Firstly , the disperse characteristics and the related theoretical results of the guided waves in different materials and distinct structures are introduced 介绍导波在不同材料和结构中的频散特性及与之相关的理论成果。
The disperse characteristics of thin plate and pipe can also be found . considering the multimode and disperse characteristics of water - filled pipe , the leak location arithmetic model was constructed 研究表明:该方法不仅可以提高声发射源定位检测精度,还可以得到结构的频散特性; 3