Experimental device for measuring correlation of aerodynamic devices of suspension cable pipeline bridge in turbulent wind field
An experimental device, a technology of pipeline bridge, applied in aerodynamic test, measurement device, vibration test, etc.
Pending Publication Date: 2021-01-05
WUHAN UNIV OF SCI & TECH
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Problems solved by technology
At present, in the study of the wind resistance characteristics of the suspension pipeline bridge, there are many studies on its static characteristics, but relatively few studies on its dynamic characteristics
Method used
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Embodiment 1
[0022] Determine the distance between the double paddle blades 15 and the suspension pipeline bridge section model 4 by adjusting the sliding seat 5, then confirm the speed setting of the drive motor 8, and finally decide whether to run the cylinder 9 according to the actual experimental nature, and wait for the above parameters to be set. After the determination is completed, the force experiment can be carried out on the section model of the suspension pipeline bridge through the action of turbulent wind within the specified time, and the influence of the section model of the suspension pipeline bridge on the turbulent wind field can be analyzed in detail.
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The invention discloses an experimental device for measuring the correlation of aerodynamic devices of a suspension cable pipeline bridge in a turbulent wind field, which comprises a sliding table anda suspension cable pipeline bridge segment model, wherein support frames are arranged on two sides of the middle part of the sliding table, a truss is arranged in the middle of the support frames, and the suspension cable pipeline bridge segment model is arranged on the truss. A sliding base is arranged on the sliding table, a positioning screw handle is arranged on the side face of the sliding base, an aluminum profile is arranged at the upper end of the sliding base, a driving motor is arranged at the top end of the aluminum profile, an air cylinder is connected to the bottom of the drivingmotor, a bearing support is arranged below the air cylinder, a mounting base is connected to the top end of a rotating shaft rod of the driving motor, the top end of the mounting base is connected with a double-paddle blade, the rotating shaft rod is sleeved with a bearing ring base, the lower end of the bearing ring base is connected with a right-angle frame, limiting blocks are arranged at thetwo ends of the sliding table. A turbulence wind field is created through the double-paddle blade, a multi-angle experiment is conducted on the suspension cable pipeline bridge segment model, and thendata reference is provided.
Description
technical field [0001] The invention relates to the research field of aerodynamic characteristics of a suspension pipeline bridge in a turbulent wind field, in particular to an experimental device for measuring the correlation of aerodynamic devices of a suspension pipeline bridge in a turbulent wind field. Background technique [0002] Compared with the road suspension bridge, the main girder section of the suspension pipeline bridge is narrower, so it is very sensitive to the wind load. At present, in the study of the wind resistance characteristics of the suspension pipeline bridge, there are many studies on its static characteristics, but relatively few studies on its dynamic characteristics. The dynamic effects of the suspension pipeline bridge under wind load mainly include flutter, galloping, buffeting and vortex induced vibration. Among them, buffeting is mainly caused by the pulsation component in the wind speed. At present, domestic and foreign studies mostly foc...
Claims
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IPC IPC(8): G01M9/00G01M9/08G01M7/02G01M13/00
CPCG01M7/02G01M9/00G01M9/08G01M13/00
Inventor 黄兴
Owner WUHAN UNIV OF SCI & TECH