유한 요소법을 이용한 Semi-Trailer의 주행진동 해석

Transportation vibration of semi-trailer has been investgated numerically using the finite element method. Main objective is to obtain the acceleration level in the military semi-trailer which transports electronic equipment. To do so, the transient characteristics in time domain and the random vibration in frequency domain were analyzed using MSC/NASTRAN program. The maximum and the root mean square values of acceleration in semi-trailer were predicted, showing the effect of various stiffness and damping coefficients of suspension and king-pin.