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Lubrication and heat dissipation in transmissions and bearings

Lubrication and heat dissipation in transmissions and bearings are critical to both the performance and the life of these systems

Newsletter EnginSoft Year 18 n°2
By Elisabetta Fava, Comer Industries | Massimo Galbiati, EnginSoft
Lubrication and heat dissipation in transmissions and bearings are critical to both the performance and the life of these systems.
Lubrication and heat dissipation in transmissions and bearings are critical to both the performance and the life of these systems.

Abstract

Transmission design is mainly based on the mechanical aspects of the transmission and lubrication is an aspect that is verified, and eventually corrected, based on bench testing, i.e. once the design phase has been completed and a physical prototype is available.

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Rubber fatigue ≠ metal fatigue: what to do when linear superposition fails

This article presents the challenges of conducting fatigue analysis on rubber components due to their nonlinear behaviour, contrasting this with linear superposition methods used in metal fatigue analysis. Traditional linear methods are effective for linear materials, allowing for efficient stress-strain history generation through the scaling of finite element (FE) solutions based on input load histories. However, these methods fail for rubber because of its complex material properties and behaviours.

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