Before and after the strengthening, nonlinear FEM analysis and on-site experiments were implemented, which verified the rationality of the strengthening scheme and the effect of the strengthening.
为了论证加固方案的合理性，验证加固效果，本文还进行了加固前后的非线性有限元对比计算分析和现场对比试验。
The time-stepping FEM model for the dynamic analysis of power system is established considering the nonlinear characteristics of internal generators and typology structures of external circuit.
建立了既考虑发电机内部非线性又考虑外部电路拓扑结构的用于系统动态分析的时步有限元模型。
Basic theory of nonlinear FEM analysis and its realization in ANSYS were studied. Accomplish stability analysis of high arch dam abutment based on nonlinear FEM analysis.
因此对大型结构分析软件ANSYS的三维非线性计算功能进行了深入研究，在此基础上完成了基于非线性有限单元法的高拱坝坝肩稳定计算分析。
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