| 基于载荷分布预分析的应变传感器布置 |
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| 引用本文： | 陆毅,郑松林,冯金芝,赵礼辉.基于载荷分布预分析的应变传感器布置[J].汽车科技,2012(1):47-50. |
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| 作者姓名： | 陆毅 郑松林 冯金芝 赵礼辉 |
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| 作者单位： | [1]上海理工大学机械工程学院,上海200093 [2]机械工业汽车底盘机械零部件强度与可靠性评价重点实验室,上海200093 |
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| 基金项目： | 基金项目：国家自然科学基金资助项目（50875173）;国家“十二五”863重大项目（2011AA11A265）;上海市科委科研计划项目资助（09DZ1100500）;上海市科委基础研究重点项目（10JC1411600）;上海市教育委员会科研创新重点项目（09ZZ157） |
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| 摘 要： | 采用载荷分布预分析技术，对某MPV汽车后桥进行了有限元分析，得到了该后桥在静载、制动、转向及扭转4种工况下的应变云图和张量图。通过分析应变云图和张量图，确定了该后桥的关键受载部位及其主应力方向，然后处理标定试验数据，线性回归出后桥载荷一应变的函数关系，并通过实车道路试验结果分析验证了通过有限元分析确定出的后桥应变传感器贴片位置的正确性。
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| 关 键 词： | MPV后桥 载荷分布预分析 载荷谱：应变传感器 |
The Layout of Strain Sensor Based on the Preanalysis Load Distribution |
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| LU Yi,ZHENG Song-lin,FENG Jin-zhi,ZHAO Li-hui.The Layout of Strain Sensor Based on the Preanalysis Load Distribution[J].Automobile Science and Technology,2012(1):47-50. |
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| Authors: | LU Yi ZHENG Song-lin FENG Jin-zhi ZHAO Li-hui |
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| Institution: | 1.School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China ; 2.Machinery Industry Key Laboratory for Mechanical Strength ＆ Reliability Evaluation of Auto Chassis Components, Shanghai 200093, China ) |
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| Abstract: | In this paper,the load distribution of the rear axle of a MPV （Multi-Purpose Vehicle） is preanalyzed by using the finite element analysis method, which obtains the contour and the strain tensor map under the four working conditions of the rear axle with static load, braking, steering and torsion. By analyzing the contour and strain tensor maps, the key load locations and their main stress direction is identified. Through processing data of the calibration tests,the equations of linear regression between load and strain on the rear axle are determined. Comparing with the real vehicle road test resuits, the placement locations of the sensor on the rear axle which is determined through the finite element analysis, are verified to be correct. |
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| Keywords: | rear axle of a multi-purpose vehicle preanalysis of load distribution load spectrum strain sensor |
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