某机载雷达舱外设备振动冲击试验夹具设计

The Shock and Vibration Test Fixture Design of Airborne Radar Equipment

为了合理地设计符合振动冲击环境试验要求的夹具,根据某机载雷达舱外设备振动冲击试验条件及有关振动环境试验夹具设计规范,对该雷达舱外设备振动冲击试验夹具进行了结构动力特性设计。振动冲击试验表明:夹具的动态特性满足了振动冲击环境试验夹具设计的要求。某机载雷达舱外设备振动试验时,加速度谱密度值的控制误差明显小于±3dB,完全符合有关振动环境试验规范的要求,冲击试验控制精度也满足试验标准要求。因此,该夹具设计是成功的。

In order to properly design the fixture of shock and vibration environmental testing,the structural dynamic characteristics design was made according to the test conditions of an airborne radar equipment shock and vibration and the vibration test fixture design criterion.Vibration and shock test showed that the dynamic nature of fixtures met the fixture design requirements of the shock and vibration environmental testing.During the airborne radar vibration test,the PSD value of control error is smaller than...