Dynamické charakteristiky nového stroje pro testování únavy železničních náprav - část 2

摘要

There were done some proposal calculations for a new testing machine. This new testing machine is determined for a dynamic fatigue testing of railway axles. The railway axles are subjected to bending and rotation (centrifugal effects). For the right proposition of a new machine is very important to know the basic dynamic characteristics of whole system. These dynamic characteristics are solved via FEM (MSC.Marc/Mentat software) in combination with SBRA (Simulation-Based Reliability Assessment) Method (probabilistic Monte Carlo approach, Anthill and Python software). The proposed dimensions and springs of a new machine for fatigue testing of railway axles were used for manufacturing. Application of the SBRA method connected with FEM in these areas is a new and innovative trend in mechanics. This paper is continuation of former work (i.e. easier deterministic approach) already presented in this journal in 2007.