卷积型伽辽金法求解任意边界梁的动力学问题

THE CALCULATION OF THE DYNAMIC PROBLEM OF A BEAM WITH ARBITRARY BOUNDARY CONDITIONS BY METHOD OF CONVOLUTION-TYPE GALERKIN METHOD

  • 摘要: 通过选取时间上采用级数形式,空间上采用梁振型函数的试函数,推导出求解任意边界条件梁的卷积型伽辽金法. 计算了两端固定梁的动力问题,算例表明,方法计算精度高,计算工作量少,是计算结构动力学问题的一种有效方法.

     

    Abstract: The convolution-type Galerkin method is proposed to calculate a beam with arbitraryboundary conditions by using a series function in time domain andthe mode shape function of the beam in space domain. The example of the beamwith its both ends cramped is calculated and it is shownthat highly accurate results can be obtained. The approach is worthfurther investigation and extension.

     

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