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http://dx.doi.org/10.5139/JKSAS.2008.36.5.438

Reliability Based Design Optimization using Moving Least Squares  

Park, Jang-Won (한국항공대학교 대학원)
Lee, Oh-Young (한국항공대학교 대학원)
Im, Jong-Bin (한국항공대학교 대학원)
Lee, Soo-Yong (한국항공대학교 항공우주 및 기계공학부)
Park, Jung-Sun (한국항공대학교 항공우주 및 기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.5, 2008 , pp. 438-447 More about this Journal
Abstract
This study is focused on reliability based design optimization (RBDO) using moving least squares. A response surface is used to derive a limit-state equation for reliability based design optimization. Response surface method (RSM) with least square method (LSM) or Kriging will be used as a response surface. RSM is fast to make the response surface. On the other hand, RSM has disadvantage to make the response surface of nonlinear equation. Kriging can make the response surface in nonlinear equation precisely but needs considerable amount of computations. The moving least square method (MLSM) is made of both methods (RSM with LSM+Kriging). Numerical results by MLSM are compared with those by LMS in Rosenbrock function and six-hump carmel back function. The RBDO of engine duct of smart UAV is pursued in this paper. It is proved that RBDO is useful tool for aerospace structural optimal design problems.
Keywords
Moving Least Squares Method; Reliability Based Design Optimization; Response Surface Method;
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Times Cited By KSCI : 1  (Citation Analysis)
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