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Study of the lifecycle of rubber suspension elements for optimised maintenance and safe dynamic behaviour

Abstract : Transport industry and, more specifically, railway industry, is confronted with a permanent need of improvement of its products. The competitiveness of rolling stock does not come only from low-cost production, but also from wise-calculated lifecycle costs. Nowadays, many contracts for railway operators include not only rolling stock, but also its maintenance services throughout its lifetime, which may reach up to 30% of global costs. Hence, deep knowledge about the system’s ageing is a strong asset to ensure a good performance, both on quality of service and financial costs. Rubber parts are widely used in railway technology because of their mechanical properties, providing both stiffness and, to a certain extent, additional damping and vibration filtering. Unlike metallic parts, whose mechanical properties remain relatively stable, rubber’s behaviour can change throughout a lifecycle, due to service loads and environmental influence. Such changes might have an impact on the system’s overall behaviour and lead to undesirable scenarii. For a given bogie model, we seek to estimate the stiffness variation of some rubber parts, which are deemed critical for safe operation.
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Submitted on : Monday, November 22, 2021 - 1:15:47 PM
Last modification on : Tuesday, November 23, 2021 - 3:46:39 AM

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  • HAL Id : hal-03440046, version 1

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Andrés Malo-Estepa, Adnane Boukamel, Thierry Tison, Franck Massa. Study of the lifecycle of rubber suspension elements for optimised maintenance and safe dynamic behaviour. 23ème Congrès Français de Mécanique, Aug 2017, Lille, France. ⟨hal-03440046⟩

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