Under the condition of without considering tire stiffness, multiple theoretical models of interaction of vehicle-simply supported girder bridge system are established. Using modal analysis method and free vibration theory, bridge frequency under vehicle load can be solved.
3、在不考虑轮胎刚度的情况下和在考虑轮胎刚度的情况下,分别建立了多个车辆—简支梁桥系统相互作用的理论模型,利用模态分析方法和自由振动理论,求解出车辆作用下的桥梁有载频率。
参考来源 - 中小跨径梁式桥动力检测技术及损伤识别方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Operational modal analysis method of bridge was built based on frequency domain and spatial domain decomposition.
利用频域-空间域分解法，建立桥梁运行模态识别方法。
The dynamic response of the damping multi-DOF structural system is usually calculated by the real modal analysis method.
求解有阻尼多自由度结构系统的振动微分方程，实模态分析法是得到广泛应用的一种有效方法。
Static and dynamic frequency and dynamic stress are analyzed by using the modal analysis method and the transient dynamics method.
通过模态分析、瞬态动力学的方法，分析了叶片的动频、动应力。
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