调速供油研究
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045798
Zhang Xiao-yi, Yang Cheng-shi, P. Bo, Xie An-huan, Zhou Hua
{"title":"Research on stepless speed fuel supply based on pressure regulation","authors":"Zhang Xiao-yi, Yang Cheng-shi, P. Bo, Xie An-huan, Zhou Hua","doi":"10.1109/FPM.2011.6045798","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045798","url":null,"abstract":"Due to the underwater thermal power system has the characteristic of big parameter variations, strong nonlinearity and other characteristics, it is difficult to achieve variable speed control. In this paper, we proposed a new way of stepless speed control of fuel supply, in order to realize precise control of the high-pressure fuel through regulating device, controller, driver and pressure generator. The simulation analysis and experiments showed that this method had rapid response, slight overshoot characters, and could meet the dynamic performance, stability and security requirements.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133458475","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}
引用次数: 0
A flexible electro-conjugate fluid micropump with three-dimensional triangular-prism-slit electrode pair 三维三角-棱镜-狭缝电极对柔性电共轭流体微泵
Proceedings of 2011 International Conference on Fluid Power and Mechatronics Pub Date : 2011-10-17 DOI: 10.1109/FPM.2011.6045793
Hai-bo Wang, Joon-wan Kim, S. Yokota, K. Edamura
{"title":"A flexible electro-conjugate fluid micropump with three-dimensional triangular-prism-slit electrode pair","authors":"Hai-bo Wang, Joon-wan Kim, S. Yokota, K. Edamura","doi":"10.1109/FPM.2011.6045793","DOIUrl":"https://doi.org/10.1109/FPM.2011.6045793","url":null,"abstract":"Electro-conjugate fluid (ECF) is one kind of dielectric and functional fluid, which generates a powerful jet named ECF-jet when electrodes inserted into it are subjected to high DC voltage. For the purpose of realizing some flexible micro devices based on such interesting phenomenon, this paper mainly focuses on the research of a flexible ECF micropump. As the ECF-jet generator of the studied micropump, a type of three-dimensional (3D) electrode pair so-called triangular-prism-slit (TPS) electrode pair is applied, thanks to its great merits of combining easy fabrication by micro electromechanical system (MEMS) technology and relatively high performance. Meanwhile, in order to generate stronger ECF-jet and realize flexibility of micropump simultaneously, high aspect-ratio TPS electrode array is fabricated on a flexible polyimide (PI) substrate by MEMS technology. Micro fluid channels are embedded and well sealed using sandwich structure of polydimethylsiloxane (PDMS) cover, PI substrate with electrodes, and PDMS case by package technology. Finally, the flexible micropump with 10×10 pairs of electrodes and feature size 25.4mm×25.4mm is attempted in this paper.","PeriodicalId":241423,"journal":{"name":"Proceedings of 2011 International Conference on Fluid Power and Mechatronics","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133963797","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}
引用次数: 0
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