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A platform for research: civil engineering, architecture and urbanism
Vortex vibration suppression device and method
The invention discloses a vortex vibration suppression device which is used for being installed on a long and thin structure body of a bridge and comprises a skin, a monitoring mechanism and a control mechanism. The skin is installed on the long and thin structure body in the length direction of the long and thin structure body to form a bulge, and the skin can deform under the certain stress effect. The monitoring mechanism is used for sensing an external flow field environment and obtaining vibration displacement, wind speed and wind direction information of different positions of the slender structure main body; the control mechanism is connected with the skin and the monitoring mechanism and used for receiving information of the monitoring mechanism and applying force to the skin at the position to change the appearance of the skin when the vibration displacement response at the position exceeds a limiting value. The invention further provides a vortex-induced vibration suppression method adopting the vortex-induced vibration suppression device. The real-time incoming flow condition of the long and thin structure body can be monitored, the aerodynamic force appearance of the cylinder is adjusted in real time according to the incoming flow wind speed and direction, and therefore the optimal vortex vibration restraining effect is achieved under different working conditions.
本申请公开了一种涡振抑制装置，用于安装于桥梁的细长结构主体上，所述涡振抑制装置包括蒙皮、监测机构、控制机构；所述蒙皮沿细长结构主体的长度方向安装于细长结构主体上形成鼓包，所述蒙皮能在一定受力作用下产生变形；所述监测机构用于感知外部流场环境，获得细长结构主体不同位置的振动位移以及风速、风向信息；所述控制机构连接蒙皮与监测机构，用于接收监测机构的信息，在某位置振动位移响应超出限值时对该位置的蒙皮施力改变蒙皮外形。本申请还提供一种采用如上所述的涡振抑制装置的涡振抑制方法。本发明能监测细长结构主体实时来流情况，根据来流风速风向实时调整圆柱体的气动力外形，从而在不同工况下达到最佳的涡振抑制效果。
Vortex vibration suppression device and method
The invention discloses a vortex vibration suppression device which is used for being installed on a long and thin structure body of a bridge and comprises a skin, a monitoring mechanism and a control mechanism. The skin is installed on the long and thin structure body in the length direction of the long and thin structure body to form a bulge, and the skin can deform under the certain stress effect. The monitoring mechanism is used for sensing an external flow field environment and obtaining vibration displacement, wind speed and wind direction information of different positions of the slender structure main body; the control mechanism is connected with the skin and the monitoring mechanism and used for receiving information of the monitoring mechanism and applying force to the skin at the position to change the appearance of the skin when the vibration displacement response at the position exceeds a limiting value. The invention further provides a vortex-induced vibration suppression method adopting the vortex-induced vibration suppression device. The real-time incoming flow condition of the long and thin structure body can be monitored, the aerodynamic force appearance of the cylinder is adjusted in real time according to the incoming flow wind speed and direction, and therefore the optimal vortex vibration restraining effect is achieved under different working conditions.
本申请公开了一种涡振抑制装置，用于安装于桥梁的细长结构主体上，所述涡振抑制装置包括蒙皮、监测机构、控制机构；所述蒙皮沿细长结构主体的长度方向安装于细长结构主体上形成鼓包，所述蒙皮能在一定受力作用下产生变形；所述监测机构用于感知外部流场环境，获得细长结构主体不同位置的振动位移以及风速、风向信息；所述控制机构连接蒙皮与监测机构，用于接收监测机构的信息，在某位置振动位移响应超出限值时对该位置的蒙皮施力改变蒙皮外形。本申请还提供一种采用如上所述的涡振抑制装置的涡振抑制方法。本发明能监测细长结构主体实时来流情况，根据来流风速风向实时调整圆柱体的气动力外形，从而在不同工况下达到最佳的涡振抑制效果。
Vortex vibration suppression device and method
一种涡振抑制装置及方法
CHAI XIAOPENG (author) / HAN YAN (author) / WU XIAOBO (author) / YAN HUBIN (author) / JING GUOQIANG (author) / LI CHUNGUANG (author) / WANG ZHENGXING (author) / LI KAI (author) / MA CHANGFEI (author) / ZHOU XUHUI (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
G01M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
,
Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen
/
G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK
,
Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes
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