﻿ 基于半功率带宽法的薄板涂层结构阻尼特性测试

# 基于半功率带宽法的薄板涂层结构阻尼特性测试Damping Measurement of Thin Coating Plate Based on Half Power Method

Abstract: The damping characteristic of thin plate coat structure was studied in this paper. Recognition algorithm of half power bandwidth method was first introduced, and then the measurement experimental system was established. The damping characteristic of titanium membrane of thin plate was recognized by the half power method. The damping characteristic of titanium membrane of thin plate coated with TiZrN was measured. The parameters of damping system were estimated. The natural frequency of coated thin plate mistuned and the damping characteristic amplified obviously.

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