一、前言振动试验中用以充实振动理论分析的正弦多点激振技术在航空、航天上的应用已经有相当长的历史了。本文的目的是要简短地评述所谓“模态法”。叙述用一小型计算机为基础的系统同时控制诸激振器 First, the foreword Vibration test to enrich the theoretical analysis of vibration sinusoidal multi-point excitation technology in aviation, aerospace applications have a long history. The purpose of this article is to briefly comment on the so-called modal approach. Narrating the use of a small computer-based system to simultaneously control exciters