倍频程准则在星载电子设备结构设计中的应用

在星载电子设备的结构设计中，一般采取局部加强结构刚度来减小其响应，但对有些结构此方法效果并不理想。为减小某单机中关键部件的加速度响应，通过倍频程准则对结构进行优化设计，通过合理弱化支架刚度来降低核心部件的响应。仿真结果表明在弱化某些结构部件的情况下，使得谐振器的加速度响应降低了29%，效果明显。通过弱化非核心部件来减小核心部件的响应，有别于常规的增加整体结构刚度来减小响应，对后续电子设备的优化设计具有一定的指导意义。

Application of octave rule in structural design of spaceborne electronic equipment

In the structural design of electronic equipment, the partial enhancement is usually used to increase local stiffness and decrease acceleration response. But sometimes, this measure does not work well. To reduce the acceleration response of key components in a structural, in this paper, the structure has been optimized by the octave rule, Reduce the response of core components by reasonably weakening the stiffness of the bracket. As a result, the acceleration responses of the resonator have been reduced by 29% under the condition of weakening some structural components. In this paper, the response of the core component is reduced by weakening the non-core component, which is different from the conventional increase in the overall structural stiffness to reduce the response, which is of some guiding significance to the optimization design of electronic equipment.