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本文采用能量法导出了均布外压下椭圆截面柱壳弹性屈曲临界压力计算公式,由于使用了一个衰减因子e~(-kφ),大大简化了这类壳体临界压力的计算;对于截面曲率半径的处理,也是简单而有效的.文中还介绍了若干机械加工钢模的试验资料.
In this paper, the formula for calculating the critical elastic buckling pressure of an elliptic cylindrical shell under uniformly distributed external pressure is derived by energy method. Because an attenuation factor e~(-kφ) is used, the critical pressure of this type of shell is greatly simplified. The processing of radius is also simple and effective. The paper also introduces the test data of several machining steel molds.