STRESS-STRAIN STATE OF CRANE RAILS UPON THE CONTACT OF TRAVELLING CRANE WHEELS

Abstract

Crane rails are the only constructive controller of the stress-strain state of the upper, most loaded zone of the wall of welded crane girders. When moving the wheels of travelling cranes, the head and side faces of the rail are subjected to mechanical and fatigue wear. Using the example of crane rail, the article deals with the issues of contact strength of domestic rails and rails made by the German standards. The developed crane rails of a new assortment for severe operating conditions are also considered. The simulation of the stress-strain state of rails is carried out using the PC "AutodeskInventor". It is shown that the crane rails do not correspond to contemporary operating conditions and require changes in geometric parameters.