【摘要】 通过对蜂窝芯的等效化处理,建立了ANSYS的壳单元模型,并作有限元模态分析,然后与其试验模态分析结果比较,有限元分析结果和试验结果基本一致。通过ANSYS的PSD随机功率谱分析和模态分析所得振型确定了贴片位置,对蜂窝板进行了压电智能结构振动主动控制试验研究,得到了较好的振动抑制效果。分析结果为仪器安装蜂窝板的设计和实现智能结构控制提供了重要参考依据。更多还原

【Abstract】 The finite element model of honeycomb plates is established with ANSYS software,where the honeycomb core plate is regarded as a equivalently homogenic with the same size.Comparatively,the modal analysis results are coincident between the finite element model and the experimental model.In the vibration active control experiment,the gluing location of piezoelectric actuator is defined with the results of random power spectrum density(PSD) analysis and the modal shapes of the finite element modal analysis to demonstrate the vibration restraining effectiveness.The conclution proposes suggestions for honeycomb plates’ design and smart structure control.更多还原