复杂结构刚体惯性参数识别方法与试验
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中图分类号:

TH113.1

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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)。


Rigid body inertia parameter identification method and experiment for complex structures
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    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。

    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.

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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,2018,41(10):9-18.

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  • 收稿日期:2018-05-08
  • 在线发布日期: 2018-10-22
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