Applying of Stress Collectives in the Design of Structural Elements of Heavy Load-Bearing Structures

Peter Sivák^1, , Ingrid Delyová¹, František Trebuňa¹ and Darina Hroncová²

¹Department of Applied Mechanics and Mechanical Engineering, Faculty of Mechanical Engineering Technical University of Košice, Slovakia

²Department of Mechatronics, Faculty of Mechanical Engineering Technical University of Košice, Slovakia

Cite this paper:
Peter Sivák, Ingrid Delyová, František Trebuňa and Darina Hroncová. Applying of Stress Collectives in the Design of Structural Elements of Heavy Load-Bearing Structures. American Journal of Mechanical Engineering. 2016; 4(7):252-257. doi: 10.12691/ajme-4-7-4

Abstract

The article deals with the analytical-experimental means of determining the rate, respectively, the degree of fatigue damage for the analysis of limit state of main supporting structural element of the main beam on the twin beam of the bridge crane. Taken into account it is the dynamic effect of load hoisting and the application of load collectives and the position of the crane crab obtained experimentally for the development of stress collectives. In this analysis, the expression of the link between random load process and fatigue properties of material the Palmgren-Miner linear theory on fatigue damage accumulation was applied.

Keywords:
stress collective bridge crane fatigue damage

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Figures

References:

[1]	P. Bigoš and F. Trebuňa, “Intenzifikácia technických spôsobilostí ťažkých nosných konštrukcií”, Acta Mechanica Slovaca, No. 1/1997, 9-30.
[2]	P. Bigoš, F. Trebuňa et al, “Dôsledky poškodenia zvarov skriňového nosníka hutníckych žeriavov”, Zdvíhacie zariadenia v teórii a praxi. High Tatras, 1996, 3-10.
[3]	R. H Jones, Engineering Materials 3, Materials Failure Analysis, Pergamonn Press, 1993.
[4]	O. Ostertag and P. Sivák, Degradačné procesy a predikcia životnosti, TypoPress Košice, 2010, 225 p.
[5]	J. Sinay, F. Lacko, Teória a stavba zdvíhacích strojov I, ALFA Bratislava, 1984. 328 p.
[6]	P. Sivák, O. Ostertag and I. Delyová, “Alternative ESA, CAE and calculation prescriptions aplication on fatigue life prediction”, Metalurgija, Vol. 49, no. 2, 2010. 508-512.