Tham khảo tài liệu 'new tribological ways part 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 474 New Tribological Ways the mass-conserving lubrication problem have been proved while an original approach to the thermal problem has been explained. The numerical examples show how the quasi-3D approach has enhanced the reliability of the mass- and energy-conserving lubrication analysis proposed by Kumar and Booker. Indeed TEHD models are very sensitive to boundary conditions which choice is particularly difficult in all of the multi-physics simulations. Future work will adapt the devised method to detailed transient analyses and it will further extend the model flexibility by including advanced turbulent lubrication theory. 8. Appendix Let f and F be scalar and vector-valued functions respectively. A variant of the divergence theorem states JQ F-Vf f V-F dQ 1 f F-n dr A1 where r is the boundary of Q oriented by the outward-pointing unit normal n. If Vr is the Eulerian velocity at the boundary r the Reynolds transport theorem generalizes the Leibniz s rule to multidimensional integrals as follows a L fdQHfHr f V-n dr A2 9. References Banwait SS. Chandrawat HN. 1998 . Study of thermal boundary conditions for a plain journal bearing. Tribol. Int. Vol. 31 No. 6 pp. 289-296 ISSN 0301-679X Bathe . 1996 . Finite Element Procedures Prentice-Hall ISBN 0-13-301458-4 1 Upper Saddle River New Jersey Booker J. F. Huebner K. H. 1972 . Application of Finite Element Methods to Lubrication An Engineering Approach. ASME J. Lubr. Technol. Vol. 94 pp. 313-323 ISSN 0022-2305 Bonneau D. Hajjam M. 2001 . Modélisation de la rupture et de la formation des films lubrifiants dans les contacts élastohydrodynamiques. Revue Européenne des Eléments Finis Vol. 10 No. 6-7 pp. 679-704 ISSN 1250-6559 Bouyer J. Fillon M. 2004 . On the Significance of Thermal and Deformation Effects on a Plain Journal Bearing Subjected to Severe Operating Conditions. ASME J. Tribol. Vol. 126 No. 4 pp. 819-822 ISSN 0742-4787 Brugier D. Pasal . 1989 . Influence of elastic deformations of turbo-generator .
