机载电子设备减振设计

针对外界振动影响机载设备正常工作和疲劳破坏等问题，给出了一种机载设备减振器设计方法。利用振动试验数据和受迫振动理论，建立等效减振系统模型，设计了两组金属丝网三向等刚度减振器，并对减振器的减振效果进行实验检验。结果表明，设计的两组减振器均能够降低机载电子设备的振动，而第二组减振器的减振性能优于第一组减振器的性能，验证了减振器设计方法的有效性，提高了机载导航系统性能和机载设备的使用寿命。

Damping Design of Onboard Electronic Equipment

As to the issue of onboard equipment’s poor performance and fatigue damage caused by vibration, a method is proposed to design vibration damper. According to experiment data and forced vibration theory, a model of equivalent vibration damper is established, and two groups of metallic wire mesh vibration damper are designed, and some experiments are used to test vibration dampers performance. The experimental results show that the two group of vibration damper can weaken onboard electronic equipment vibration, and the second group damper’s performances are superior to the first ones. This verifies that the vibration damper method is reasonable, and it can improve system performance and the life of the onboard equipment.