Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Control device for restraining wind vibration of bridge
The invention mainly relates to a method for controlling wind vibration of a bridge structure. The method is used for restraining the phenomenon of divergent amplitude vibration caused by the fact that the energy input by aerodynamic force is larger than the energy dissipated by mechanical damping of a bridge structure system at the high wind speed. The method is realized by installing symmetrical tuyeres on a bridge simplified model. The method can improve large-scale vortex shedding caused by unstable distribution of the wake flow velocity of the bridge. The aerodynamic shape is changed by mounting the tuyeres on the windward side of the bridge section, and the effects of reducing resistance and improving the aerodynamic stability of the bridge are achieved.
本发明主要涉及桥梁结构风振的的控制方法，用来抑制高风速下气动力输入的能量大于桥梁结构系统的机械阻尼所耗散的能量所导致的发散幅值振动现象。所使用的方法为在桥梁简化模型上安装对称性风嘴来实现，本发明能改善了桥梁尾流速度分布不稳定而引起的大尺度旋涡脱落。通过在桥梁截面迎风面位置安装风嘴改变其空气动力学外型，做到减阻和提升桥梁气动稳定性的效果。
Control device for restraining wind vibration of bridge
The invention mainly relates to a method for controlling wind vibration of a bridge structure. The method is used for restraining the phenomenon of divergent amplitude vibration caused by the fact that the energy input by aerodynamic force is larger than the energy dissipated by mechanical damping of a bridge structure system at the high wind speed. The method is realized by installing symmetrical tuyeres on a bridge simplified model. The method can improve large-scale vortex shedding caused by unstable distribution of the wake flow velocity of the bridge. The aerodynamic shape is changed by mounting the tuyeres on the windward side of the bridge section, and the effects of reducing resistance and improving the aerodynamic stability of the bridge are achieved.
本发明主要涉及桥梁结构风振的的控制方法，用来抑制高风速下气动力输入的能量大于桥梁结构系统的机械阻尼所耗散的能量所导致的发散幅值振动现象。所使用的方法为在桥梁简化模型上安装对称性风嘴来实现，本发明能改善了桥梁尾流速度分布不稳定而引起的大尺度旋涡脱落。通过在桥梁截面迎风面位置安装风嘴改变其空气动力学外型，做到减阻和提升桥梁气动稳定性的效果。
Control device for restraining wind vibration of bridge
一种抑制桥梁风振的控制装置
CHEN ZIQI (Autor:in) / YAN LIANGLIANG (Autor:in)
19.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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