将非线性有限元理论应用于机车受电弓弓头弹簧系统的研究。
A nonlinear finite element method was applied in the research of the collector head spring system of pantograph.
根据弹塑性有限元理论，建立了膨胀套管和膨胀心头的力学模型。
The mechanical models for bulged casing and expandable body are set up based on elastoplastic finite element theory.
以随机有限元理论为基础，将框剪结构的刚度、质量、阻尼等结构参数为随机变量。
Based on the theory of stochastic finite element, the structural parameters of frame shear structure including stiffness and mass and damping are simulated to be stochastic variables.
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