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Etude du phénomène de lubrification électroactive à l'aide d'actionneurs piézoélectriques. Application à la réduction des forces de frottement sec dans un moteur à
combustion interne.

Abstract : My research deals with the application of ultrasonic vibrations in friction modulation on a dry contact between solids. Based on fretting conditions between elastic bodies associated with a dynamic normal excitation, an analytical study permits to highlight excitations parameters and model the electroactive lubrication. This technique requires heavy contact pressures and high excitation frequencies. Until now, the most adaptable actuator technology is the piezoelectric systems. Experimentally, a fundamental approach on tribometer was realized in order to validate our theorical study. Many potential applications of electroactive lubrication are possible such as haptic actuators and piezoelectric clutch. Our works were applied on the friction losses reduction in a combustion engine for the F1 motor manufacturer ASIATECH.
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https://tel.archives-ouvertes.fr/tel-00096517
Contributor : Lauric Garbuio <>
Submitted on : Tuesday, September 19, 2006 - 3:59:33 PM
Last modification on : Friday, October 23, 2020 - 4:52:05 PM
Long-term archiving on: : Monday, April 5, 2010 - 11:02:47 PM

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  • HAL Id : tel-00096517, version 1

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Lauric Garbuio. Etude du phénomène de lubrification électroactive à l'aide d'actionneurs piézoélectriques. Application à la réduction des forces de frottement sec dans un moteur à
combustion interne.. Mécanique [physics.med-ph]. Institut National Polytechnique de Toulouse - INPT, 2006. Français. ⟨tel-00096517⟩

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