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《Journal of Chongqing University of Technology(Natural Science)》 2015-11
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Finite Element Analysis of Torque Sensor Based on COSMOL Surface Acoustic Wave

LI Zhi-peng;LI Xiao-ying;SHAO Xian-you;Traffic College,Northeast Forestry University;  
Based on the research of automotive steering torque measuring methods,we analyzed the work mechanism of SAW torque sensor and advantages,and established its mechanical and mathematical model. We analyzed selection elements of the elastic axis which is the core of steering torque sensor devices and piezoelectric diaphragm. Based on COMSOL's large simulation function of elastic axis and piezoelectric diaphragm finite element analysis,we simulated the mechanics characteristic of the surface acoustic wave torque sensor,and ensured that the sensitive diaphragm and elastic under the maximum torque and cannot be damaged under the maximum torque and ensured its sensitivity when taking the minimal torque,which provides theoretical basis for designing SAW torque sensor for vehicle steering devices.
【Fund】: 黑龙江省科学技术基金资助项目(E051103)
【CateGory Index】: U463.4;TP212
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