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本文从双曲抛物面壳体的曲面可由直线移动而形成的特点,导出壳体内力的分析方法。为了便于实际应用,并利用级数的周期变化规律,提出了简捷的计算方法,改进了级数收敛缓慢的缺点。此外还附以计算实例,比较了用差分法及用导出的公式计算内力的结果,说明用差分法计算能较好地反映出预设的边界条件。最后简单介绍了实物的强度试验结果。
In this paper, the analysis method of the internal force of the shell is derived from the characteristics that the surface of the hyperbolic paraboloid shell can be formed by the linear movement. In order to facilitate the practical application and make use of the periodic variation law of the series, a simple calculation method is proposed to improve the shortcomings of slow convergence of the series. In addition, an example of calculation is also attached, and the results of calculating the internal force using the difference method and the derived formula are compared, indicating that the calculation of the difference method can better reflect the preset boundary conditions. Finally, the physical strength test results are briefly introduced.