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29 March 2024
 
  » arxiv » 2004.2586

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Model order reduction of thermo-mechanical models with parametric convective boundary conditions: focus on machine tool
Pablo Hernández-Becerro ; Daniel Spescha ; Konrad Wegener ;
Date 27 Mar 2020
AbstractThis paper presents a parametric Model Order Reduction (MOR) method for weakly coupled thermo-mechanical Finite Element (FE) models of machine tools and other similar mechatronic systems. This work proposes a reduction method, Krylov Modal Subspace (KMS), and a theoretical bound of the reduction error. The developed method addresses the parametric dependency of the convective boundary conditions using the concept of system bilinearization. Additionally, this paper investigates the coupling between the reduced-order thermal system and the mechanical response. A numerical example shows that the reduced-order model captures the response of the original system in the frequency range of interest.
Source arXiv, 2004.2586
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