惯性张量测量研究综述

A REVIEW OF INERTIAL TENSOR MEASUREMENT RESEARCH

惯性张量是描述刚体做定点转动时转动惯性的量度,是控制系统设计的关键参数。近年来,飞行器技术的发展使得精确测量大尺寸异形体的惯性张量的需求变得十分迫切。首先,回顾了惯性张量测量的研究历程及当前存在的问题,分别讨论了扭摆法、复摆法、能量法和参数法等方法的测量原理。然后,探讨了这些测量方法在测量大尺寸异形体的惯性张量时需要面对的诸如测量误差的来源和误差补偿等问题。最后,总结了惯性张量测量的发展历程,并指出了目前研究存在的问题和后续的研究方向。

The inertia tensor is a measure of the rotational inertia of a rigid body when it rotates around a fixed point,and it is a key parameter in the design of control systems.The recent development of aircraft technology has made the need to accurately measure the inertia tensor of large⁃size irregular objects very urgent.Firstly,the research history and current problems of inertia tensor measurement were reviewed,and the measurement principles of methods such as the torsion pendulum method,the compound pendulum method,the energy method,and the parameter method were discussed respectively.Secondly,the issues such as the sources of measurement errors and error compensation that need to be faced when these measurement methods measure the inertia tensor of large⁃size irregular bodies were explored.Finally,the development history of inertia tensor measurement and point out the current problems and the follow⁃up research directions was summarized.