倍频程准则在某电子设备抗振动结构设计中的应用

摘要

介绍了电子设备抗振结构设计中常用的倍频程准则，通过有限元仿真方法讨论了该准则在电子设备结构抗振动设计中的有效性。仿真结果表明当电子设备机箱和内部模块符合倍频程准则的情况下，模块印制板上将会很有效地避免动态耦合带来的加速度放大现象，可以提高印制板上器件的寿命。%This paper introduces the octave rule commonly used in the anti-vibration design of electronic equipment. Finite element simulation method is used to analyze the effectiveness of the octave rule in the electronic equipment structure design. The simulation result shows that ,when the electronic equipment chassis and PCB can meet octave rule ,severe acceleration amplification phenomenon caused by dynamic coupling would be avoided ,this is very useful for improving the service life of components on PCB.