• Title/Summary/Keyword: 크리로프부공간

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Automation of Krylov Subspace Model Order Reduction for Transient Response Analysis with Multiple Loading (다중 하중 과도응답해석 과정에 대한 크리로프 부공간 모델차수축소법의 자동화)

  • Han, Jeong Sam;Kim, Seung Hyun
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.34 no.2
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    • pp.101-111
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    • 2021
  • In general, several computational resources are required to perform multiple-loading transient response analyses. In this paper, we present the procedure for multiple-loading transient response analysis using the Krylov subspace model order reduction and Newmark's time integration scheme. We utilized ANSYS MAPDL, Python, and ANSYS ACT to automate the transient response analysis procedure in the ANSYS Workbench environment and studied several engineering numerical examples to demonstrate the feasibility and efficiency of the proposed approach.

Generation and Analysis of Reduced Vibration Models for a HDD Actuator and Suspension System (HDD 용 구동 및 현가 장치의 축소 진동 모델의 생성 및 해석)

  • Han Jeong-Sam
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.121-122
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    • 2006
  • In the case of mechanical control systems, it is highly useful to be able to provide a compact model of the mechanical system to control engineers using the smallest number of variables, while still providing an accurate model. The reduced mechanical model can then be inserted into the complete mechanical control system models and used for system-level dynamic simulation. In this paper, a moment-matching based model order reduction (MOR) which reduces the number of degrees of freedom of an original finite element model via the Arnoldi process is considered to study the dynamic responses of a HDD actuator and suspension system.

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