标准摘要
[中文适用范围]： 本文件规定了评估支撑和旋转的硬轴承和软轴承平衡机的要求： a) 在平衡速度下具有刚性行为的转子（如 ISO 21940-11 中所述）； b) 具有轴弹性行为并根据低速平衡程序进行平衡的转子（如 ISO 21940-12 中所述）。 [外文原描述]： This document sets out the requirements for evaluating hard and soft bearing balancing machines that support and rotate: a) rotors with rigid behaviour at balancing speed (as described in ISO21940-11); b) rotors with shaft elastic behaviour and balanced in accordance with low speed balancing procedures (as described in ISO21940-12).
英文名称Mechanical vibration — Rotor balancing — Part 21: Description and evaluation of balancing machines