Structural Engineering and Mechanics

  • 제53권2호
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  • Pages.373-392
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  • 2015
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Structural joint modeling and identification: numerical and experimental investigation

  • Ingole, Sanjay B. (Government Polytechnic) ;
  • Chatterjee, Animesh (Visvesvaraya National Institute of Technology)
  • 투고 : 2013.01.26
  • 심사 : 2014.11.25
  • 발행 : 2015.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present work, structural joints have been modeled as a pair of translational and rotational springs and frequency equation of the overall system has been developed using sub-structure synthesis. It is shown that using first few natural frequencies of the system, one can obtain a set of over-determined system of equations involving the unknown stiffness parameters. Method of multi-linear regression is then applied to obtain the best estimate of the unknown stiffness parameters. The estimation procedure has been developed first for a two parameter joint model and then for a three parameter model, in which cross coupling terms are also included. Two cases of structural connections have been considered, first with a cantilever beam with support flexibility and then a pair of beams connected through lap joint. The validity of the proposed method is demonstrated through numerical simulation and by experimentation.

키워드

참고문헌

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