Affiliation:
1. Centre for Railway Research (CRR), IIT
Abstract
Abstract
Emergency rubber springs (ERS) are an integral part of an air spring and act in series or parallel with the compressed air provided inside the bellow. Under the air spring’s deflated state, the ERS acts as a bumper/suspension and supports the full operating vertical and shear load. The influence of the amplitude and direction of the shear strain on the emergency spring when subjected to compression load is investigated. It is observed that the emergency spring’s stiffness slightly decreases, whereas the damping of the spring significantly increases when the central core is introduced. The influence of the central rubber core in the emergency spring and the effect of both emergency springs on the dynamic performance of vehicles are also being investigated. The results suggest that the ERS with a rubber core reduces the displacement part of the car body.
Publisher
Research Square Platform LLC
Reference28 articles.
1. A fractional derivative model for rubber spring of primary suspension in railway vehicle dynamics;Zhang D;ASCE-ASME J Risk and Uncert in Engrg Sys Part B Mech Engrg,2017
2. Modelling of suspension components in a rail vehicle dynamics context;Bruni S;Vehicle system dynamics,2011
3. Shaw, M.T. and MacKnight, W.J., 2005. Introduction to polymer viscoelasticity. John Wiley & Sons.
4. Liechti, K.M., Rebrov, K.R. and Rodin, G.J., 2022. Analysis of thin layers with interphases. European Journal of Mechanics-A/Solids, p.104549.
5. BAGLEY, R.L., 1979. Applications of Generalized Derivatives to Viscoelasticity. Air Force Institute of Technology.