A plane-inclined pad thrust bearing is 160mm wide and 40m sliding. The sliding velocity is 6m/s and the bearing is suppo thickness is always three times the outlet film thickness. A la pearing and Tellus 37 oil is supplied at an inlet temperature of the heat generated in the bearing is carried away by the o
A plane-inclined pad thrust bearing is 160mm wide and 40m sliding. The sliding velocity is 6m/s and the bearing is suppo thickness is always three times the outlet film thickness. A la pearing and Tellus 37 oil is supplied at an inlet temperature of the heat generated in the bearing is carried away by the o
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Design and select the most suitable lubrication system or bearing for the given problem, provide solutions with formulas and schematic diagram.
Transcribed Image Text:A plane-inclined pad thrust bearing is 160mm wide and 40mm long in the direction of
sliding. The sliding velocity is 6m/s and the bearing is supported so that the inlet film
thickness is always three times the outlet film thickness. A load 18kN is carried by the
bearing and Tellus 37 oil is supplied at an inlet temperature of 40°C. Assuming that 80%
of the heat generated in the bearing is carried away by the oil, describe the operating
characteristics of the bearing (Pm, Q, F, tm). Density is 875 kg/m³ and specific heat is c,
= 1.880 J/g-K.
Table 5.1 Variation of dimensionless coefficients Pm, Q, W and F for a wide hydrodynamic thrust bearing with film thickness ratio h2/h,
1.25
1.5
1.75
2.0
2.1889
2.25
2.5
2.75
3.0
3.25
3.5
3.75
4.0
K
0.25
0.5
0.75
1.0
1.1889
1.25
1.5
1.75
2.0
2.25
2,5
2.75
3.0
Pm
0.1333
0.2000
0.2338
0.2500
0.2555
0.2564
0.2571
0.2545
0.2500
0.2443
0.2381
0.2316
0.2250
0.5556
0.6000
0.6364
0.6667
0.6804
0.6923
0.7143
0.7333
0.7500
0.7647
0.7778
0.7895
0.8000
0.0884
0.1312
0.1511
0.1589
0.1602
0.1601
0.1577
0.1533
0.1479
0.1420
0.1360
0.1300
0.1242
0.9036
0.8437
0.8028
0.7726
0.7542
0.7488
0.7292
0.7122
0.6972
0.6836
0.6711
0.6594
0.6494
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