실차측정과 모델링을 이용한 자동차 현가시스템의 동적하중 결정 방법론에 관한 연구

To design suspension system and estimate its durability, the loading history of each suspension part exposed to various operation conditions should be known from either measurements or computations. Based on these results, stress analysis is carried out to obtain the optimal shape and to reduce the production cost through the proper selection of manufacturing processes. In this paper, first the measurements of 3-directional accelerations of wheel center using an accelerometer are undertaken from a vehicle running on Belgian road. Then the data measured from experiments are pre-processed with filtering. Based on the pre-processed data the methodology for determining the dynamic loadings to each suspension part is developed by simply modeling the suspension system with ADAMS software. Eventually, it is expected that dynamic loadings can be used for the dynamic stress and fatigue analyses.