This paper is devoted to solving strength and stability problems of a built structure by using the finite element method and the increment method for the geometrical nonlinear structural problem.
本文用有限元素法和对于几何非线性结构问题的增量法求解组合结构强度与稳定性问题。
Accurate geometry! Non linear finite element increment equilibrium equation is set up by two orders theory. Typical structure stability is analyzed with this accurate finite element method.
由二阶理论建立了梁杆结构分析的精确几何非线性有限元增量平衡方程，并利用精确有限元方法对一些典型结构进行了稳定性分析。
Analogy method based on experience is insufficient for complex shape part and Trail-and-error. Only simple finite element increment simulation method is time consuming.
传统的经验类比设计对于复杂拉深件难以奏效，单纯应用有限元增量模拟法进行“试错”耗时多、效率低。
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