振动仿真分析网络交换设备加固设计

摘要

The network switching equipment are strengthened vibration design,and using AN-SYS simulation analysis for vibration aided design of products,to shorten the product development cycle,reduce the design cost.By reasonably simpli-fying the network switching equipment,established the finite element calculation of network exchange equipment by using ANSYS,were obtained by the network switching module PCB under impact vi-bration of the stress and the displacement response curve.Processing function by ANSYS finite ele-ment analysis,get maximum stretching vibration i-solator and the components the maximum displace-ment and maximum equivalent device structure should yield strength and material is also far,no plastic deformation,verified the rationality of the structure design.Provides some theoretical refer-ences for the anti vibration design of network switching equipment.%对网络交换设备进行了二次加固减振设计，同时利用 ANSYS 仿真分析对产品进行减振辅助设计，以缩短产品开发周期，降低设计成本。通过对网络交换设备进行合理简化，建立了其有限元网格模型。利用 ANSYS 对网络交换设备进行振动冲击有限元计算，分别获取了网络交换模块印制板在冲击振动下的应力及位移响应曲线。通过 ANSYS有限元分析的后处理功能，得到隔振器的最大伸长量以及各部件最大位移量和最大等效应力值。结果表明，隔振器的伸长量在额定范围之内，设备结构的最大等效应力与材料的屈服强度还相差甚远，结构没有产生塑性变形，验证了结构设计的合理性。为网络交换设备的抗振动冲击设计提供了一定的理论参考依据。