Abstract High temperatures are generated due to the sliding contacts between rubbing surfaces of friction clutch system. In this work, by considering effective thermal contact conductance under conditions, a simulation model two-dimensional transient temperature field disc was developed. A numerical solution obtain surface at different radii presented based on finite difference method. Compared...

The effective conductivity of material systems consisting of contacting particles is studied computationally using a model of monodisperse circular disks. The electrical or thermal conductivity is computed by modeling the relevant mechanical contact problem followed by a steady-state conduction analysis. The interparticle contact resistance is incorporated via the introduction of gap conductanc...

Since the deformation region involves interaction of electric-thermal-force coupling in electric hot incremental sheet forming, numerical simulation forming process is unusually difficult. Currently, thermal-force method adopted to simulate approximately whole process, and Joule heating effect often ignored. Therefore, especially significant for prediction accuracy process. In this paper, a nov...

Heat transfer across pressed joint is significantly governed by thermal contact conductance which in turn depends on thermophysical properties of materials contact, surface properties, pressure, working temperature and interstitials present at the interface. Application an effective technique to control ambient temperature. In study, joints cryogenic presence like silicon based conductive compo...

Phonon spectroscopy is used to investigate the mechanism of current-induced spin torques in nonmagnetic/ferromagnetic (N/F) point contacts. Magnetization excitations observed in the magneto-conductance of the point contacts are pronounced for diffusive and thermal contacts, where the electrons experience significant scattering in the contact region. We find no magnetic excitations in highly bal...

Measurements of the thermal properties of nanoscale electron systems have ignored the effect of electrical noise radiated between the electron gas and the environment, through the electrical leads. Here we calculate the effect of this photon-mediated process, and show that the low-temperature thermal conductance is equal to the quantum of thermal conductance, GQ = pi2kB2T/3h, times a coupling c...

In order to provide secure clamping with a low thermal conductance, some temperature detectors are held point contact sapphire ball clamps. While this method is increasingly common, the conductance across interface has not been well studied. We present direct measurement of such clamps between 200 and 600 mK, force approximately $$2.7\,\pm 0.3\,\hbox {N}/\hbox {clamp}$$ . The single sapphire-on...