In this paper, a method of reducing the weight of vehicle wheels through topology optimization by finite element method is proposed. Recently, various environmental pollution caused by the operation of vehicles is gradually increasing, and this has a great correlation with the fuel efficiency of the vehicle. Therefore, it is required to reduce the weight of the vehicle to increase fuel efficiency. Among them, the vehicle's wheels are a key part of vehicle acceleration and braking, and passenger safety. Because the shape of the wheels is different, various effects such as reduced fuel economy and reduced airpower occur as well as aesthetic factors. The stiffness of the wheels plays an important role in transmitting the vehicle's power to the tires and braking. In this study, to reduce weight while satisfying the stiffness value, we propose to use topology optimization to design an arbitrary shape according to the number of spokes on the wheel.
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ABSTRACT 1. 서론 2. 휠 형상 모델링 3. 유한요소 해석 및 위상최적화 설계 3.1 유한요소 해석 3.2 Ansys 프로그램에 의한 위상최적화 3.3 모델 재설계 4. 해석결과 4.1 목표 질량 비교 4.2 유한요소법에 의한 구조해석 결과 4.3 원래 기본모델과 재설계 모델의 안전계수 5. 결론 후기 References