Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Updating of Finite Element Model and Joint Identification with Frequency Response Function

주파수응답함수를 이용한 유한요소모델의 개선 및 결합부 동정

  • 서상훈 (현대자동차, 승용제품개발 2연구소) ;
  • 지태한 (현대자동차, 승용제품개발 2연구소) ;
  • 박영필 (연세대학교 공과대학기계공학과)
  • Published : 1997.02.01
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Abstract

Despite of the development in the finite element method, it is difficult to get the finite element model describing the dynamic characteristics of the complex structure exactly. Therefore a number of different methods have been developed in order to update the finite element model of a structure using vibration test data. This paper outlines the basic formulation for the frequency response function based updating method. One important advantage of this method is that the intermediate step of performing an eigensolution extraction is unnecessary. Using simulated experimental data, studies are conducted in the case of 10 DOF discrete system. The solution of noisy and incomplete experimental data is discussed. True measured frequency response function data are used for updating the finite element model of a beam and a plate. Its applicability to the joint identification is also considered.

Keywords

References

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