Nonlinear Moment Matching for the Simulation-Free Reduction of Structural Systems

被引：5

作者：

Varona, Maria Cruz ^{[1
]}

Schneucker, Nico ^{[1
]}

Lohmann, Boris ^{[1
]}

机构：

[1] Tech Univ Munich, Chair Automat Control, Boltzmannstr 15, D-85748 Garching, Germany

来源：

IFAC PAPERSONLINE | 2019年 / 52卷 / 16期

关键词：

Model Order Reduction; Nonlinear Structural Dynamics; Steady-State Response; MODEL-REDUCTION;

D O I：

10.1016/j.ifacol.2019.11.801

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper transfers the concept of moment matching to nonlinear structural systems and further provides a simulation-free reduction scheme for such nonlinear second-order models. After first presenting the steady-state interpretation of linear moment matching, we then extend this reduction concept to the nonlinear second-order case based on Astolfi [2010]. Then, similar simplifications as in Cruz Varona et al. [2019a] are proposed to achieve a simulation-free nonlinear moment matching algorithm. A discussion on the simplifications and their limitations is presented, as well as a numerical example which illustrates the efficiency of the algorithm. (C) 2019, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

引用

页码：328 / 333

页数：6

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