Analysis and optimization of the main girder of the bridge crane with an asymmetric box cross-section

Author:

Pavlović Goran,Savković MileORCID

Abstract

The presented research deals with the optimal design of the main girder with an asymmetric box cross-section of the double-beam bridge crane. The Moth-Flame Optimization algorithm (MFO) is used for solving this multicriteria optimization problem. This algorithm is a relatively new population-based metaheuristic method. The paper takes the following criteria as the constraint functions: strength, local stability of the girder plates (webs and top flange), local stability of the longitudinal stiffeners, global stability of the main girder, deflections, and period of oscillation. The justification of the proposed procedure is shown in one example of a real solution of the double-beam bridge crane. Significant savings in material were achieved in this research, within the range of 19.42 to 25.49%. The use of this algorithm enables the application of a very large number of variables and constraint functions, whereby the optimal values are obtained in a relatively short period.

Funder

Ministry of Education, Science and Technological Development of the Republic of Serbia

Publisher

Centre for Evaluation in Education and Science (CEON/CEES)

Subject

General Medicine

Reference14 articles.

1. PAVLOVIĆ,G., KVRGIĆ,V., SAVKOVIĆ,M., GAŠIĆ,M., ZDRAVKOVIĆ,N.: The influence of the position of longitudinal stiffeners to the optimum dimensions of the box section of the singlegirder bridge crane, 3 rd Conference on Mechanical Engineering Technologies and Applications "COMETa 2016", East Sarajevo - Jahorina, B&H, Republic of Srpska, pp. 131-138;

2. QIN,D., ZHU,Q.: Structural topology optimization of box girder based on method of moving asymptotes (MMA), International conference on intelligent computation technology and automation, Changsha, Hunan, China, pp.402-405;

3. JARMAI,K., FARKAS,J.: Optimum cost design of welded box beams with longitudinal stiffeners using advanced backtrack method, Struct Multidisc Optim, 2001, 21, pp. 52-59;

4. PAVLOVIĆ,G., SAVKOVIĆ,M., ZDRAVKOVIĆ,N., MARKOVIĆ,G.: Optimal design for the welded girder of the crane runway beam, Proc. Fifth International Conference Mechanical Engineering in the XXI Century MASING 2020, Niš, pp. 151-156;

5. SAVKOVIĆ,M., BULATOVIĆ,R., GAŠIĆ,M., PAVLOVIĆ,G., STEPANOVIĆ,A.: Optimization of the box section of the main girder of the single-girder bridge crane by applying biologically inspired algorithms, Engineering Structures, 2017, 148, pp.452-465;

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1. Reasonable design method of box crane girder by Taguchi method;Journal of Applied Engineering Science;2024

2. Application of Segmented and Prestressed Supporting Structures in Bridge Crane Systems: Potentials and Challenges;Applied System Innovation;2023-11-09

3. Light-weight design of an overhead crane’s girder with a non-symmetric box cross-section;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2023-06-12

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