Step-by-step decoupling method for inverse substructuring analysis of a three-component coupled packaging system

被引：17

作者：

Wang, Jun ^{[1
]}

Wang, Zhi-wei ^{[2
]}

Lu, Li-xin ^{[1
]}

机构：

[1] Jiangnan Univ, Dept Packaging Engn, Wuxi 214122, Peoples R China

[2] Jinan Univ, Key Lab Prod Packaging & Logist, Guangdong Higher Educ Inst, Guangzhou, Guangdong, Peoples R China

来源：

JOURNAL OF VIBRATION AND CONTROL | 2015年 / 21卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Multi-substructure coupled system; frequency response function; inverse substructuring method; decoupling; packaging;

D O I：

10.1177/1077546313490185

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Based on a step-by-step decoupling method, an inverse substructuring method is developed for the analysis of the dynamic characteristics of a single-coordinate coupled three-substructure system. The closed-form analytical solution to inverse substructuring analysis of the system is derived. The proposed method is validated by a lumped mass-spring-damper model, the predicted frequency response functions (FRFs) of substructures and the coupling stiffness; in addition, the most relevant system-level FRFs are compared with the direct computations, showing exact agreement. Finally, the sensitivity of the proposed method to measurement error is studied. The method developed offers an approach to extract the unknown substructure-level FRFs and coupling stiffness from system-level FRFs purely for single-coordinate coupled substructures.

引用

页码：676 / 683

页数：8

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