高等均值法是在隐式极限状态函数下计算结构可靠性的有效方法。

Advanced mean value method is an efficient method in reliability analysis under the condition of implicit limited state functions.

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文中给出了流函数方程及边界条件的坐标转换形式和离散格式，采用了强隐式(SIP)迭代法，分别对具有弓形和半弓形突体的直管进行了计算。

In this paper, the transformed forms of the flow function equation and boundary conditions and their difference expressions are given, and Strongly Implicit Procedure (SIP) iteration is used.

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