电子器件隔振设计实验研究

为了使精密电子产品在恶劣的环境下能够正常工作,必须对其采用适当的隔振措施。本文对某电子器件的三种不同隔振设计进行了试验研究,重点对比了不同设计在随机振动、正弦扫频振动环境下的隔振性能。试验结果表明,钢丝绳隔振器具有强的非线性特性,不同设计的隔振效果差异非常明显。采用阻尼板的设计方案,虽然隔振效果较好,但其加工难度较大,对使用环境要求较高。采用钢丝绳隔振器加铝质仪表板的设计方案,隔振效果较好,但由此带来其它的相关问题需要设计人员权衡考虑。

A Experimental Study on Isolation Design of Electronic Equipment

To make the exact electronic instruments working normally in atrocious environment,proper isolator measure should be taken.In this paper,three different kinds of isolation designs were studied by experiments.The main point was put on the isolation capability of different designs under the conditions of stochastic vibration and sine sweep.Experimental results show that the differences between the isolation effect of different designs are very clear.The nonlinear character of wire rope isolator is very strong.The first order resonance frequency would decrease clearly if the excitation increases.When the wire rope isolator is used,the vibration isolation effect is very good.However,other concomitant problems should be considered by the deviser.