Hydrodynamic Lubrication 2011 Part 10 pdf

... of pad R = 1.6 × 10 −1 m Radial extent of pad ∆R = 7.7 × 10 −2 m Angular extent of pad θ 0 = π/8rad Thickness of pad t = 2.5 × 10 −2 m Thermal conduction of pad k s = 1.08 × 10 2 W/m ◦ C heat ... surface of pad h c = 5.81 × 10 2 W/m 2 ◦ C Viscosity of oil (27 ◦ C) µ = 5.0 × 10 −2 Pa · s Viscosity index of oil β = 4.91 10 −2 ◦ C −1 Specific heat of oil c p = 2.09 × 10 3 J/kg ◦ C...

Ngày tải lên: 11/08/2014, 08:21

... 50 0 0.2 0.4 0.6 0.8 Real Part (kPa s/l) 0 10 20 30 40 50 -0.4 -0.2 0 0.2 0.4 Frequency (Hz) Imaginary Part (kPa s/l) 0 10 20 30 40 50 0 0.2 0.4 0.6 0.8 Real Part (kPa s/l) 0 10 20 30 40 50 -0.4 -0.2 0 0.2 0.4 Frequency ... 50 0 0.2 0.4 0.6 0.8 Real Part (kPa s/l) 0 10 20 30 40 50 -0.4 -0.2 0 0.2 0.4 Frequency (Hz) Imaginary Part (kPa s/l) 0 10 20 30 40 50 0 0.2 0.4 0....

Ngày tải lên: 21/06/2014, 19:20

... b 2 (s) three-element 80.5 1.68 10 −2 0.0 2.40 10 −2 0.0 four-element 80.5 2.63 10 −2 0.0 3.63 10 −2 6.94 10 −5 five-element 85.1 3.46 10 −2 6.22 10 −5 4.19 10 −2 1.30 10 −4 Coefficients of the ... Basic Equations for Thermohydrodynamic Lubrication Hydrodynamic lubrication that takes heat generation and temperature rise into con- sideration is called thermohydrodynamic lubricatio...

Ngày tải lên: 11/08/2014, 08:21

... Incompressible Lubrication Problems”, Trans. ASME. F, Vol. 91, No. 3, July 1969, pp. 524 - 533. 10. S. Wada, H. Hayashi and M. Migita, “Application of Finite Element Method to Hydrody- namic Lubrication ... (Part 1)” (in Japanese), Trans. JSME, Vol. 37, No. 295, March 1971, pp. 583 - 592. 11. S. Wada and H. Hayashi, “Application of Finite Element Method to Hydrodynamic Lu- brication P...

Ngày tải lên: 11/08/2014, 08:21

... Gas Film Lubrication Based on Lin- earized Boltzmann Equation: 1st Report - Derivation of a Generalized Lubrication Equation Including Thermal Creep Flow”, J. of Tribology, ASME, Vol. 110, 1988, ... Michell, Lubrication - Its Principles and Practice”, Blackie & Son Ltd., London and Glasgow, 1950. 5. A. Burgdorfer, “The Influence of the Molecular Mean Free Path on the Performance of H...

Ngày tải lên: 11/08/2014, 08:21

... and θ y are not equal to zero (nontrivial): f (s) = 0 (5.74) The shaft will be stable if the real parts of all the roots of the characteristic equation are negative. Figures 5.21a,ba and 5.21a,bb ... clearance. Three curves in the chart are the stability limit curves for three different values, 0, 5 and 10 of nondimensional parameter (1/ω 1 2 )(P 1 /mc), which is formed from the critical spe...

Ngày tải lên: 11/08/2014, 08:21

... Shaft — Oil Whip Fig. 5.38a-c. Stability charts for a shaft in porous bearings [36]. a Φ = 10 −2 , b Φ = 10 −4 , c Φ = 0 (nonporous bush) such as an earthquake. This was confirmed experimentally ... the grating glass is 200 mm × 200 mm × 10 mm, the line density of the grooves is 200/inch, and the width of a groove is equal to that of the transparent part between the grooves. The foil d...

Ngày tải lên: 11/08/2014, 08:21