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Optimal Design of the Steel Wheel's Disc Hole Using Approximation Function  

임오강 (부산대학교 기계설계공학과)
유완석 (부산대학교 기계설계공학과)
김우현 (부산대학교 기계설계공학과)
조재승 (부산대학교 기계설계공학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.16, no.1, 2003 , pp. 105-111 More about this Journal
Abstract
Wheel for passenger car support the car weight with tires, and they transmit rolling and braking power into the ground. Whittling away at wheel weight is more effective to boost fuel economy than lighting vehicle body structure. A shape of hole in disk is optimized for minimizing the weight of steel wheel. Pro/ENGINEER program is used for formulating the design model, and ANSYS package is selected for analyzing the design model. It has difficulties to interface these commercial software directly. For Combining both programs, response surface methodology is applied to construct approximation functions for maximum stresses and maximum displacements are obtained by full factorial design of five levels. This steel wheel is modeled in 14-inch diameter of rim, and wide parameter of hole in disk is only selected as design variable for reducing the weight of steel whee. PLBA(Pshenichny-Lim-Belegundu-Arora) algorithm, which used the second-order information in the direction finding problem and uses the active set strategy, is used for solving optimization problems.
Keywords
response surface methodology; full factorial design; disc hole; optimal design; steel wheel;
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