Frictionally-excited thermoelastic instability in functionally graded material

Jang, Yong Hoon; Sk, Ahn

doi:10.1016/j.wear.2006.11.011

Cited by 44 publications

(18 citation statements)

References 11 publications

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“…The engine side face of the friction lining couples with the flywheel while the transmission side couples with the pressure plate. When a clutch is engaged, the relative motion due to slippage between the contacting surfaces of a clutch system results in high surface temperatures which may lead to the surface cracks, enhanced wear rate as well as permanent distortions which can cause premature failure of the contacting surfaces [1][2].…”

Section: Introductionmentioning

confidence: 99%

Dry Friction Clutch Disc of an Automobile under Transient Thermal Load: A Comparison of Friction Lining Materials

Ali

Shah

et al. 2017

MATEC Web Conf.

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Abstract. This paper shows the comparison of temperatures produced in a dry friction clutch disc with different materials during a single engagement to assist in clutch plate design and analysis. A study of usage of different materials for friction lining of clutch disc is required, which will provide improved performance and enhanced life. This investigation is modelled mathematically and solved numerically using finite element method. ANSYS ® 15.0 is a dedicated finite element package used for determining the temperature distribution across a clutch disc. In the present work, an investigation of a conventionally used harmful friction lining material asbestos is compared with carbon-carbon composite, S2-glass fibre and aluminium metal matrix composite. The transient thermal analysis of a clutch disc with different materials is performed and the temperature distribution on the clutch system is compared.Simulation results indicate that all the values of the temperature obtained from the analysis of aluminium metal matrix are less than those of asbestos based lining material, therefore clutch disc made up of aluminium metal matrix composite will assure the extended service life and the longer stability due to the fact that the temperature responsible for the wear and tear has been reduced. Furthermore, the slipping time is also considered in this investigation.

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Section: Introductionmentioning

confidence: 99%

Dry Friction Clutch Disc of an Automobile under Transient Thermal Load: A Comparison of Friction Lining Materials

Ali

Shah

et al. 2017

MATEC Web Conf.

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“…According to Barik et al [28], Choi and Paulino [43], Jang and Ahn [29], Pauk [31], and Zhou and Lee [48], the steady-state heat conduction equation of the graded layer can be given as…”

Section: Formulation Of the Thermal-elastic Contact Modelmentioning

confidence: 99%

“…When brakes are applied to a moving system, the kinetic energy will be transformed into heat energy, which does not dissipate fast enough into the air stream. As a result, high temperatures and thermal stresses will produce disadvantageous effects such as surface cracks or permanent distortions [28,29]. The pressure between contact surfaces may also be affected by the thermal effect.…”

Section: Introductionmentioning

confidence: 99%

Thermo-contact mechanics of a rigid cylindrical punch sliding on a finite graded layer

Chen

Peng

2012

Acta Mech

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A steady-state thermo-contact model of a rigid insulated cylinder of radius R sliding on a finite graded elastic layer is studied, whose Young's modulus, thermal conductivity coefficient and thermal expansion coefficient vary exponentially in the thickness direction. The transfer matrix method and Fourier integral transform technique are used to obtain a Cauchy-type singular integral equation for the contact stresses. Numerical calculation yields the interface traction and temperature distributions below the rigid punch. It shows that crack damage in the finite graded layer due to the frictional sliding can be prevented by several alternative ways, such as decreasing the shear modulus ratio of the surface to the bottom, decreasing the friction coefficient, increasing the thickness of the finite graded layer, increasing the thermal conductivity coefficient ratio of the surface to the bottom or increasing the sliding velocity. The finding should be very useful for the design of novel graded materials with potential applications in aerospace, tribology, coatings, etc.

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“…The localized hot spot will cause high local stress that lead to material degradation and failure. Thermal deformation can also initiate major problems such as variation of coefficient of friction of the brake pad, brake fade and vapor lock [7].…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis on motorcycle disc brake geometry

Talib

Ismail

2017

AIP Conference Proceedings

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Abstract.Braking is a phase of slowing and stop the movement of motorcycle. During braking, the frictional heat was generated and the energy was ideally should be faster dissipated to surrounding to prevent the built up of the excessive temperature which may lead to brake fluid vaporization, thermoelastic deformation at the contact surface, material degradation and failure. In this paper, solid and ventilated type of motorcycle disc brake are being analyse using Computational Fluid Dynamic (CFD) software. The main focus of the analysis is the thermal behaviour during braking for solid and ventilated disc brake. A comparison between both geometries is being discussed to determine the better braking performance in term of temperature distribution. It is found that ventilated disc brake is having better braking performance in terms of heat transfer compare to solid disc.

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Frictionally-excited thermoelastic instability in functionally graded material

Cited by 44 publications

References 11 publications

Dry Friction Clutch Disc of an Automobile under Transient Thermal Load: A Comparison of Friction Lining Materials

Dry Friction Clutch Disc of an Automobile under Transient Thermal Load: A Comparison of Friction Lining Materials

Thermo-contact mechanics of a rigid cylindrical punch sliding on a finite graded layer

Thermal analysis on motorcycle disc brake geometry

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