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

Heat Transfer ◽  
2021 ◽  
Author(s):  
Nasr A. Jabbar ◽  
Ihsan Y. Hussain ◽  
Oday I. Abdullah
Keyword(s):  
Dry Friction ◽  
Comprehensive Review ◽  
Friction Clutch ◽  
Dry Friction Clutch ◽  
Thermoelastic Problems

Analysis of friction-induced vibration leading to "EEK" noise in a dry friction clutch

2005 ◽  
Vol 53 (4) ◽  
pp. 138 ◽  
Author(s):  
Pierre Wickramarachi ◽  
Rajendra Singh ◽  
George Bailey
Keyword(s):  
Dry Friction ◽  
Friction Clutch ◽  
Dry Friction Clutch ◽  
Friction Induced Vibration

scholarly journals Micromechanical model of dry friction hybrid polymer composite clutch facings

2019 ◽  
Vol 4 (1) ◽  
pp. 335-340
Author(s):  
Roland Biczó ◽  
Gábor Kalácska
Keyword(s):  
Dry Friction ◽  
Micromechanical Model ◽  
Friction Material ◽  
Hybrid Polymer ◽  
Mechanical Stiffness ◽  
Clutch System ◽  
Friction Clutch ◽  
Dry Friction Clutch ◽  
Hybrid Polymer Composite ◽  
Tribological Contact

Modelling the complex coupled thermomechanical and tribological contact of a dry friction clutch system between cast iron flywheel and scatter-wound hybrid composite clutch facing requires a thought through investigation of the friction material properties and behaviour. Challenges of the creation of a mechanical stiffness matrix for such a complex material are described in this paper along with simplification ideas and solutions.

An Investigation Into the Thermal Behavior of the Grooved Dry Friction Clutch

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Oday I. Abdullah ◽  
Josef Schlattmann
Keyword(s):  
Dry Friction ◽  
Three Dimensional ◽  
Heat Content ◽  
Friction Material ◽  
Area Ratio ◽  
Friction Clutch ◽  
Transient Simulations ◽  
Dry Friction Clutch ◽  
Element Technique ◽  
Nominal Contact Area

The heat generated during the sliding period at the initiation of engagement in friction clutches is considered to be one of the main reasons for the failure of the friction material. One way to reduce the risk of this problem is to increase the rate of heat transfer by convection or, in other words, reduce the heat content of the friction material (internal energy) and thereby increase the lifecycle of the friction clutch. In this paper, the finite element technique has been used to study the effect of radial circumferential grooves on the temperature distribution and the amount of energy transferred by convection for a dry friction clutch disk during a single engagement, assuming a uniform distribution for the thermal load between the contact surfaces (i.e., uniform wear on clutch surfaces). Three-dimensional transient simulations are conducted to study the thermoelastic coupling of the problem. The effect of the groove area ratio (GR, defined as the groove area divided by the nominal contact area) is investigated. Furthermore, this paper presents the equations for energy considerations and energy balance at any time for the friction clutch system. The numerical results show that the amount of energy transferred by convection from the friction material can be controlled (within a limitation) by adjusting the value of the groove area ratio. Commercial ANSYS13 software has been used to perform the numerical computations in this paper.

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

2017 ◽  
Vol 124 ◽  
pp. 07003 ◽  
Author(s):  
Anosh Ali ◽  
Liaqat Ali ◽  
Samiur Rahman Shah ◽  
Mushtaq Khan ◽  
Syed Husain Imran ◽  
...  
Keyword(s):  
Dry Friction ◽  
Thermal Load ◽  
Friction Clutch ◽  
Dry Friction Clutch ◽  
Transient Thermal ◽  
Friction Lining

scholarly journals Temperature and thermal stresses distributions in a dry friction clutch

2020 ◽  
Vol 58 (2) ◽  
pp. 351-360
Author(s):  
Katarzyna Topczewska ◽  
Josef Schlattmann ◽  
Oday Abdullah
Keyword(s):  
Dry Friction ◽  
Thermal Stresses ◽  
Friction Clutch ◽  
Dry Friction Clutch

Design for reliability of automotive systems; case study of dry friction clutch

2017 ◽  
Vol 8 (3) ◽  
pp. 572-583 ◽  
Author(s):  
Mohammad Pourgol-Mohammad ◽  
Amirmohsen Hejazi ◽  
Morteza Soleimani ◽  
Pejman Ghasemi ◽  
Alireza Ahmadi ◽  
...  
Keyword(s):  
Dry Friction ◽  
Design For Reliability ◽  
Automotive Systems ◽  
Friction Clutch ◽  
Dry Friction Clutch

Tribological Properties of PM Cu-Based Dry Friction Clutch

2013 ◽  
Vol 545 ◽  
pp. 163-170 ◽  
Author(s):  
Jirapat Prapai ◽  
Monnapas Morakotjinda ◽  
Thanyaporn Yotkaew ◽  
Bhanu Vetayanukul ◽  
Ruangdaj Tongsri ◽  
...  
Keyword(s):  
Friction Coefficient ◽  
Wear Rate ◽  
Tribological Properties ◽  
Dry Friction ◽  
Sintered Density ◽  
Sintering Temperature ◽  
Chemical Compositions ◽  
Friction Clutch ◽  
Frictional Materials ◽  
Dry Friction Clutch

Sintered Cu-based frictional materials were developed by using powder metallurgy (PM) method. The materials are aimed for application in a passenger car as a dry friction clutch. Effects of sintering temperature and composition on mechanical and tribological properties were determined. It was found that improper frictional material formulations caused inferior properties, particularly when the sintering temperatures were increased. Admixing of high Sn content (8 wt. %) resulted in decreases of sintered density and hardness with increasing sintering temperature. High Sn contents caused swelling of the sintered materials. Tribological properties (friction coefficient and wear rate) of the sintered specimens of the investigated materials were insensitive to sintering temperatures in the range of 800-950 °C but they were strongly influenced by chemical compositions. Addition of 3 wt. % graphite lowered the friction coefficient, which subsequently lowered the wear rate of the sintered material. To increase friction coefficient, one of the crucial properties of the dry friction clutch, of the sintered Cu-based frictional materials, two approaches were employed. In the first approach, substitution of graphite by SiO2 powders could improve the material friction coefficient. In the second approach, decreases of graphite content from 3 to 1 wt. % and of Sn content from 8 to 2 wt. % were conducted. The latter approach not only improved friction coefficient but also improved sintered density and hardness of the Cu-based frictional materials.

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