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A platform for research: civil engineering, architecture and urbanism
Vortex-induced vibration control device and method for steel pipe component
The invention discloses a vortex-induced vibration control device and method for a steel pipe component, and belongs to the technical field of disaster prevention and reduction of power transmission lines. Comprising a shell, a telescopic unit and a damper, a plurality of turbulent flow protrusions are arranged on the outer surface of the shell, and the turbulent flow protrusions are evenly distributed in the circumferential direction of the shell; a plurality of gaskets are arranged on the inner surface of the shell, evenly distributed in the circumferential direction of the shell and capable of being attached to a steel pipe component. The telescopic unit is arranged between the shell and the gasket and located in the shell. The telescopic unit is slidably connected with the gasket, and the gasket slides in the radial direction of the shell. The multiple dampers are symmetrically arranged in the shell. Vortex-induced vibration is inhibited by changing the aerodynamic shape of the cross section of the steel pipe component and increasing structural damping, and vortex-induced vibration control is achieved. The problem that vortex-induced vibration affects the safety of the power transmission line is solved.
本发明公开了一种钢管构件涡激振动控制装置及方法，属于输电线路防灾减灾技术领域。包括壳体、伸缩单元和阻尼器，壳体的外表面设置有多个扰流凸起，扰流凸起沿壳体的周向均匀分布；壳体内表面设置有多个垫片，垫片沿壳体的周向均匀分布，可贴附于钢管构件；伸缩单元设置于壳体与垫片之间，且位于壳体内部；伸缩单元与垫片滑动连接，垫片沿壳体的径向滑动；多个阻尼器对称设置于壳体内部。通过改变钢管构件横截面气动外形，增大结构阻尼来抑制涡激振动现象，实现涡激振动控制；解决涡激振动影响输电线路安全性的问题。
Vortex-induced vibration control device and method for steel pipe component
The invention discloses a vortex-induced vibration control device and method for a steel pipe component, and belongs to the technical field of disaster prevention and reduction of power transmission lines. Comprising a shell, a telescopic unit and a damper, a plurality of turbulent flow protrusions are arranged on the outer surface of the shell, and the turbulent flow protrusions are evenly distributed in the circumferential direction of the shell; a plurality of gaskets are arranged on the inner surface of the shell, evenly distributed in the circumferential direction of the shell and capable of being attached to a steel pipe component. The telescopic unit is arranged between the shell and the gasket and located in the shell. The telescopic unit is slidably connected with the gasket, and the gasket slides in the radial direction of the shell. The multiple dampers are symmetrically arranged in the shell. Vortex-induced vibration is inhibited by changing the aerodynamic shape of the cross section of the steel pipe component and increasing structural damping, and vortex-induced vibration control is achieved. The problem that vortex-induced vibration affects the safety of the power transmission line is solved.
本发明公开了一种钢管构件涡激振动控制装置及方法，属于输电线路防灾减灾技术领域。包括壳体、伸缩单元和阻尼器，壳体的外表面设置有多个扰流凸起，扰流凸起沿壳体的周向均匀分布；壳体内表面设置有多个垫片，垫片沿壳体的周向均匀分布，可贴附于钢管构件；伸缩单元设置于壳体与垫片之间，且位于壳体内部；伸缩单元与垫片滑动连接，垫片沿壳体的径向滑动；多个阻尼器对称设置于壳体内部。通过改变钢管构件横截面气动外形，增大结构阻尼来抑制涡激振动现象，实现涡激振动控制；解决涡激振动影响输电线路安全性的问题。
Vortex-induced vibration control device and method for steel pipe component
一种钢管构件涡激振动控制装置及方法
LIU CHUNCHENG (author) / GONG YULONG (author) / WANG MENG (author)
2024-02-06
Patent
Electronic Resource
Chinese
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