Experimental and Numerical Estimation of the Aerodynamic Forces Induced by the Wind Acting on a Fast-Erecting Crane

Author:

Augustyn Marcin1ORCID,Barski Marek1ORCID,Chwał Małgorzata1ORCID,Stawiarski Adam1ORCID

Affiliation:

1. Department of Machine Design and Composite Structure, Faculty of Mechanical Engineering, Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Kraków, Poland

Abstract

The current work concerns the problem of estimating the aerodynamic forces and moments induced by the wind on the fast-erecting 63K crane by Liebherr. In the first step, scaled sectional models of the tower truss and horizontal jib truss are prepared for experimental analysis in an aerodynamic tunnel. Next, the aerodynamic forces and moments are measured in the aerodynamic tunnel. It is assumed that the direction of the wind changes from 0° to 180° in 15° steps for both of the studied sectional models. The experimental tests are carried out for two levels of turbulence intensity. In the case of the model of the vertical part of the studied crane, the turbulence intensities are assumed to be equal to 3% and 9%. In the case of the horizontal crane jib, they are 3% and 12%, respectively. In the second step, a CFD analysis is performed with the use of Ansys Fluent R22 software. The standard k-ε model with a standard wall function of the turbulent flow is utilized. The airflow around the studied structures is modeled with the use of polytetrahedral cells. A relatively good agreement between the numerical and experimental results is observed. The obtained values are compared to the appropriate standard, namely PN-ISO 4302.

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference59 articles.

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2. Express Web Desk (2019). Watch: Overhead Crane Crashes on Buildings due to Cyclone Fani, Express Web Desk. Available online: https://indianexpress.com/article/india/cyclone-fani-overhead-crane-crashes-on-buildings-due-to-severe-storm-5709526/.

3. Ayub, M., and Lu, A. (2023, March 28). Investigation of the Failures of Three Hammerhead Cranes on 10 September 2017, in Miami and Fort Lauderdale in the Wake of Hurricane Irma, Office of Engineering Services Directorate of Construction. Available online: https://www.youtube.com/watch?v=LXCj8OmAD4I.

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