无单元法分析薄板自由振动问题

ANALYSIS OF FREE VIBRATION OF THIN PLATES BY THE ELEMENT-FREE METHOD

  • 摘要: 提出了分析四边简支和四边固定薄板自由振动问题的无单元法,推导了无单元法的插值函数,从变分原理出发导出薄板自由振动的质量矩阵和刚度矩阵,编制了相应的计算程序,通过计算实例与其它方法的结果进行比较.数值结果表明无单元法具有一系列优点

     

    Abstract: The element-free method for the vibration of simply supported and fixed end thin plates is presented in this paper. The shape function ofthe element-free method is introduced. The mass and stiffmatrices for the free vibration of plates are derived by using the variationalprinciple. Numerical examples are given and compared with othermethods. It shows that this method has a number of advantages.

     

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