Transient Solution of the Unperturbed Thermoelastic Contact Problem

Al-Shabibi, Abdullah M.; Barber, J. R.

doi:10.1080/01495730802507980

Cited by 18 publications

(6 citation statements)

References 5 publications

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“…Al‐Shabibi and Barber 26 provided the transient solution to the problem of nonhomogeneous thermoelastic contact with frictional heating. Homogenous and particular solutions with appropriate initial and boundary conditions are used to solve the problem.…”

Section: Transient Thermal Analysismentioning

confidence: 99%

“…Li and Barber 27 developed previous solutions 26 by presenting a modern method for dealing with thermoelastic instability by developing a more efficient algorithm. The modern method is characterized by its high ability to overcome the problem of computer solution density, but it stipulates that the number of required solutions be limited to the specified number of speeds as well as communication conditions.…”

Section: Transient Thermal Analysismentioning

confidence: 99%

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Thermal and thermoelastic problems in dry friction clutch: A comprehensive review

2021

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The friction clutch is considered a very important element of machines, as it plays a major role in transferring power from the driving part to the driven part. A common application of the friction clutch is in vehicles to connect between the gearbox and the engine. Fast wear occurs as a result of frictional heating that is generated when the clutch is starting to engage. This wear, in addition to the high thermal stresses, will lead to premature failure in the contacting surfaces. The present review highlights the most important studies of the thermal and thermoelastic problems of friction clutches during the last 10 years to show the challenges that were overcome and also the other challenges that needed to find solutions. The present paper will discuss in detail the influence of the frictional heat generated between contact surfaces during slipping and the main factors affecting the thermal behavior of dry friction clutches, such as sliding speed, friction materials, applied pressure, and so on. Furthermore, significant conclusions and remarks based on the available solutions to the thermal problem of the clutch are presented.

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Section: Transient Thermal Analysismentioning

confidence: 99%

Section: Transient Thermal Analysismentioning

confidence: 99%

Thermal and thermoelastic problems in dry friction clutch: A comprehensive review

2021

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“…Lower temperatures are obtained in the case of the linear pressure. Al-Shabibi and Barber [2] developed a new numerical approach of the whole sli system, by assuming contact pressure profiles under different sliding speeds. The feature of this mode is that it can be use it to find the critical speed of the system.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Finite Element Analysis of Contact Problem in Dry Friction Clutches

et al. 2021

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We present an investigation through numerical analysis (FEM) of the solution of the contact problem in friction clutch systems during engagement manoeuver. The case of high contact pressure between the sliding elements of a clutch system (flywheel, friction clutch and pressure plate) has been also considered. A finite element model of a dry friction clutch system (single disc) to estimate the distributions of the contact pressure between the contact elements of the clutch system under different working conditions has been developed and the main findings are discussed. Furthermore, the effect of modules of elasticity (contact stiffness) on the distribution of contact pressure of the mating surfaces was investigated. Also, the results encompass the deformations of the contacting surfaces for different cases. This work could provide a fundamental intermediate step to obtain a partial solution to the thermos-elastic problem in order to compute the thermal-driven deformations and stresses in the automotive clutches and brakes under different working conditions.

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“…Yeo and Barber (1996); Du et al (1997), Al-Shabibi and Barber (2002), Al-Bahkali and Barber (2006), Al-Shabibi and Barber (2009) investigated the thermo-mechanical problem of different sliding systems such as friction clutches and brakes using analytical and numerical approaches. The reduced order model approximation was developed to describe using one or more dominant perturbation (eigenfunctions).…”

Section: Introductionmentioning

confidence: 99%

Thermal stress analysis of dry friction clutches

Abdullah

Schlattmann

Jobair

et al. 2018

ILT

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Purpose The purpose of this paper is to present an approach to compute accurately the distributions of the frictional heat generated, contact pressure and thermal stresses at any instant during the sliding period (heating phase) of the single-disc friction clutch system works in the dry condition and the complex interaction among them. Design/methodology/approach Numerical work was achieved using the developed elastic and thermal finite element models (axisymmetric models) to simulate the engagement of the single-disc friction clutch system. Findings The change of distribution of contact pressure during the sliding period (heating phase) affects significantly the magnitude and distribution of the produced thermal stress. The high local heat generated appeared in the contacting surfaces because of the non-uniformity of the distribution of contact pressure during the heating phase (sliding time) and this will dramatically increase the thermal stresses. Originality/value Sequentially coupled thermal-mechanical approach was developed to investigate the thermal stresses problem in automotive clutches under dry conditions. This approach is considered a promising approach to investigate the effect of material, sliding time, torque function, etc., on the thermal stresses of different types of friction clutch.

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Transient Solution of the Unperturbed Thermoelastic Contact Problem

Cited by 18 publications

References 5 publications

Thermal and thermoelastic problems in dry friction clutch: A comprehensive review

Thermal and thermoelastic problems in dry friction clutch: A comprehensive review

Three-Dimensional Finite Element Analysis of Contact Problem in Dry Friction Clutches

Thermal stress analysis of dry friction clutches

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