Harmonic response calculation of viscoelastic structures using classical normal modes: An iterative method

被引：30

作者：

Li, Li ^{[1
]}

Hu, Yujin ^{[1
]}

Wang, Xuelin ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

来源：

COMPUTERS & STRUCTURES | 2014年 / 133卷

基金：

中国国家自然科学基金;

关键词：

Viscoelasticity; Frequency response analysis; Harmonic analysis; Frequency response function; Mode superposition method; Modal truncation problem; NONLINEAR EIGENVALUE PROBLEMS; NUMERICAL-METHOD; TIME-DOMAIN; DYNAMIC-RESPONSE; SANDWICH PLATES; SYSTEMS; TRUNCATION; VIBRATION; ACCELERATION; SENSITIVITY;

D O I：

10.1016/j.compstruc.2013.11.009

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

An efficient iterative method, which only requires normal modes, is presented to calculate the harmonic response of viscoelastic structures. The method only needs to iteratively solve a diagonal dynamic equation instead of solving the dynamic equation directly such that it takes O(N-2) instead of O(N-3). However, the iterative procedure based on lower normal modes cannot be converged to the exact result. A modal correction technique is therefore introduced to improve the accuracy of iterative results. Finally, the efficiency and applicability of the method are illustrated in terms of sandwich plates with different types of viscoelastic core. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：39 / 50

页数：12

共 50 条

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