nonlinear fem of dynamic analysis

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。

By using ANN and its powerful nonlinear mapping ability and combining production of FEM dynamic analysis, a new way to predicting terrane crack depth of complex fire hole is offered.

以神经网络为基本工具，利用其强大的非线性映射能力，并结合有限元法动力分析成果，为预测在复合射孔条件下岩层裂缝扩展深度提供了一条新的途径。

Based on the former work, dynamic FEM analysis is made on the dynamic properties of the longest-span concrete cable-stayed bridge in Asia with geometric nonlinear effects considered.

通过研究斜拉桥模态试验的特点，首次提出了在两点移动测点法的基础上，利用梁模型振型函数优化峰值拾取法的模态参数，取得了理想的效果。