Under the axial step load case, dynamic load tends to inspire a higher order buckling mode .
在阶跃轴压载荷情况下，动力载荷可能激发比静力载荷更高阶的屈曲模态。
The result indicated that the tower is safe in every load case, and it provides reference for construction.
在模型中设置横撑和拉杆，对比有无横撑和拉杆对桥塔的影响，为工程施工提供参考依据。
The most dangerous load case, most stressed element unit, structure design, etc. are discussed based on the calculation results.
分析计算结果，并针对最危险工况、危险单元、结构设计等进行了初步探讨。
Calculate the finite element mode of the complex combined structures in the load case and get the result of the theory calculation.
建立曲轴连杆组合结构模型，进行有限元计算得出曲轴连杆组合结构的固有频率和模态振型。
The jacking force has apparent effects on displacement and stress distribution of segments, and it is the most adverse load case during construction stage.
千斤顶顶力对施工阶段管片的位移、应力有明显的影响，千斤顶顶力作用是管片在施工状态下最不利的工况。
The stress strain properties of orthotropic steel deck pavement and adhesive performance between pavement and steel deck are analyzed under various modulus of asphalt concrete and load case.
分析在不同的荷载位置下 ，对应不同沥青混凝土模量值的正交异性钢桥面铺装层的应力应变特性及与钢板的粘结性能。
Optimized the rib structure under a single load case and multiply loadcase respectively using the topology optimization module of the PATRAN/NASTRAN and get theclear design result of topology format.
采用 有限元软件PATRAN/NASTRAN的拓扑优化设计模块对该肋结构分别进行了单一工况和多工况情况下的拓扑优化，得到了拓扑形式清晰的设计结果。
Optimized the rib structure under a single load case and multiply loadcase respectively using the topology optimization module of the PATRAN/NASTRAN and get theclear design result of topology format.
采用 有限元软件PATRAN/NASTRAN的拓扑优化设计模块对该肋结构分别进行了单一工况和多工况情况下的拓扑优化，得到了拓扑形式清晰的设计结果。
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