Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Eigenvalue and Frequency Response Analyses of a Hard Disk Drive Actuator Using Reduced Finite Element Models

축소된 유한요소모델을 이용한 하드디스크 구동부의 고유치 및 주파수응답 해석

  • 한정삼 (안동대학교 기계공학부)
  • Published : 2007.05.01
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Abstract

In the case of control for mechanical 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 state variables, while still providing an accurate model. The reduced mechanical model can then be inserted into the complete system models and used for extended system-level dynamic simulation. In this paper, moment-matching based model order reductions (MOR) using Krylov subspaces, which reduce the number of degrees of freedom of an original finite element model via the Arnoldi process, are presented to study the eigenvalue and frequency response problems of a HDD actuator and suspension system.

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References

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  2. Frequency Response Analysis of Array-Type MEMS Resonators by Model Order Reduction Using Krylov Subspace Method vol.33, pp.9, 2009, https://doi.org/10.3795/KSME-A.2009.33.9.878
  3. Efficient Modal Analysis of Prestressed Structures via Model Order Reduction vol.35, pp.10, 2011, https://doi.org/10.3795/KSME-A.2011.35.10.1211