板和扁壳大挠度问题摄动参数的最小二乘法选择
Determination of the Perturbation Parameter in Larger Deflection of Plates and Shallow Shells by Means of the Least Squares Method
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摘要: 本文提出了在用摄动法求解板和扁壳轴对称大挠度问题时,确定摄动参数的最小二乘方法.计算了圆板情形的算例,与准确解和其它摄动解做了比较.结果表明,本文解答较其它摄动解有更高的精确度.Abstract: In this paper, the least square method of determination of the perturbation parameter is presented when the perturbation technique is used in the solution of large deflection of axisymmetrical plates and shallow shells. The examples of circular plates are calculated and compared with the exact solution and other perturbation solutions. The results show the best agreement with the exact solution among those perturbation solutions.
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