Structure-Preserving Model Reduction for Dissipative Mechanical Systems

Structure-Preserving Model Reduction for Dissipative Mechanical Systems
复制标题

耗散机械系统的结构保持模型简化

DOI:
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发表时间:
2020
期刊:
arXiv.org
影响因子:
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通讯作者:
Steffen W. R. Werner
Steffen W. R. Werner
中科院分区:
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文献类型:
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作者:
Rebekka S. Beddig;P. Benner;Ines Dorschky;Timo Reis;Paul Schwerdtner;M. Voigt;Steffen W. R. Werner

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抑制机械模型中的振动,通常由二阶动力系统描述,即使在今天,在计算资源方面也是机械工程中具有挑战性的任务。一种补救方法是结构保持模型降阶,以构造易于评估的代理具有相同结构的原始动力系统。在我们的工作中,我们提出了一个概述,我们最近开发的二阶系统的结构保持模型降阶方法。这些方法是基于模态和平衡截断在不同的变量,以及有理插值。数值例子来说明所有描述的方法的有效性。
Suppressing vibrations in mechanical models, usually described by second-order dynamical systems, is a challenging task in mechanical engineering in terms of computational resources even nowadays. One remedy is structure-preserving model order reduction to construct easy-to-evaluate surrogates for the original dynamical system having the same structure. In our work, we present an overview of our recently developed structure-preserving model reduction methods for second-order systems. These methods are based on modal and balanced truncation in different variants, as well as on rational interpolation. Numerical examples are used to illustrate the effectiveness of all described methods.
DOI: 10.1007/s10444-021-09863-w
发表时间: 2021
影响因子: 1.7
作者:
Benner, Peter;Gugercin, Serkan;Werner, Steffen W.
通讯作者: Werner, Steffen W.