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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: In recent years, accidents of gantry cranes caused by strong winds have occurred from time to time. Therefore, it is of practical engineering significance to study the wind load of gantry cranes. Aiming at the two gantry cranes wind load characteristics, the computational fluid dynamics (CFD) method was adopted to carry out simulation research on two gantry cranes. Firstly, the Pro/E software was used to establish a three-dimensional model of the gantry crane; the ANSYS software was used to establish the outflow field of the crane; the grid division and grid independence of the computational domain were carried out by ANSYS. Then, the numerical simulation of a single gantry crane was carried out by Fluent software to analyze the aerodynamic coefficients of a single gantry crane under different wind direction angles. At the same time, the difference between the wind load in Design Rules for Cranes and the simulation was compared. Finally, considering only the influence of inflow wind load, the numerical simulation of two gantry cranes was carried out. Meanwhile, the influence of wind direction angles and two gantry cranes spacing S to the drag coefficient, the wind reduction factor of gantry crane, the velocity change cloud diagram and the pressure distribution of gantry crane were studied. The results show that the maximum wind load on the gantry crane appears in the 45° wind direction. In 90° wind direction, the wind proof effect is the best with about 52% wind reduction when the distance between the two gantry cranes S =15 m. Critical spacing of two gantry cranes S=35 m. When S >35 m, two gantry cranes shielding effect is weakened until it disappears. The maximum pressure on headwind of main girder of gantry crane is close to the both ends of the girder.
Key words: gantry crane; wind angle; gantry cranes spacing; resistance coefficient; wind-proof reduction coefficient; cloud chart of speed change; pressure distribution; numerical simulation
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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- CSA: T Indexed
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- UPD:Indexed
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2010 Zhejiang Information Institute of Mechinery Industry
Technical Support：Hangzhou Bory science and technology
