Title: Wind Tunnel Test of Aeroelastic Model of Caofeidian Coal Heap Wind Prevention Steel Grid Structure
Abstract: Nowadays,the wind load of complex grid structure is usually confirmed by rigid model in wind tunnel test.But difference from prototype in the wind load exists because the coupling effect between structure and fluid is ignored.The aero elastic model can accurately describe response of structure in nature boundary layer.However,the aero elastic model has to be designed by properly simplifying similarity rules and selecting main response mode of vibration because the grid structure is very complex.This thesis designs a 1:50 aero elastic model of Caofeidian coal heap steel grid structure.The internal force of base of bracket is tested by strain gauge,and the wind load coefficients of the internal force are tested in B-type wind field on different wind speeds.Furthermore,the along-wind direction displacement of grid structure is tested by a laser displacement sensor.Lastly,the two different types of wind load coefficients are discussed.This thesis can provide reference for aero elastic model designation and the wind load coefficient calculation of similar structures.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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