螺旋桨桨叶模态试验分析

Modal measurement and analysis of the propeller blade

通过对单片桨叶模型在不同边界条件、激励方式、激励装置等方式下进行模态分析试验,分析比较了各种影响因素下螺旋桨桨叶的模态参数(模态频率,模态阻尼),这些数据和规律对工程上螺旋桨的减振降噪技术有一定参考价值。

By taking modal tests of a single blade under different boundary conditions exciting devices and methods,influences on the modal parameters of an appropellor have been discussed.The results supply references to peoples who will to decrease the vibration and hydro-acoustic noise induced by appropellors.