Engineering Tribology Episode 2 Part 11 doc

... Elsevier, 20 00. 45 G.W. Stachowiak and P. Podsiadlo, Surface Characterization of Wear Particles, Wear, Vol. 22 5 -22 9, 1999, pp. 117 1 -118 5. 46 P. Podsiadlo and G.W. Stachowiak, 3-D Imaging of Wear Particles ... body, three-body abrasive and erosive wear [109 ,110 ,113 ]. This is illustrated in Figure 11. 15 where TEAM LRN 496 ENGINEERING TRIBOLOGY 123 1 1 23 4 2 3 4 Very br...

Ngày tải lên: 05/08/2014, 09:19

... parameter ‘G’ of the Vogelpohl equation, i.e.: = h* 1.5 ∂ 2 M v ∂x* 2 + ( R L ) 2 ∂ 2 M v ∂y* 2 = FM v + G FM v + ∂h* ∂x* + 2w* (5.100) Damping coefficients are computed in a similar manner ... from downstream of upstream groove TEAM LRN 24 4 ENGINEERING TRIBOLOGY 1.5 2. 5 0 0.1 Groove len g th/axial bearin g len g th Dimensionless load 2 0 .2 0.3 0.4 0.5 0.6...

Ngày tải lên: 05/08/2014, 09:19

... shown in Figure 7 .20 [7]. 100 20 0 500 1000 20 00 5000 10 4 2 × 10 4 5 × 10 4 10 5 2 × 10 5 5 × 10 5 10 6 2 × 10 6 5 × 10 6 10 7 20 0 500 1000 20 00 5000 10 4 2 × 10 4 5 × 10 4 10 5 2 × 10 5 5 × 10 5 10 6 100 50 20 10 Piezoviscous-elastic Piezoviscous-rigid Lubrication ... 0.6 023 ln R y R x () = 1. 527 7 + 0.6 023 ln 0.03 0. 02 () · Contact Area Dimensions = 6 × 1.338...

Ngày tải lên: 05/08/2014, 09:19

... Vapor Phase Lubrication of Oleic Acid and TCP, Wear , Vol. 21 4, 1998, pp. 20 7 -21 1. TEAM LRN 4 02 ENGINEERING TRIBOLOGY 0 0.1 0 .2 0.3 µ 0 100 20 0 300 Temperature [°C] FIGURE 8.54 Experimental friction ... London, 1963, pp. 70-80. 37 A. Dyson, Scuffing, A Review, Tribology International, Vol. 8, 1975, Part 1: pp. 77-87, Part 2: pp. 117 - 122 . 38 H. Blok, Les Temperature...

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Ngày tải lên: 21/07/2014, 21:21

... 42 195 165 43 20 0 170 44 21 0 175 45 21 5 180 46 22 0 190 47 23 0 195 48 24 0 20 0 49 24 5 21 0 50 25 0 21 5 # CORRECT LISTENING READING 51 25 5 22 0 52 26 0 22 5 53 27 0 23 0 54 27 5 ... 21 80 35 22 85 40 23 90 45 24 95 50 25 100 60 26 110 65 27 115 70 28 120 80 29 125 85 30 130 90 31 135 95 32 140 100 33 145 110 34 150 115 35...

Ngày tải lên: 21/07/2014, 21:21

... stability [°C] 135 21 0 23 0 24 0 25 0 23 0 28 0 430 430 370 370 Kinematic viscosity [cSt] at -20 °C 170 193 16 85 115  20 0 850 1000 0°C 75 75 16 38 47 100 25 0 25 00 8000 440 40°C ... 180 185 20 0 26 0 24 0 29 0 none none Pour point [°C] -57 -60 - 62 -57 -65 -70 -70 -7 +4 -30 -67 Oxidative stability [°C] 24 0 29 0...

Ngày tải lên: 05/08/2014, 09:19

... sulfonate 0 0.05 0.10 0.15 0 .20  0 .25  0.30 0.35 0 40 80 120  160 20 0 24 0 20  60 100 140 180 22 0 Coefficient of friction Tem p erature [°C] FIGURE 3 .24 Effect of dispersants on ... grease classification [28 ]. 000 445 - 475 00 400 - 430 0 355 - 385 1 310 - 340 2 26 5 - 29 5 3 22 0 - 25 0 4 175 - 20 5 5 130 - 160 6 85 -...

Ngày tải lên: 05/08/2014, 09:19

... i.e.: H t = H f + H p TEAM LRN 26 2 ENGINEERING TRIBOLOGY and substituting gives: T = ⌠ ⌡ 0 2 ⌠ ⌡ 0 R 0 η r 3 dθdr + 2 n h r ⌠ ⌡ 0 2 ⌠ ⌡ R 0 η r 3 dθdr 2 n h R Assuming constant viscosity ... LRN 27 4 ENGINEERING TRIBOLOGY Equating flow through the orifice to the total lubricant flow through the bearing (6.19): πd 2 2 p s − p r 2 ( ( 1 /2 C d = p r h 3 η B Rearr...

Ngày tải lên: 05/08/2014, 09:19

... −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 × 5 × (3 × 10 −3 ) 2. 308 × 10 11 () 1/3 = ... p max = 3W 2 a 2 = 3 × 5 2 (6.88 × 10 −5 ) 2 = 504.4 [MPa] p average = W πa 2 = 5 π(6.88 × 10 −5 ) 2 = 336 .2 [MPa] · Maximum Deflection δ= 1.0397 W...

Ngày tải lên: 05/08/2014, 09:19