框架结构的高阶局部模态分析与试验

Modal analysis for high-order part of frame structure and its test

介绍了规则链式结构的局部模态特性,分析了框架结构的高阶模态及局部模态试验,表明框架结构高阶局部模态具有模态密集特性,子结构和整体结构之间存在着动力耦合。

It introduces part modal feature of chain structure and analyzes high-order mode of frame structure and its test, it indicates it has modal intensive feature and minor structure with whole structure exists dynamic couple.