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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 : Friday, November 19, 2021 - 4:44:54 PM
Last modification on : Saturday, November 20, 2021 - 3:49:04 AM

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  • HAL Id : hal-03437086, 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. 2nd Euro-Mediterranean Conference - Medyna 2017, Apr 2017, Sevilla, Spain. ⟨hal-03437086⟩

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