With the span of long-span bridges is becoming longer, the stiffness and damping ratio of structures decrease clearly and then critical flutter velocity falls accordingly. So flutter has been the most important problem in the design of long-span bridges.
随着大跨桥梁修建的日益长大化，其刚度和阻尼明显减小，因此颤振临界风速也大幅降低，颤振问题成为大跨桥梁抗风设计的关键。
参考来源 - 基于ADINA的桥梁气动导数数值模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
Examples were presented to analyze the effects of asymmetrical parameters on the critical flutter velocity under different coupled stiffness.
用算例分析了结构在不同耦合刚度下非对称参数对颤振速度影响的变化规律。
Coupling control equation of system was presented based on assumption method and change tendencies of critical velocity for flutter with both gap and the thickness of beam were discussed.
采用假设模态法建立耦合控制方程。分析系统的颤振临界流速随间隙和板厚的变化规律。
The results show that the critical velocity for flutter decreases with the increase of gap while increases with the increase of beam's thickness.
结果表明，颤振临界流速随间隙的增大而降低；随板厚的增大而提高。
应用推荐