National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Determination of impact effect between railway wheel and top of rail having a small bump
Valeš, František ; Červ, Jan ; Tikal, B. ; Kaloč, R.
The aim of work is to study the dynamic contact between railway wheel and top of rail when wheel is crossing the small bump.
Stress Waves in Thin Discs Under Radial Impact Load
Červ, Jan ; Valeš, František
Stress wave propagation in a thin disc under radial impact loading is studied. Solution is based on analytical (integral transform method and method of separation of variables) and numerical (finite element method) approaches.
Dynamic model of a repeated impact in the wheel-rail system
Valeš, František ; Červ, Jan ; Adámek, V.
Full dynamic response of a wheel-rail system undergoing impact is presented in the paper. The solution is based on the finite element approach. Modelling of wave motion in the considered system was carried out with the aid of the finite element codes MSC MARC and DYNA.
Modeling of the impact of railway wheel on a rail
Valeš, František ; Červ, Jan ; Tikal, B. ; Adámek, V.
This contribution concerns the simulation of wave phenomena originating by impacts of a railway wheel on a rail. With respect to the character of these phenomena running in time of microsecond order, it is not possible to model contacting bodies in true dimensions. Hence the model research has to be used and dimensions of bodies are chosen in such way so that the numerical solution (FEM) is feasible.The influence of material models (elastic and plastic) are studied in this work.Furthermore, the influence of plastic layer generated during wheel service on wave phenomena in the wheel is investigated.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.