本标准是一套五个标准的第二部分，涵盖了通过适用于不同测试情况的各种方法对结构的机械迁移率进行实验测定。第一部分（ANSI S2.31-1979）涵盖了基本概念和定义以及移动性测量任务中使用的仪器。本装置的第二部分描述了单点平动激励和附加振动激励器适用的情况下的测量。

This standard is the second part of a set of five standards covering the experimental determination of mechanical mobility of structures by a variety of methods appropriate for different test situations. Part I of the set (ANSI S2.31-1979) covers basic concepts and definitions as well as instruments used in mobility measurement tasks. The present Part II of the set describes measurements in situations where single-point translational excitation with an attached vibration exiter is appropriate.