... fluid dynamics (CFD) model. Then, this method of combining nonlinear dynamic and CFD models is validated through the experimental verification. Subsequently, oil–air flow and temperature distribution inside the bearing chamber are studied at low and high speeds and light and heavy loads. The effect...

...-poitiers.fr 07 03 2007 12 12 2007 08 04 2008 elastomers mechanical contact numerical analysis seals (stoppers) shafts temperature distribution thermoelasticity Young's modulus radial lip seals thermoelastohydrodynamic local thermal effect The lubrication...

... equations with initial conditions were solved numerically using a multigrid multilevel technique. The performance characteristics of the thermoelastohydrodynamic line contact were presented with varying dimensionless time for the pressure distribution, temperature distribution, and oil film thickness...

... fields in the fluid, as well as the temperature distribution across the fluid and solid pad. Results show important transversal temperature gradients in the fluid, especially in the areas of minimal film thickness. This further justifies the use of a complete THD model such as the one employed...

... would attribute the formation of the dimple to the temperature distribution in the film as shown by the experimental results. The Couette flow considering the variation of viscosity across the oil film is defined as follows 10 : (1) u = u b + u d − u b   ∫ 0...

... friction temperature distribution third body thermal contact heat partition braking In frictional problems, two major difficulties remain in the thermal modeling of the components in sliding contact: (1) the coupling phenomena between tribological, mechanical and thermal behavior...

... for an isotropic media, where a simply-connected elastic body in a state of plane strain or plane stress remains stress free if the temperature distribution is harmonic and the boundaries are free of traction, the stress within the semi-infinite anisotropic media will generally not equal zero even if the boundary...

... the thermal effect in a HDB spindle motor. Matsuoka et al. 3 and Kita et al. 4 calculated the temperature distribution of a HDB spindle motor by using a thermodynamic approach. However, prior researchers did not include the variation of the clearance at the elevated temperature. Clearance of the journal...

... to determine the temperature distributions on contact surfaces. The interactions between pressure and temperature are considered through incorporating viscosity-temperature and density-temperature relations in the Reynolds equation, then solving the equation system iteratively. With the successful...

... viscosity modelling slip lubrication temperature distribution rheology elastodynamics hydrodynamics Elastohydrodynamic lubrication (EHL) is the mechanism that protects the surfaces of concentrated contacts such as those occurring in gears and rolling element bearings. In an EHL contact...

... and an elastic-plastic sphere with properties identical to those of the first layer were carried out to examine the effect of frictional heating on the deformation behavior of the medium. Results are presented for the temperature distribution and maximum temperature variation at the surface and the evolution...

.... 30 July 2002 28 January 2003 25 09 2003 mechanical contact rough surfaces sliding friction thermoelasticity temperature distribution fast Fourier transforms convolution algorithm theory Frictional heating may cause contact failure of components in various heavy-duty...

...Bjo¨rn Larsson The development of thermal bows in rotors is frequently reported. The cause of the bows is an asymmetric temperature distribution as a result of uneven heating. The heat source can be a friction contact between rotor and seal. Both partial and full annular rub can give asymmetric...

.... The babbitted bearing was typical of design in general use. A PTFE composite was applied instead of the babbitt to a similar bearing. Bearings were tested at different load-speed combinations in the fully flooded mode. Pad temperature distributions, collar temperatures and bearing friction torque were...

... the wheel surface temperature distribution when grinding ceramics and steels 9 11 12 14 . Hebbar et al. 9 and Chandrasekar et al. 12 showed that this temperature distribution could be identified with abrasive grain and wheel bond temperatures. It was also established that an abrasive grain cooled...

..., is also studied under varying direction and magnitude of misalignment torque. Our main focus was on hydrodynamic pressure, temperature distributions at the film/bush interface, oil flow rate, power losses and film thickness. The defects significantly improved the performance of the bearing. The minimum...

.... The influence of the angle between the minor axis and the entrainment vector on the position and shape of the dimple, the central and minimum film thickness, the temperature distribution and the frictional coefficient is discussed. Contributed by the Tribology Division for publication in the ASME JOURNAL...

...; revised manuscript received August 15, 2001. Associate Editor: J. L. Streator. 17 January 2001 15 August 2001 24 09 2002 disc drives hard discs vibrations rotation temperature distribution For the past decade, advanced computer chips and electronics have been...

... in the overall temperature distribution in the bearing. A simplified approach for determining this temperature is presented. An extensive set of experimental results performed by Maki and Ezzat (1980, ASME J. Lubr. Technol., 102 , pp. 8–14) is used for validation purposes. The results show that mixing...

... received February 8, 2000. Associate Technical Editor: J. Fre^ne. 13 August 1999 08 February 2000 performance evaluation machine bearings thermal analysis lubrication tribology temperature distribution Large variation in engine bearing load over a cycle needs a non-linear...