CAJ | 학술논문

介绍了模态试验的相关理论、方法。利用频率响应分析方法，对车辆 B 柱、ECU 处进行模态锤击试验。分析了 B 柱、ECU 处等的动刚度曲线，确定了加速度传感器在车辆碰撞试验中的安装位置。并通过正面碰撞试验分析不同位置加速度传感器采集数据的有效性，进一步确定 B 柱下部靠近门槛处及 ECU 处为加速度传感器的合理安装位置。
개소료모태시험적상관이론、방법。이용빈솔향응분석방법，대차량 B 주、ECU 처진행모태추격시험。분석료 B 주、ECU 처등적동강도곡선，학정료가속도전감기재차량팽당시험중적안장위치。병통과정면팽당시험분석불동위치가속도전감기채집수거적유효성，진일보학정 B 주하부고근문함처급 ECU 처위가속도전감기적합리안장위치。
The theories and methods of modal test were investigated. The modal hammer measurement was carried out on vehicle B-pillar and ECU by using frequency response analysis method. The dy-namic stiffness curve on B-pillar and ECU Department and so on were analyzed. And the location of the acceleration sensor mounted in a vehicle crash test was determined. Analysis of the effectiveness of accelerometer data collection in different locations was processed through frontal crash test,and a rea-sonable accelerometer mounting location of lower of B-pillar near the door and ECU was further deter-mined.