四、实验模态分析的主要内容1.两种模态分析方法及其相互关系模态分析方法有两种:一是解析法,一是实验法。多年来这两种方法在独立地平行发展。但是要真正很好地解决实际振动问题,还是应当把二者结合起来。因为实际结构十分复杂,不能都用实物或模型模拟。如果没有理论指 Fourth, the main content of the experimental modal analysis 1. Two modal analysis methods and their relationship There are two modal analysis methods: First, analytical method, one experimental method. Over the years these two methods have developed independently and in parallel. However, to really solve the actual vibration problem, we should combine the two together. Because the actual structure is very complex, you can not use physical or model simulation. If there is no theory