Engineering Tribology Episode 1 Part 1 pot

... 36°. 1 1. 3 0 0 .1 Groove len g th/axial bearin g len g th Dimensionless load 1. 2 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 4 1 Dimensionless side flow Load Side flow 2 3 1. 1 L/D ... viscosity × speed) 0.2 0.5 1 2 5 10 20 50 10 0 2 × 10 5 3 × 10 5 4 × 10 5 5 × 10 5 6 × 10 5 7 × 10 5 [dimensionless] Adiabatic Isothermal 0.05 Pas 0.5 Pas FIGURE 5 .16 C...

Ngày tải lên: 05/08/2014, 09:19

... and hexadecane with dissolved fatty acids of chain lengths 14 , 16 and 18 [43]. 0.2 0.5 1 2 5 10 20 0.0 01 0.002 0.005 0. 01 0.02 0.05 0 .1 0.2 0.5 1 Speed [m/s] Separation [nm] Stearic acid/ hexadecane (saturated) Pure ... additives can be found in [82]. TEAM LRN BOUNDARY AND EXTREME PRESSURE LUBRICATION 393 1 2 3 4 1 1 .1 1.2 1. 3 1. 4 1. 5 Relative chemical reactivity...

Ngày tải lên: 05/08/2014, 09:19

... the range of 1 × 10 -9 to about 12 .5 × 10 -9 [m], for ground surfaces about 0 .1 × 10 -9 - 10 × 10 -9 [m] while for shape turned surfaces ‘G’ is about 7.6 × 10 -9 [m] [20]; n 1 is the lowest ... level as shown in Figure 10 .17 . 10 −9 10 −3 10 −6 1 10 3 Sliding speed [mm/s] 0 0.5 1. 0 1. 5 2.0 µ Indium block Lead block Vertical load ≈ 3N FIGURE 10 .17 V...

Ngày tải lên: 05/08/2014, 09:19

... reduced scope of the course, Chapters 2 and 9 from Part I and Chapters 11 to 13 from Part II can be eliminated. For a further reduction, Chapter 3 from Part I can also be eliminated. I would like to ... excellent text for a graduate course in micro/nan- otribology. For a reduced scope of the course, Chapters 2, 3, and 10 (Part I) and Chapters 12 and 13 (Part II) can be elimina...

Ngày tải lên: 21/07/2014, 15:20

... Tekniska Hoegskolas Madlinar, Vol. 19 0, 19 57, pp. 1- 116 . 14 K.O. Olsson, Cavitation in Dynamically Loaded Journal Bearings, Chalmers University of Technology, 19 65, Goteborg. 15 D. Dowson, A.A.S. Miranda ... arc bearings. TEAM LRN HYDROSTATIC LUBRICATION 267 1 2 5 10  20 A 1 1. 5 2 3 5 ∞ R/R 0 B 10  0 .1 0.2 0.5 1. 0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0...

Ngày tải lên: 05/08/2014, 09:19

... = 1 E' + 1 −υ A 2 E A [] 1 2 1 −υ B 2 E B =+ 1 − 0.3 2 2 .1 × 10 11 [] 1 2 1 − 0.3 2 2 .1 × 10 11 ⇒ E' = 2.308 × 10 11 [Pa] · Contact Area Dimensions a = 3WR' E' () 1/ 3 = 3 × ... directions are: = 1 R x + 1 R ax 1 R bx = 1 10 × 10 −3 + =16 6.67 1 15 × 10 −3 ⇒ R x = 6 × 10 −3 [m] = 1 R y + 1 R ay 1 R by =+ 1 ∞...

Ngày tải lên: 05/08/2014, 09:19

... parameter U = 5.0500 × 10 -11 0.8 416 × 10 -11 0.8 416 × 10 -12 U = 5.0500 × 10 -11 0.8 416 × 10 -11 0.8 416 × 10 -12 20 × 10 −6 40 × 10 −6 60 × 10 −6 80 × 10 −6 10 0 × 10 −6 FIGURE 7 .17 Effects of speed ... 10 −3 1 −30 × 10 −3 () + 22 + 2 − 15 × 10 −3 1 15 × 10 −3 () − 1 −60 × 10 −3 1 −30 × 10 −3 () cos0° ] 1/ 2 + 1 15 × 10 −3 ( +...

Ngày tải lên: 05/08/2014, 09:19

... p max = πbl W = = 17 48.96 [MPa] π (1. 82× 10 −4 ) × (5 × 10 −3 ) 5 × 10 3 hence: 2.45 × 0.2 × (17 48.96 × 10 6 ) 1. 5 (46.7 × 7800 × 460) 0.5  2 − 1  = 18 4. 91 [°C] T f maxc = 6 × 10 −3 2.308 × 10 11 () 0.5 Frictional ... contacting ball Hertzian contact radius (18 0 µm) 90°C Minimum film thickness Inlet Outlet 10 0° 12 0° 11 0° 13 0° 14 0° 15 0° 16 0° 17...

Ngày tải lên: 05/08/2014, 09:19

... Sliding Line Contacts, Parts 1 and 2, Transactions ASME, Journal of Tribology, Vol. 10 6, 19 84, Part 1, pp. 10 4 -11 2, Part 2, pp. 11 3 -11 9. 39 C.C. Kweh, H.P. Evans and R.W. Snidle, Micro-Elastohydrodynamic ... Institute for Technology and Mechanical Engineering, Moscow, 19 49. 2 H.M. Martin, Lubrication of Gear Teeth, Engineering, London, Vol. 10 2, 19 16, pp. 11 9 -12...

Ngày tải lên: 05/08/2014, 09:19

... Vol. 13 , 19 70, pp. 17 9 -18 8. 11 5 S.C. Lee and H.S. Cheng, Scuffing Theory Modelling and Experimental Correlations, Transactions ASME, Journal of Tribology, Vol. 11 3, 19 91, pp. 327-334. 11 6 H.A. ... 336, 19 74, pp. 407- 419 . 11 7 S.M. Hsu, Boundary Lubrication: Current Understanding, Tribology Letters, Vol. 3, 19 97, pp 1- 11. 11 8 W.F. Bowman and G.W. Stachowiak, A Rev...

Ngày tải lên: 05/08/2014, 09:19