By Duncan Dowson, Gordon Robert Higginson (auth.), R. W. Snidle, H. P. Evans (eds.)
This quantity includes the complaints of the IUTAM Symposium on Elastohydrodynamics and Microelastohydrodynamics held in Cardiff from 1-3September 2004. It comprises 31 articles by way of best researchers within the box. The symposium curious about theoretical, experimental and computational concerns in elastohydrodynamic lubrication (EHL) either relating to delicate surfaces and in events the place the movie is of an analogous order or thinner than the outside roughness (micro-EHL). The final IUTAM Symposium during this basic quarter of touch of deformable our bodies used to be in 1974. The emphasis within the Symposium used to be upon primary matters akin to: answer tools; lubricant rheological versions, thermal results; either high and low elastic modulus occasions; human and alternative joints; fluid traction; dynamic results, asperity lubrication and the failure of lubrication; floor fatigue and thermal misery lower than EHL stipulations.
The publication may be necessary to these lively in simple elastohydrodynamics learn who desire to achieve an updated knowing of the topic from top specialists within the field.
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Additional info for IUTAM Symposium on Elastohydrodynamics and Micro-elastohydrodynamics: Proceedings of the IUTAM Symposium held in Cardiff, UK, 1–3 September 2004
Example text
Bair and P. Gordon Figure 9. Viscosity vs. pressure for squalane at several temperatures. Filled symbols are experimental data [25] and open symbols are from EMD + Stokes–Einstein calculations. 1. Additives can modify the pressure dependence of viscosity and the shear dependence of viscosity. Then EHL simulations using accurate rheological models would aid in lubricant formulation. 2. Comparing dry traction with lubricated traction may reveal the rheological contribution of elastic compliance of the substrate, possibly precluding a calculation of the elastic response of the liquid.
Instn. Mechn. , 1965–1966, 180, Part 3B, “Elastohydrodynamic Lubrication”, pp. 135–142. , 1916, Lubrication of gear teeth, Engineering (London), 102, 119–121. , 1951, Fundamental conclusions from the contact-hydrodynamic theory of lubrication, Izv. Uzbekist, Fil. Acad. Nauk. SSSR (OTN), 2, 209–223. , 1886, On the theory of lubrication and its application to Mr. Beauchamp Tower’s experiments, including an experimental determination of the viscosity of olive oil, Phil. Trans. R. , 177, 157–234. B.
4. 1 CONCLUSION Challenges to the EHL Field 1. Various definitions of the pressure-viscosity coefficient are in use, their values can vary by 2:1, and it is possible that the definitions are being manipulated to improve the apparent accuracy of film calculations. 2. A single engineering definition of alpha for general pressure-viscosity response accepted by the entire field is essential. Rheological Challenges and Opportunities for EHL 39 Figure 8. (a) Transport data of model 5-n-propyl-5-n-butylnonane interpreted through a Stokes–Einstein framework.