欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
轮胎试验台的力与力矩测试精度直接影响到轮胎数据的准确性，应用多体动力学理论对所研发的平板式六自由度低速轮胎试验台进行研究，分析了该试验台姿态控制的机理，推导出试验台轮胎六分力解算公式，并用abaqus有限元软件验证其准确性。然后对设计加工出的试验台进行标定，结果表明：3个方向的力吻合较好，但是力矩并不特别理想。经合理分析假设，试验台6个电缸铰支的硬点实际安装中存在空间的偏差，对其进行辨识优化分析，结果表明：优化后三方向的力及力矩与标定值吻合的精度符合要求，力的精度高于0．75％，力矩精度可达1％左右，证明了铰支安装偏差的假设是合理的，也体现出该轮胎试验台在测试精度上的优势。
英文摘要：
Force and moment measurement accuracy of the tire test rig directly affects the accuracy of the tire data. A new type of tire test rig developed by research team was analyzed. Based on multi-body dynamics theory, the mechanism of the attitude control of the test rig was analyzed and equation solver of force and moment of the test rig was derived. The accuracy of equation solver was verified by abaqus which is finite element software. Then the test rig which had been designed and processed was calibrated. The results showed that forces in three directions were in good agreement with the calibration, while moments were not particularly desirable. A reasonable assumption was made that the space bias of hardpoint at the hinged of six power cylinder of tire test rig was existed. Then the identification and optimization of spatial coordinates were made. The results showed that the optimized forces and moments in three directions were in good agreement with the calibration. Force accuracy was higher than 0. 75 % and torque precision can reach about 1%. Results proved that reasonable, also indicated the potential of this new test rig on the hinged misalignment assumptions were test accuracy.
同期刊论文项目
同项目期刊论文
期刊信息
位置：