首页 | 本学科首页   官方微博 | 高级检索  
     检索      

复杂结构刚体惯性参数识别方法与试验
引用本文:罗渊,王攀,邓兆祥,于锋,梁柱.复杂结构刚体惯性参数识别方法与试验[J].重庆大学学报(自然科学版),2018,41(10):9-18.
作者姓名:罗渊  王攀  邓兆祥  于锋  梁柱
作者单位:汽车噪声振动和安全技术国家重点实验室;重庆大学汽车工程学院
基金项目:汽车噪声振动和安全技术国家重点实验室开放基金资助项目(NVHSKL-201502)。
摘    要:为了高效精确地识别复杂结构刚体的惯性参数,基于频响函数质量线法,设计了惯性参数识别试验装置。采用多体动力学仿真分析了系统刚度与阻尼、噪声、激励点坐标误差、响应点坐标误差、激励角度误差以及传感器安装角度误差对惯性参数识别精度的影响规律。借助搭建试验装置,对已知惯性参数的样件进行识别,惯性参数误差都在5%以内。表明基于频响函数质量线法的试验装置可以高效精确地识别复杂结构刚体的惯性参数。

关 键 词:参数识别  刚体  惯性参数  频率响应  质量线
收稿时间:2018/5/8 0:00:00

Rigid body inertia parameter identification method and experiment for complex structures
LUO Yuan,WANG Pan,DENG Zhaoxiang,YU Feng and LIANG Zhu.Rigid body inertia parameter identification method and experiment for complex structures[J].Journal of Chongqing University(Natural Science Edition),2018,41(10):9-18.
Authors:LUO Yuan  WANG Pan  DENG Zhaoxiang  YU Feng and LIANG Zhu
Institution:State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing, 401122, P. R. China;School of Automotive Engineering, Chongqing University, Chongqing, 400044, P. R. China,State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing, 401122, P. R. China;School of Automotive Engineering, Chongqing University, Chongqing, 400044, P. R. China,State Key Laboratory of Vehicle NVH and Safety Technology, Chongqing, 401122, P. R. China;School of Automotive Engineering, Chongqing University, Chongqing, 400044, P. R. China,School of Automotive Engineering, Chongqing University, Chongqing, 400044, P. R. China and School of Automotive Engineering, Chongqing University, Chongqing, 400044, P. R. China
Abstract:In order to identify the inertia parameters of complex structure rigid body with high efficiency and accuracy, an identification test device was built based on the FRF mass line method. The influence of system stiffness and damping, noise, coordinate error of excitation point and response point, angle error of hammer excitation and sensor installation on the identification accuracy were obtained by multibody dynamics simulation. A rigid body with known inertia parameters was identified by the proposed device and the error was within 5%. It shows that the test device based on the FRF mass line method can identify inertial parameters of complex structure rigid body efficiently and accurately.
Keywords:parameter identification  rigid body  inertial parameters  frequency response  mass line
本文献已被 CNKI 等数据库收录!
点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《重庆大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号