失谐叶盘结构振动响应局部化实验研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (1) : 29-34.

论文

失谐叶盘结构振动响应局部化实验研究

廖海涛;王帅;王建军;李其汉

作者信息 +

Experimental investigation of the worst case forced response localization of a mistuned bladed disk assemblies

LIAO Hai-tao; WANG Shuai; WANG Jian-jun; LI Qi-han

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文章历史 +

摘要

基于作者提出的预测失谐叶盘结构最大失谐幅值放大系数及最坏失谐模式的方法，利用搭建的行波激励实验系统，针对典型的整体叶盘结构模型试件进行了失谐振动响应局部化实验。首先通过有限元仿真确定失谐叶盘振动响应局部化实验所需的最坏失谐模式，然后经过数据采集与后处理得到行波激励下失谐叶盘结构的强迫响应，通过实验验证了失谐跳变-强迫响应局部化现象，实验结果与理论分析取得较好一致性。

Abstract

In order to validate the numerical methods and phenomena that have proposed by the previous theoretical study, the experimental demonstration are carried out. The numerical methods is first used to predict the worst-case mistuning patterns under different engine order excitations , the measurement of the validation blisk response to an engine order traveling wave excitation is then accomplished using the optical measurement systems. The results of the experimental data are used to verify the theoretical and numerical predictions about bladed disk dynamic behaviors. Good agreement between experimental measurements and finite element anal-ysis is obtained. The occurrence of mistuning jump- forced response localization phenomena is also validated.

导出引用

廖海涛;王帅;王建军;李其汉. 失谐叶盘结构振动响应局部化实验研究 [J]. 振动与冲击, 2012, 31(1): 29-34

LIAO Hai-tao;WANG Shuai;WANG Jian-jun;LI Qi-han. Experimental investigation of the worst case forced response localization of a mistuned bladed disk assemblies[J]. Journal of Vibration and Shock, 2012, 31(1): 29-34