Thermal behavior of friction clutch disc based on uniform pressure and uniform wear assumptions

Abstract

High temperatures appear in the contacting surfaces of a single-disc clutch system (friction clutch disc, flywheel and pressure plate) due to the relative motion between these parts during the sliding period. These high temperatures are responsible for several disadvantages such as increasing wear rate, surface cracks and permanent distortions. In some cases, these disadvantages may lead the contacting surfaces to failure before the expected lifetime. In this work, mathematical models of the friction clutch system (single-disc clutch) were built to find the temperature field during the sliding period (single engagement). Analysis has been completed using developed axisymmetric models to simulate the friction clutch system during the engagement. The surface temperatures are found based on uniform pressure and uniform wear assumptions.

Study on friction performance and mechanism of slipper pair under different paired materials in high-pressure axial piston pump

“…where T 1  and T 2  represent the characteristic temperatures at the contact areas between the slipper and the swashplate or at the two sides of the contact point (°C), q 1 and q 2 are the heat fluxes at the slipper and swashplate contact surfaces (J/(m 2 •s)), and q is the total friction heat flux (J/(m 2 •s)). The heat generated by the sliding friction between the slipper and swashplate is related to the thermal distribution coefficient K [16]: where  1 and  2 are the material density (g/mm 3 ), c 1 and c 2 are the specific heat (J/(kg•°C)), and λ 1 and λ 2 denote the thermal conductivities of the slipper and swashplate (W/(m•K)), respectively. The input heat fluxes at the contact surface of the slipper and the swashplate are as follows:…”

Physics-Informed Neural Network (PINN) for Solving Frictional Contact Temperature and Inversely Evaluating Relevant Input Parameters

“…The temperature rise generated by frictional heat plays a crucial role in determining the operating state of high-performance equipment [1]. Elevated frictional contact temperature has the potential to cause lubrication film breakdown, to diminish material functionality, or to intensify friction and wear between components, ultimately impacting the overall performance, lifespan, and reliability of the equipment [2][3][4]. Therefore, it is imperative to accurately evaluate the frictional contact temperature to guarantee the secure functioning of equipment.…”

Contact pressure distribution of Multi-cone friction pair considering capsizing moment and stress singularity at the interface end

“…For the traditional multi-plate clutches, some researchers have investigated the contact pressure distribution and temperature field distribution of friction pairs, mainly using the hypothetical method, analytic method, finite element method (FEM), and experimental method. For the hypothetical method, Abdullah and Schlattmann 4 assumed that contact surfaces obey the regularity of uniform pressure and uniform wear respectively to obtain the frictional heat flux on the contact surfaces. Alizadeh et al 5 used the average pressure on the clutch contact interface to calculate the wear reduction and investigate the lubrication regimes of wet cone clutches.…”