转动惯量测量装置推介及适用性选择方法

转动惯量是物体的重要参数之一。转动惯量的测量是物体参数特性测量的重要部分,在机械设计和工程实践中具有重要意义,如它的测定有助于明确做定轴转动的零部件的工作特性和性能,也是研究和控制飞行体飞行轨道和姿态的必要环节。简要介绍了确定转动惯量的方法,包括计算和测量方法。目前,转动惯量的测量设备也是层出不穷,型号齐全,进一步介绍了国内外典型转动惯量测量装置的原理和优缺点,分析如何依据实际需求正确地选择测量精度高、方便且成本低的装置。

Typical Moment of Inertia Measurement Devices

The moment of inertia is one of important parameters of object. The measurement of moment of inertia is a significant part of parameters measurement,it is significant in the mechanical design and engineering practice,for example,its measurement can contribute to definite the working characteristics and performances of parts rotating a fixed axis,and also it is an essential part for researching and controlling the flight orbit and attitude of flight body. Methods to determine the moment of inertia are simply introduced,including the methods of calculation and measurement. At present,there are many measuring equipments of moment of inertia with full range of models,the principles and the advantages and disadvantages of typical measuring devices of moment of inertia at home and abroad are further introduced in this paper,and methods how to correctly choose high measuring accuracy,convenience and low cost device according to actual demands are analyzed.