구동계를 고려한 엔진 마운트의 다분야 통합 최적설계

This paper discusses a multidisciplinary design optimization of the engine mounting system to improve the ride quality of a vehicle and to remove the possibility of the resonance between the powertrain system and ve­hicle systems. The driveline model attempts to support engine mount development by providing sufficient detail for design modification assessment in a modeling environment. Design variables used in this study are the loca­tions, the angles and the stiffness of an engine mount system. The goal of the optimization is both deeoupling the roll mode of a powertrain and minimizing the vibration transmitted to the vehicle including the powertrain, simul­taneously. By applying forced vibration analysis for vehicle systems and mode decouple analysis for the engine mount system, it is shown that improved optimization result is obtained.