This article,based on the principle of modal analysis in testing,describes the application of modal analysis on the blade used in Ex high efficiency &save energy disrotatory blower fan for coalmine.

• 文章在介绍试验模态分析原理的基础上,对高效节能矿用防爆对旋主通风机用叶片的模态分析的应用进行了叙述。