A two-step model reduction approach for mechanical systems with moving loads

被引：4

作者：

Stykel, Tatjana ^{[1
]}

Vasilyev, Alexander ^{[1
]}

机构：

[1] Univ Augsburg, Inst Math, Univ Str 14, D-86159 Augsburg, Germany

来源：

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS | 2016年 / 297卷

关键词：

Mechanical systems; Moving loads; Model reduction; Least-squares approximation; BALANCED TRUNCATION; 2ND-ORDER SYSTEMS; ORDER REDUCTION; DISCRETIZATION;

D O I：

10.1016/j.cam.2015.11.014

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We consider model order reduction of mechanical systems with moving loads. Such systems have a time-varying input matrix that makes the direct application of standard model reduction methods difficult. In this paper, we present a two-step model reduction approach for systems with moving loads which is based on a low-rank approximation of the input matrix and applying Krylov subspace methods to the resulting linear time invariant system with a modified input. Numerical results demonstrate the properties of the proposed model reduction method. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：85 / 97

页数：13

共 45 条

[21] An improved numerical method for balanced truncation for symmetric second-order systems [J].