소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

주파수응답함수를 이용한 유한요소모델의 개선 및 결합부 동정

Updating of Finite Element Model and Joint Identification with Frequency Response Function

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

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.

키워드

참고문헌

  1. Journal of Sound and Vibration v.167 no.2 Model Updating in Structural Dynamics : A Survey Mottershead, J. E.;Friswell, M. I.
  2. Proceedings of IMAC v.5 A Complete Procedure for the Adjustment of a Mathematical Model from Identified Complex Modes Zhang, Q.;Lallement, G.;Fillod, R.;Piranda, J.
  3. International Semainar on Modal Analysis v.15 Model Updating Using FRF Data Lin, R. M.;Ewins, D. J.
  4. Proceedings of IMAC v.9 A Technique to update Finite Elements Models Using Frequency Response Function Visser, W. J.;Imregun, M.
  5. 한국소음진동공학회지 v.4 no.2 주파수응답함수의 변화를 이용한 기계적 결합부의 동특성 파라미터 해석 강성구;지태한;유원희;박영필
  6. 한국소음진동공학회 추계학술대회논문집 볼트 결합부의 동적 파라미터 해석 백성남;지태한;박영필
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  8. Linear Algebra and Its Applications Strang, G.
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  11. Proceedings of IMAC v.8 A Comparison of Test-Analysis Model Reduction Methods Freed, A. M.;Flangan, C. C.
  12. Modal Analysis Theory and Testing Heylen, W.;Lammens, S.;Sas, P.
  13. Proceedings of IMAC v.12 The Selection of Updating Frequencies and the Choice of A Damping Approach for Model Updating Procedures using Experimental Frequency Response Functions Lammens, S.;Heylen, W.;Sas, P.