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Vibration reduction system of super-long sling and suspension bridge
The invention relates to the technical field of vibration reduction systems, in particular to a vibration reduction system of an ultra-long sling and a suspension bridge, the vibration reduction system of the ultra-long sling comprises a first damping assembly, a second damping assembly and a vibration reduction frame unit, and the vibration reduction frame unit is used for being arranged between sling strands in a sleeving mode; one end of the first damping assembly and one end of the second damping assembly are both used for being connected with a sling, the other ends of the first damping assembly and the second damping assembly are used for being connected with a bridge body, the arrangement height of the first damping assembly is larger than that of the second damping assembly, and the installation positions and damping coefficients of the first damping assembly and the second damping assembly are determined through a damping matrix [C]. The first damping assembly and the second damping assembly are arranged, the mounting positions and the damping coefficients of the first damping assembly and the second damping assembly are determined, and the vibration reduction frame unit is arranged, so that the problems of modal vibration control failure and wake flow vibration of a modal shape node with the displacement being 0 and the damping ratio being 0 are effectively solved.
本发明涉及减振系统技术领域，特别是一种超长吊索的减振系统和悬索桥，超长吊索的减振系统包括第一阻尼组件、第二阻尼组件和减振架单元，减振架单元用于套设在吊索股间，所述第一阻尼组件的一端和所述第二阻尼组件的一端均用于连接吊索、另一端用于与桥体连接，第一阻尼组件布设高度高于第二阻尼组件的布设高度，第一阻尼组件与第二阻尼组件的安装位置和阻尼系数通过阻尼矩阵[C]确定。通过设置第一阻尼组件和第二阻尼组件并确定其安装位置和阻尼系数，以及设置减振架单元，有效解决位移为0、阻尼比为0的模态振型节点模态振动控制失效及尾流致振问题。
Vibration reduction system of super-long sling and suspension bridge
The invention relates to the technical field of vibration reduction systems, in particular to a vibration reduction system of an ultra-long sling and a suspension bridge, the vibration reduction system of the ultra-long sling comprises a first damping assembly, a second damping assembly and a vibration reduction frame unit, and the vibration reduction frame unit is used for being arranged between sling strands in a sleeving mode; one end of the first damping assembly and one end of the second damping assembly are both used for being connected with a sling, the other ends of the first damping assembly and the second damping assembly are used for being connected with a bridge body, the arrangement height of the first damping assembly is larger than that of the second damping assembly, and the installation positions and damping coefficients of the first damping assembly and the second damping assembly are determined through a damping matrix [C]. The first damping assembly and the second damping assembly are arranged, the mounting positions and the damping coefficients of the first damping assembly and the second damping assembly are determined, and the vibration reduction frame unit is arranged, so that the problems of modal vibration control failure and wake flow vibration of a modal shape node with the displacement being 0 and the damping ratio being 0 are effectively solved.
本发明涉及减振系统技术领域，特别是一种超长吊索的减振系统和悬索桥，超长吊索的减振系统包括第一阻尼组件、第二阻尼组件和减振架单元，减振架单元用于套设在吊索股间，所述第一阻尼组件的一端和所述第二阻尼组件的一端均用于连接吊索、另一端用于与桥体连接，第一阻尼组件布设高度高于第二阻尼组件的布设高度，第一阻尼组件与第二阻尼组件的安装位置和阻尼系数通过阻尼矩阵[C]确定。通过设置第一阻尼组件和第二阻尼组件并确定其安装位置和阻尼系数，以及设置减振架单元，有效解决位移为0、阻尼比为0的模态振型节点模态振动控制失效及尾流致振问题。
Vibration reduction system of super-long sling and suspension bridge
一种超长吊索的减振系统和悬索桥
LEE SU-YOUNG (author) / WANG YUANYUAN (author) / CHEN ZHENGQING (author) / HUA XUGANG (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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