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本文给出了在结构非线性曲面分析中,求得平衡路径上任一指定荷载水平的新的求解技术──混合累积求解方法。应用这种求解方法,可在跟踪结构非线性屈面平衡路径全过程的任一区段。精确求取任一指定荷载水平的平衡点。该法已应用于薄壳结构的屈面分析之中,数值分析表明本文方法的精确性、可靠性及计算效率。
In this paper, we give a new solution technique—mixed-accumulation method—for finding any given load level on the equilibrium path in the analysis of structural nonlinear surfaces. Applying this method of solving can track any part of the entire process of the structure’s non-linear flexion balance path. Accurately determine the equilibrium point for any given load level. The method has been applied to the analysis of the flexural surface of thin shell structures. Numerical analysis shows the accuracy, reliability and computational efficiency of the method.