MATHEMATICAL MODELS OF MODERN SHOCKABSORBING DEVICES OF RAILWAY ROLLING STOCKS

The analysis of existing mass-produced absorbing devices of the world railway rolling stocks is carried out. It is found out that all existing friction absorbing devices can be divided according to the case type and the supporting and return device. The paper presents a mathematical model of friction absorbing devices of hexagonal and plate type. The difference of mathematical models from each other is given. The existing mass-produced elastomeric absorbing devices are analyzed. It is found out that all elastomeric absorbing devices can be divided into two types: with three chambers (expansion, compression and constant volume) and two chambers (expansion and compression). The paper provides detailed descriptions of mathematical models of elastomeric absorbing devices without reference to specific models. The difference between mathematical models of elastomeric absorbing devices with three and two chambers is shown.