论文部分内容阅读
为了解决结构的振动噪声及控制问题,提出用能量密度作为变量的有限元分析,并将能量有限元法应用到耦合梁结构中。提出耦合节点和节点单元的处理方法,进一步得到耦合节点矩阵,然后将耦合节点矩阵和单元矩阵结合,运用FORTRAN程序实现结合及计算分析,得出结构中能量分布及能量汇聚点,将结果与解析解比较,得出能量有限元法可以很好的模拟结构中能量分布的结论,为进一步振动控制提供了更有效的依据。
In order to solve the structural vibration noise and control problems, a finite element analysis using energy density as a variable is proposed, and the energy finite element method is applied to the coupled beam structure. The coupled nodes and node elements are processed and the coupled node matrix is obtained. Then, the coupled node matrix and element matrix are combined, the FORTRAN program is used to realize the combination and calculation analysis, and the energy distribution and energy convergence point in the structure are obtained. The result and the analysis By comparison, it is concluded that the energy finite element method can well simulate the energy distribution in the structure, providing a more effective basis for further vibration control.