Analysis of methods for determining of impact forces at crossing of wheel over rail irregularities

Abstract

During the exploitation, the rail is exposed to intensive forces caused by the trains passing. These forces lead to the wear and non-uniform damages of the rail head. When the wheels pass over these places, sudden change of rail geometry causes very intensive impact forces which are transmitted to the track and railway vehicle. The consequences of action of these dynamic forces are very often fatigue and failure of elements of vehicles and tracks which in many cases cause derailments with enormous consequences. From this reason, these problem is very actual in the field of research of dynamic behavior of railway vehicles. Hence, the aim of this paper is to analyze some of the existing methods for determination of impact forces at crossing of railway wheel over the rail irregularities. This initial research of authors should draw attention of wide scientific and professional auditorium on this problem and to give base for further research and improvements in this area.