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A platform for research: civil engineering, architecture and urbanism
Self-adaptive control device for improving flutter critical wind speed of long-span bridge
The invention discloses a self-adaptive control device for improving the flutter critical wind speed of a long-span bridge, which belongs to the technical field of bridge vibration reduction and comprises a plurality of groups of flexible thin steel plates, a plurality of groups of tension control systems, a wind speed sensor, a vibration sensor, a control unit and a data acquisition and processing system, an auxiliary flexible thin steel plate is installed on the windward edge of a bridge structure, the tension of the auxiliary flexible thin steel plate is controlled, and the shape of the flexible thin steel plate is adjusted in a self-adaptive mode under different wind speed conditions to reduce aerodynamic moment and phase lag, so that the wind resistance of a bridge is improved, the flutter control effect is optimized, and the flutter critical wind speed of the bridge is remarkably increased; the aerodynamic force borne by the bridge is obviously reduced so as to adapt to different wind environments.
本发明公开一种提高大跨度桥梁颤振临界风速的自适应控制装置，属于桥梁减振技术领域，包括多组柔性薄钢板、多组张力控制系统、风速传感器、振动传感器、控制单元、数据采集与处理系统，通过在桥梁结构的迎风边缘安装辅助柔性薄钢板并控制其张力，在不同风速条件下自适应调整柔性薄钢板的形态，以减少空气动力矩和相位滞后，进而提高桥梁的抗风性能，优化颤振控制效果，显著提高桥梁颤振临界风速，桥梁所受气动力显著下降，以适应不同的风环境。
Self-adaptive control device for improving flutter critical wind speed of long-span bridge
The invention discloses a self-adaptive control device for improving the flutter critical wind speed of a long-span bridge, which belongs to the technical field of bridge vibration reduction and comprises a plurality of groups of flexible thin steel plates, a plurality of groups of tension control systems, a wind speed sensor, a vibration sensor, a control unit and a data acquisition and processing system, an auxiliary flexible thin steel plate is installed on the windward edge of a bridge structure, the tension of the auxiliary flexible thin steel plate is controlled, and the shape of the flexible thin steel plate is adjusted in a self-adaptive mode under different wind speed conditions to reduce aerodynamic moment and phase lag, so that the wind resistance of a bridge is improved, the flutter control effect is optimized, and the flutter critical wind speed of the bridge is remarkably increased; the aerodynamic force borne by the bridge is obviously reduced so as to adapt to different wind environments.
本发明公开一种提高大跨度桥梁颤振临界风速的自适应控制装置，属于桥梁减振技术领域，包括多组柔性薄钢板、多组张力控制系统、风速传感器、振动传感器、控制单元、数据采集与处理系统，通过在桥梁结构的迎风边缘安装辅助柔性薄钢板并控制其张力，在不同风速条件下自适应调整柔性薄钢板的形态，以减少空气动力矩和相位滞后，进而提高桥梁的抗风性能，优化颤振控制效果，显著提高桥梁颤振临界风速，桥梁所受气动力显著下降，以适应不同的风环境。
Self-adaptive control device for improving flutter critical wind speed of long-span bridge
一种提高大跨度桥梁颤振临界风速的自适应控制装置
GAO DONGLAI (author) / MENG HAO (author) / CHEN WENLI (author) / LI HUI (author)
2024-09-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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