Structural Engineering and Mechanics

  • 제8권2호
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  • Pages.181-191
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  • 1999
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mode localization and frequency loci veering in an aircraft with external stores

  • Liu, J.K. (Department of Mechanics, Zhongshan University) ;
  • Chan, H.C. (Department of Civil Engineering, The University of Hong Kong)
  • 발행 : 1999.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents an investigation of the mode localization and frequency loci veering phenomena in an aircraft with disordered external stores. Two theoretical analyses are carried out to study the occurring mechanism of the two phenomena: condensation technique in the subspace spanned by modes of interest and geometric mapping theory in the complex plane. Two simple criteria for predicting the occurrence of the mode localization and frequency loci veering are put forward. The prediction of the phenomena by our theoretically proposed criteria is in good agreement with that obtained through numerical calculations of characteristic solutions of the disordered system.

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참고문헌

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피인용 문헌

  1. Mode localization and veering of natural frequency loci in two circular plates coupled with a fluid vol.22, pp.6, 2006, https://doi.org/10.12989/sem.2006.22.6.719