대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제20권12호
- /
- Pages.3782-3791
- /
- 1996
- /
- 1226-4873(pISSN)
- /
- 2288-5226(eISSN)
DOI QR Code
부분구조응답함수감소법을 이용한 동적구조변경
Structural Dynamic Modification Using substructure Response Function Sensitivity Method(SRFSM)
- Ji, Tae-Han (Hyundai Mortor) ;
-
Park, Yeong-Pil
(Hyundai Mortor)
- 발행 : 1996.12.01
초록
A great deal of effert has been invested in upgrading the performance and the efficiency of mechanical structures. Using experimental modal analysis(EMA) or finite element analysis(FEA) data of mechanical structures, this performance and efficiency can be effectively evaluated. In order to analyze complex structures such as automobiles and aircraft, for the sake of computing efficiency, the dynamic substructuring techniques that allow to predict the dynamic behavior of a structure based on that of the composing structures, are widely used. By llinking a modal model obtained from EMA and an analytical model obtained from FEA, the best conditioned structures can be desinged. In this paper, a new algorithm for structural dynamic modification-SRFSM (substructure response function sensitivity method) is proposed by linking frequency responce function synthesis and response function sensitivity. A mehtod to obtain response function sensitivity using direct derivative of mechanical impedance, is also used.
키워드