경량전철의 승차감 개선을 위한 현가장치의 레이아웃 최적화

초록

This paper presents an optimization of suspension layout of light rail vehicle to improve ride quality. In addition to the suspension spring constant, the suspension layout span between cars is an important parameter affecting the ride quality. For the optimization, a 9-DOF analytical model consisting of 3 car bodies and 3 bogies is developed. Then, a genetic algorithm is applied to find an optimized suspension layout span assuming that the vehicle is running on a tangent track with constant speed.