激振器支承弹簧板的动态优化设计

Dynamic optimized design of the shaker's supporting spring plate

以E型电动式激振器为基础,为抑制激振器工作频宽内的尖峰及减小对被测试件的附加刚度,对激振器的支撑弹簧板采用由碳纤维/树脂基(T300/QY8911)组成的复合材料层合板结构,并以铺层角和铺层厚度作为设计变量对其进行动态优化设计,结果表明,采用优化后的复合材料层合板结构的激振器,保证了激振器的低频性能,且有效地抑制了工作频宽内的尖峰。

This study is based on E-model electrodynamic shaker. To eliminate the peaks appeared in the frequency range and minimize additional stiffness on the evaluated objects this paper adopted carbon fiber/resin matrix （T300/QY8911） composites to improve the shaker＇s supporting spring plate and carried out dynamic optimized design using ply orientation and ply thickness as the design variables. The result shows that the optimized supporting spring plate ensures low frequency property of the shaker and effectively reduces peaks in the frequency range.