The vibration characteristics of propeller blades have been investigated by using experimental modal analysis technique.
本文用试验模态分析技术研究了螺桨桨叶振动特性。
Experimental modal analysis is a technique to build modal model based on the measured data.
实验模态分析是基于实测数据建立系统数学模型的技术。
A method of mode correction is suggested to improve the accuracy of the experimental mode based on the results of experimental modal analysis, modal synthesis technique and Rayleigh's method.
用试验模态分析结果、模态综合技术、瑞利法相结合的办法，提高了试验模态分析所得振型的精度。
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