Initial Selection of Disc Brake Pads Material based on the Temperature Mode

Yevtushenko, A.A.; Grześ, Piotr

doi:10.3390/ma13040822

Cited by 12 publications

(9 citation statements)

References 20 publications

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“…The sintered cermet friction material FMC-11 contains 64% Fe, 15% Cu, 3% SiO 2 , 6% BaSO 4 , 3% asbestos and 9% graphite. Retinax FC-16L is a composite based on phenol-formaldehyde resins and reinforced with brass shavings [ 21 ]. The thermophysical and mechanical properties of materials and friction coefficients of selected pairs at the initial temperature are included in Table 1 .…”

Section: Numerical Analysismentioning

confidence: 99%

“…The exact obtained solutions to such problems during single braking cases are in the form of closed engineering formulas and allow for instant assessment of the temperature during braking under light conditions with sufficient accuracy; when the volumetric and the average temperatures of the friction surface do not exceed 100 °C and 200 °C, respectively [ 18 , 19 , 20 ]. Under heavy and medium braking conditions, when the volume temperature reaches values above 250 °C, the friction coefficient and properties of the friction pair materials change significantly due to the influence of temperature; therefore, numerical methods are used [ 21 , 22 ]. An attempt was made to use the exact solutions of linear thermal problems of friction to determine temperature during single braking of a system made of thermally sensitive friction materials [ 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

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Analytical Determination of the Brake Temperature Mode during Repetitive Short-Term Braking

2021

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An algorithm to determine the maximum temperature of brake systems during repetitive short-term (RST) braking mode has been proposed. For this purpose, the intermittent mode of braking was given in the form of a few cyclic stages consisting of subsequent braking and acceleration processes. Based on the Chichinadze’s hypothesis of temperature summation, the evolutions of the maximum temperature during each cycle were calculated as the sum of the mean temperature on the nominal contact surface of the friction pair elements and temperature attained on the real contact areas (flash temperature). In order to find the first component, the analytical solution to the one-dimensional thermal problem of friction for two semi-spaces taking into account frictional heat generation was adapted. To find the flash temperature, the solution to the problem for the semi-infinite rod sliding with variable velocity against a smooth surface was used. In both solutions, the temperature-dependent coefficient of friction and thermal sensitivity of materials were taken into account. Numerical calculations were carried out for disc and drum brake systems. The obtained temporal variations of sliding velocity, friction power and temperature were investigated on each stage of braking. It was found that the obtained results agree well with the corresponding data established by finite element and finite-difference methods.

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Section: Numerical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical Determination of the Brake Temperature Mode during Repetitive Short-Term Braking

2021

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“…(1) development of effective 2D and 3D computational models with the use FEM to determine the temperature of the friction clutch; (2) carrying out a comparative analysis of the temperature fields obtained by means of both models with the same friction work done; (3) investigating the effect of a carbon-containing additive in the structure of the new four friction materials on the temperature mode of the clutch. (4) When developing the computational models of frictional heating of the clutch, the authors used their previous experience, gained earlier in the modeling of the temperature mode of disc brakes [33,34].…”

Section: Introductionmentioning

confidence: 99%

An Effect of a Carbon-Containing Additive in the Structure of a Friction Material on Temperature of the Wet Clutch Disc

et al. 2022

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This paper consists of two parts. The first one contains a description and methodology of the composite material used as friction material in clutches. Four variants of such material, differing in the type of carbon additive (the elemental graphite, pencil graphite and foundry coke powder of various fractions) were considered. Thermal conductivity, thermal diffusivity as well as the specific heat all materials were determined experimentally. On the inertial IM-58 stand, a simulation of the braking process of the friction pair consisting of a steel disc with friction material and a counterpart in the form of a homogeneous steel disc was carried out. On this basis, averaged coefficients of friction, unchanging in the entire sliding process, were found for the four friction pairs. The experimental data obtained in the first stage were used in the second stage to develop two (2D and 3D) numerical models of the friction heating process of the friction pairs under consideration. For four variants of the friction material, a comparative spatial-temporal temperature analysis was performed using both models. It was found that a simplified axisymmetric (2D) model can be used to estimate the maximum temperature with high accuracy. The lowest maximum temperature (115.6 °C) obtained for the same total friction work was achieved on the friction surface of the material with the addition of GP-1.

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“…They concluded that instead of straight vanes if the pillar arrangement was made then it is possible to increase the fatigue life of the brakes. Yevtushenko and Grzes [19,20] have studied disc brake using spatial computational model. They studied temperature dependent coefficient of friction by considering contact temperature and vehicle velocity.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of disc brake system in high speed vehicles

Seelam

Hussain

Krishanmurthy

2021

Int. J. Simul. Multidisci. Des. Optim.

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Brakes are the most important component of any automobile. Brakes provide the ability to reduce or bring automobile to a complete stop. The process of braking is usually achieved by applying pressure to the brake discs. The main objective of this research paper is to propose an appropriate design and to perform analysis of a suitable brake rotor to enhance the performance of the high-speed car. The design of the brake disc is modelled using Solid works and the analysis is carried out using Ansys software. The analysis has been conducted by considering stainless steel and grey cast iron using same brake rotor design so that optimal choice of brake disc can be considered. The analysis considered involves static structural analysis and steady state thermal analysis considering specific parameters on brake rotor to increase the life of brake rotor. From the analysis it is found that the performance and life of disc brake depends upon heat dissipation. From the analysis results it can be concluded that grey cast iron has performed better as compared to stainless steel as this material has anti-fade properties which improves the life of the brake rotor.

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Initial Selection of Disc Brake Pads Material based on the Temperature Mode

Cited by 12 publications

References 20 publications

Analytical Determination of the Brake Temperature Mode during Repetitive Short-Term Braking

Analytical Determination of the Brake Temperature Mode during Repetitive Short-Term Braking

An Effect of a Carbon-Containing Additive in the Structure of a Friction Material on Temperature of the Wet Clutch Disc

Design and analysis of disc brake system in high speed vehicles

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