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http://dx.doi.org/10.12989/sem.2014.52.1.205

A modified multidisciplinary feasible formulation for MDO using integrated coupled approximate models  

Choi, Eun-Ho (School of Mechanical Engineering, Pusan National University)
Cho, Jin-Rae (School of Mechanical Engineering, Pusan National University)
Lim, O-Kaung (School of Mechanical Engineering, Pusan National University)
Publication Information
Structural Engineering and Mechanics / v.52, no.1, 2014 , pp. 205-220 More about this Journal
Abstract
This paper is concerned with the modification of multidisciplinary feasible formulation for MDO problems using the integrated coupled approximate models. A drawback of conventional MDFs is the numerical difficulty in decomposing the design variables and deriving the coupled equations of state. To overcome such a drawback of conventional methods, the coupling in analysis and design is resolved by approximating the state variables in each discipline by the response surface method and by modifying the optimization formulation using the corresponding integrated coupled approximate models. The validity, reliability and effectiveness of the proposed method are illustrated and verified through two optimization problems, a mathematical MDF problem and the multidisciplinary optimum design of suspension unit of wheeled armored vehicle.
Keywords
multidisciplinary design optimization (MDO); successive iterative design; Integrated coupled approximate model; response surface method; wheeled armored vehicle;
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Times Cited By KSCI : 1  (Citation Analysis)
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