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전진무(Jinmoo Jeon),민경휘(Gyeonghwi Min),김여정(Yeojeong Kim),김동현(Donghyun Kim) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
The knuckle of the in-wheel system functions as a knuckle of the conventional vehicle and a housing for supporting the reducer and the motor. In-wheel knuckle should maintain rigidity against deformation by the motor and reducer during inwheel operation in order to ensure NVH performance, also in order to secure the vehicle R&H performance, it should be designed to support load from wheel, secure stiffness and reduce the unsprung mass. In this thesis, we performed the lightweight of knuckle in in-wheel system with motor and reducer by using topology optimization. After the optimization, we verified the static strength and stiffness analysis through finite element analysis and compared the transmission error through the gear analysis program and then we could check the effectiveness of the lightweight design. As a result of comparison between before and after, we confirmed stiffness securement and weight reduction.
인휠 유성 감속기 베어링 지지구조 변경에 따른 진동 저감에 관한 연구
민경휘(Gyeonghwi Min),신경호(Gyoungho Shin),전진무(Jinmoo Jeon),박소희(Sohee Park),김동현(Donghyun Kim) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
In this paper, supporting structure of the planetary carrier in in-wheel system is changed to reduce vibration. As vibration is related to gearbox transmission error, enhanced carrier supporting structure proved by RomaxDESIGNER which is geartrain design and analysis program is suggested. New structure has lower gearbox transmission error than before. It is also proved by simulator composed of dynamo motor, power supply, in wheel motor controller for evaluating NVH inwheel module. As a result of comparing before and after, vibration which is from improvement structure is decreased in planetary gear system