A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heaving plate active control device for inhibiting chatter of sea-crossing bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a heaving plate active control device for restraining vibration of a sea-crossing bridge. A sea-crossing bridge possibly flutters greatly under the action of strong wind, when an induction system installed on the bridge recognizes upward vibration of the bridge in real time, a servo motor is actively controlled to rotate to rapidly lift a heaving plate suspended below the bridge and immersed in water, the water generates resistance to the heaving plate, kinetic energy of the bridge is consumed, and then vibration is controlled. Compared with the prior art without an active control driving system, the active control driving system has the advantages that the motion displacement, speed and acceleration parameters of the heaving plate can be increased through artificial active control, energy consumption of a bridge vibration system can be increased by several times or even dozens of times, and therefore the purpose of efficiently restraining bridge flutter is achieved. The device has the advantages of practicability, convenience, parameter adjustability, economical performance and high efficiency.
本发明属于桥梁风致振动控制技术领域，提供了一种抑制跨海桥梁颤振的垂荡板主动控制装置。跨海桥梁在强风作用下可能发生大幅颤振，通过安装在桥梁上的感应系统实时识别桥梁向上振动时，主动控制伺服电机转动快速提升悬挂于桥梁下方、浸没于水中的垂荡板，水体对垂荡板产生阻力，消耗桥梁动能，进而控制振动。相对于没有主动控制驱动系统，本发明可以人为主动控制增大垂荡板的运动位移、速度和加速度参数，进而可以数倍甚至数十倍增加桥梁振动系统的能量消耗，从而实现高效抑制桥梁颤振的目标。本发明的优势：实用便捷、参数可调、经济高效。
Heaving plate active control device for inhibiting chatter of sea-crossing bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a heaving plate active control device for restraining vibration of a sea-crossing bridge. A sea-crossing bridge possibly flutters greatly under the action of strong wind, when an induction system installed on the bridge recognizes upward vibration of the bridge in real time, a servo motor is actively controlled to rotate to rapidly lift a heaving plate suspended below the bridge and immersed in water, the water generates resistance to the heaving plate, kinetic energy of the bridge is consumed, and then vibration is controlled. Compared with the prior art without an active control driving system, the active control driving system has the advantages that the motion displacement, speed and acceleration parameters of the heaving plate can be increased through artificial active control, energy consumption of a bridge vibration system can be increased by several times or even dozens of times, and therefore the purpose of efficiently restraining bridge flutter is achieved. The device has the advantages of practicability, convenience, parameter adjustability, economical performance and high efficiency.
本发明属于桥梁风致振动控制技术领域，提供了一种抑制跨海桥梁颤振的垂荡板主动控制装置。跨海桥梁在强风作用下可能发生大幅颤振，通过安装在桥梁上的感应系统实时识别桥梁向上振动时，主动控制伺服电机转动快速提升悬挂于桥梁下方、浸没于水中的垂荡板，水体对垂荡板产生阻力，消耗桥梁动能，进而控制振动。相对于没有主动控制驱动系统，本发明可以人为主动控制增大垂荡板的运动位移、速度和加速度参数，进而可以数倍甚至数十倍增加桥梁振动系统的能量消耗，从而实现高效抑制桥梁颤振的目标。本发明的优势：实用便捷、参数可调、经济高效。
Heaving plate active control device for inhibiting chatter of sea-crossing bridge
一种抑制跨海桥梁颤振的垂荡板主动控制装置
XU FUYOU (author) / CHEN ZENGSHUN (author) / HAN YAN (author) / MAO TAOTAO (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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