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A platform for research: civil engineering, architecture and urbanism
Multidirectional multi-tuned mass damper for vibration reduction of cable structure
The invention relates to the technical field of vibration control, in particular to a multidirectional multi-tuned mass damper for vibration reduction of a cable structure, which comprises an annular clamp and a damper assembly, and due to the fact that a steel strand has damping and rigidity, the damper assembly can be formed by fixing mass blocks at the two ends of the steel strand respectively. According to the multi-directional multi-tuned mass damper, the annular clamp is arranged, the multiple damper assemblies are annularly distributed on the annular clamp and then clamped outside the inhaul cable through the annular clamp, the multi-directional multi-tuned mass damper can be formed, the multi-directional multi-tuned mass damper is simple in structure and small in size, integrated processing is easy, the installation difficulty is lowered, and the influence of the damper on preset parameters of the inhaul cable structure can be reduced; besides, due to the tuning effect of the damper, when the inhaul cable vibrates in multiple directions, the mass block and the inhaul cable vibrate together, the vibration energy of the inhaul cable is transmitted to the mass block to the maximum extent and dissipated through internal friction between the steel strand strands, the vibration reaction of the inhaul cable is attenuated and controlled, and the service life of the inhaul cable is prolonged. And therefore, the vibration of the inhaul cable in different directions is effectively reduced.
本申请涉及一种用于索结构减振的多向多重调谐质量阻尼器，涉及振动控制技术领域，包括环形夹具和阻尼器组件，由于钢绞线自带阻尼和刚度，通过在钢绞线的两端分别固定质量块即可组成阻尼器组件，并将多个阻尼器组件环形分布于环形夹具上，再通过环形夹具卡接于拉索外，即可组成多向多重调谐质量阻尼器，其结构简单、体积小，不仅易于集成化处理，降低安装难度，还可减小阻尼器对拉索结构预设参数的影响；另外，由于阻尼器的调谐作用，因此当拉索发生多方向振动时，使得质量块与拉索一起振动，将拉索的振动能量最大限度的传递至质量块并通过钢绞线股线间的内摩擦耗散，使拉索的振动反应衰减并受到控制，进而有效减小拉索在不同方向上的振动。
Multidirectional multi-tuned mass damper for vibration reduction of cable structure
The invention relates to the technical field of vibration control, in particular to a multidirectional multi-tuned mass damper for vibration reduction of a cable structure, which comprises an annular clamp and a damper assembly, and due to the fact that a steel strand has damping and rigidity, the damper assembly can be formed by fixing mass blocks at the two ends of the steel strand respectively. According to the multi-directional multi-tuned mass damper, the annular clamp is arranged, the multiple damper assemblies are annularly distributed on the annular clamp and then clamped outside the inhaul cable through the annular clamp, the multi-directional multi-tuned mass damper can be formed, the multi-directional multi-tuned mass damper is simple in structure and small in size, integrated processing is easy, the installation difficulty is lowered, and the influence of the damper on preset parameters of the inhaul cable structure can be reduced; besides, due to the tuning effect of the damper, when the inhaul cable vibrates in multiple directions, the mass block and the inhaul cable vibrate together, the vibration energy of the inhaul cable is transmitted to the mass block to the maximum extent and dissipated through internal friction between the steel strand strands, the vibration reaction of the inhaul cable is attenuated and controlled, and the service life of the inhaul cable is prolonged. And therefore, the vibration of the inhaul cable in different directions is effectively reduced.
本申请涉及一种用于索结构减振的多向多重调谐质量阻尼器，涉及振动控制技术领域，包括环形夹具和阻尼器组件，由于钢绞线自带阻尼和刚度，通过在钢绞线的两端分别固定质量块即可组成阻尼器组件，并将多个阻尼器组件环形分布于环形夹具上，再通过环形夹具卡接于拉索外，即可组成多向多重调谐质量阻尼器，其结构简单、体积小，不仅易于集成化处理，降低安装难度，还可减小阻尼器对拉索结构预设参数的影响；另外，由于阻尼器的调谐作用，因此当拉索发生多方向振动时，使得质量块与拉索一起振动，将拉索的振动能量最大限度的传递至质量块并通过钢绞线股线间的内摩擦耗散，使拉索的振动反应衰减并受到控制，进而有效减小拉索在不同方向上的振动。
Multidirectional multi-tuned mass damper for vibration reduction of cable structure
一种用于索结构减振的多向多重调谐质量阻尼器
WU XIAOBO (author) / WANG ZHENGXING (author) / JING GUOQIANG (author) / WANG XIANG (author) / MA CHANGFEI (author) / LIU PENGFEI (author) / SHENG NENGJUN (author) / LI LI (author) / DAI QINGNIAN (author) / XIAO LONG (author)
2021-04-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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