차량 전륜 서스펜션 구성 부품의 동특성 분석

Recently, As an advanced technology is applied to the vehicle, a smoother driving with less vibration and noise is desired. As a result, the structure-borne noise of the vehicle becomes important in the vehicle industry because the reduction of the structure-borne noise improves the stability of vehicle. The structure-borne noise takes place when excitation force of tire passes the vehicle structure such as front suspension, rear suspension, chassis, body. Its range is commonly from 0 Hz to 500 Hz. In order to reduce the structure-borne noise of the vehicle, we need to analyze the dynamic characteristics of the front suspension which is one of the major course of the structure-borne noise. So we practice a modal experiment and a modal analysis with regard to the components of the front suspension. Finally, we confirm the dynamic characteristics of the components of the vehicle front suspension such as knuckle, disk, lower arm, bearing, strut – damper in this paper. These results are significantly useful to get the analysis models which are small part of the front suspension and proceed the transient analysis of the whole front suspension.