对桥梁承载力演变理论的应用体系建立了相应的系统框格，为承载力实用分析计算和系统程序编制提供了实施途径。
Corresponding to the bridge carrying-capacity changing theory, the application frame system is set up in the paper to provide the carrying capacity calculation and programming with guiding ways.
石油井架的固有频率随所受荷载的变化而变化这一特性，是建立石油井架承载能力动态测评方法的理论依据。
The natural frequency of oil derrick changes with the changing of the load it bears on, this character of oil derrick is the theoretical basis for establishing the dynamic evaluating method.
建立全承载客车骨架的有限元壳单元模型，分析其静力、模态、频率响应和疲劳寿命。
The FEA(finite elements analysis) model is established for coach monocoque frame. The analysis on static, mode, frequency response and fatigue life are carried on.
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