许多不规则非均质复杂构件的重心位置很难精确计算,需要用实验方法确定。不同质量和形状的复杂构件相应用不同的方法和设备测定。对某些细长或短粗的轴对称构件,例如小型导弹、炮弹的重心位置,用天平式重心仪测定比较简便、精确。一、结构与技术指标根据用途和结构形式的不同,天平式重心仪可分为轴向重心仪和径向偏心仪两种。轴向重心仪结构如图1所示。它主要用于测量细长型轴对称构件重心位置。能测构件的最大长度取决于主、副尺的长度;最大质量取 Many irregular heterogeneous complex components of the center of gravity position is difficult to accurately calculate the need to experimentally determine. Different quality and shape of the complex components corresponding to different methods and equipment determination. For some slender or stubby axisymmetric components, such as small missiles, shells center of gravity position, with the balance center of gravity measurement is relatively simple and accurate. First, the structure and technical indicators Depending on the use and structure of different forms, balance center of gravity can be divided into two kinds of axial center of gravity and radial eccentricity. Axial gravity center structure shown in Figure 1. It is mainly used to measure the center of gravity of the elongated axisymmetric member. The maximum length of the member to be measured depends on the length of the main and auxiliary rulers; the maximum mass is taken