安装蜂窝板动力学特性分析及主动控制试验研究

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。     

Novel Formalism for Energy Eigenvalue Problem with Hamiltonian Expressible as Function of Angular Mometum

We present a novel formalism for energy eigenvalue problems when the corresponding Hamiltonians can be expressed as a function of an angular momentum.The problems are turned into finding operator polynomials by solving a c-number differential equation.Simple and efficient computer-aided analytical and numerical methods may e developed based on the formalism.