Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 20 Issue 12
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- Pages.3804-3821
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- 1996
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
A Development of Two-Point Reciprocal Quadratic Approximation Mehtod for Configuration Optimization of Discrete Structures
불연속구조물의 배치최적설계를 위한 이점역이차근사법의 개발
- Park, Yeong-Seon (Technology Center, Daewoo Motor) ;
- Im, Jae-Mun (Dept. of Mechanical Design, Graduate School of Hanyang University) ;
- Yang, Cheol-Ho (Kia Motors ) ;
- Park, Gyeong-Jin (Dept. of Mechanical Engineering, Hanyang University)
- Published : 1996.12.01
Abstract
The configuration optimization is a structural optimization method which includes the coordinates of a structure as well as the sectional properties in the design variable set. Effective reduction of the weight of discrete structures can be obrained by changing the geometry while satisfying stress, Ei;er bickling, displacement, and frequency constraints, etc. However, the nonlinearity due to the configuration variables may cause the difficulties of the convergence and expensive computational cost. An efficient approximation method for the configuration optimization has been developed to overcome the difficulties. The method approximates the constraint functions based onthe second-order Taylor series expansion with reciprocal design variables. The Hessian matrix is approzimated from the information on previous design points. The developed algotithms are coded and the examples are solved.
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