무소음 가진기를 이용한 자동차 시트의 진동특성 재현 평가

This study is a reproduced vibration performance of vehicle seat using quite excitation system. The noise and vibration that often occurs when driving at different speeds by different road condition. The vibration of road test measure is separate 4point seat mounting and the vehicle out of 2point using accelerometers. The measured time data transfer PSD data for exciter profiles. A quite excitation system operate the vehicle body under the identical condition, road test by PSD data. Compares are a transferred PSD date of a measured vehicle seat and a mesured excitation system. Finally, the reproduced ratio is evauated via the total PSD level.