Friction and Lubrication in Mechanical Design Episode 2 Part 12 potx

... data: h2 = 0.000 6in. , m = 0.000 9in. /in. , 18 spm, SAE 5 oil, 25 °C. at four different instances in time, as indicated by (a), (b), (c), and (d) in Fig. 13 .20 . The corresponding instantaneous ... sures ranging from 125 0 to 21 40 MPa (1.8 1 x 10’ - 3.10 x 10’ psi) and slid- ing speeds from 0.4 to 1.3 m/sec (943-3 1 42 in. /min). Temperature...

Ngày tải lên: 05/08/2014, 09:20

... (N/m2) x 106 (N/m2) 1 2 3 4 5 6 7 8 9 10 11 12 13 0. 025 1 0.0361 0. 025 1 0.036 1 0. 025 1 0.036 1 0 .2 198 0 .2 198 0 .2 198 0.031 I 0.031 1 0 .26 49 0 .26 49 3. 72 ... 7 Friction and Lubrication in Rolling/Sliding Contacts 7.1 ROLLING FRICTION The frictional resistance to rolling in dry conditions was extensively inves- tigat...

Ngày tải lên: 05/08/2014, 09:20

... data: h2 = 0.000 6in. , m = 0.000 9in. /in. , 18 spm, SAE 5 oil, 25 °C. at four different instances in time, as indicated by (a), (b), (c), and (d) in Fig. 13 .20 . The corresponding instantaneous ... 10 15 20 SpHd (in/ s) Figure 13 .24 m = 0.001 1 in. /in. , SAE 20 oil, 25 °C. Pressure-speed characteristic of slider bearing: h2 = 0.0010 in. , st...

Ngày tải lên: 05/08/2014, 09:20

... (N/m2) x 106 (N/m2) 1 2 3 4 5 6 7 8 9 10 11 12 13 0. 025 1 0.0361 0. 025 1 0.036 1 0. 025 1 0.036 1 0 .2 198 0 .2 198 0 .2 198 0.031 I 0.031 1 0 .26 49 0 .26 49 3. 72 ... the Plane Inclined Slider Bearing,” Proc. Inst. Mech. Engrs, 1963, pp. 34-44. Vol. 199(C2), pp. 95-1 02. Vol. 199(C2), pp. 103-1 11. 29 8-307. Vol. 2, pp. 52- 58. 1968, p...

Ngày tải lên: 05/08/2014, 09:20

... 1 .22 , k = 0. 026 . Drozdov and Gavrikov [ 171 investigated friction and scoring under conditions of simultaneous rolling and sliding with a roller test machine. The formula for determination ... 94,703, 189,406 ,28 4,109, and 378,8 12 N/m; the slide/roll ratios were 0,0.08,0.154,0 .22 2,0.345; the rolling speeds varied from 0.3 to 2. 76 m/s, and the sliding spe...

Ngày tải lên: 05/08/2014, 09:20

... 1 .22 , k = 0. 026 . Drozdov and Gavrikov [ 171 investigated friction and scoring under conditions of simultaneous rolling and sliding with a roller test machine. The formula for determination ... 94,703, 189,406 ,28 4,109, and 378,8 12 N/m; the slide/roll ratios were 0,0.08,0.154,0 .22 2,0.345; the rolling speeds varied from 0.3 to 2. 76 m/s, and the sliding spe...

Ngày tải lên: 05/08/2014, 09:20

... (12pin.), W = 378,812N/m (21 601bf /in. ), 10W30 oil, U1 = 3 .2 m/sec ( 126 in. /sec), R = 0. 023 4 m (0. 92 in. ). Figure 7.38 shows calculated coefficient of friction versus sliding/ rolling ... = 0.03 pm ( 12 pin.), W = 378,8 12 N/m (2 160 lbf /in. ), 10W30 oil, U1 = 3.2m/sec ( 12 6in. /sec). Figure 7.37 shows calculated coefficient of friction versu...

Ngày tải lên: 05/08/2014, 09:20

... alloys Invar “36” annealed H,M,80 annealed Monel C 27 0 29 6 22 4 25 2 27 0 27 0 22 4 29 6 I99 468 27 0 397 3 59 160 I80 384 27 6 24 2 26 0 22 0 21 6 746 22 0 22 6 26 2 340 27 0 29 6 ... 378,8 12 N/m (21 60 lbf /in. ), 10W30 oil, U1 = 3 .2 m/s ( 126 in. /sec), R = 0. 023 4m (0. 92 in. ). S = 0.03 pm (12pin.), W = 378,812N/m (21 60lbf /...

Ngày tải lên: 05/08/2014, 09:20

... alloys Invar “36” annealed H,M,80 annealed Monel C 27 0 29 6 22 4 25 2 27 0 27 0 22 4 29 6 I99 468 27 0 397 3 59 160 I80 384 27 6 24 2 26 0 22 0 21 6 746 22 0 22 6 26 2 340 27 0 29 6 ... 378,8 12 N/m (21 60 lbf /in. ), 10W30 oil, U1 = 3 .2 m/s ( 126 in. /sec), R = 0. 023 4m (0. 92 in. ). S = 0.03 pm (12pin.), W = 378,812N/m (21 60lbf /...

Ngày tải lên: 05/08/2014, 09:20