Hydrodynamic Lubrication 2009 Part 9 pot
Hydrodynamic Lubrication 2009 Part 9 pot
... triangular cross section as shown in Fig. 7 .9. In an axisymmetrical case, (1/r)(∂u θ /∂θ) = 0, rθ = 0, and θz = 0 hold in the above strain equations. Fig. 7 .9. Mesh division of a cylindrical rubber ... h 0 = 148 7 Squeeze Film Fig. 7.7. Serial photographs of cavitation [9] 152 7 Squeeze Film f i = a ij d j + b ij H j (7. 39) where d j and f j are the displacement and the force applied...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2009 Part 5 potx
... computers. For example, Someya ( 196 3)[17] ( 196 4)[ 19] ( 196 5) [23] performed many detailed numerical computations of this kind of problem in 5.2 Oil Whip Theory 69 1 R j 2 d dψ h 3 dp dψ = 6µU 1 R j dh dψ + ... explain the oil whip phenomenon satisfactorily. In calculating the oil film force, Hori ( 195 5)[6, 7]( 195 8)[14]( 195 9)[15, 16] (1) used G ¨ umbel’s (or the half-Sommerfeld...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2009 Part 6 pot
... rpm L = 331 mm ω st = 5 094 rpm c = 0 .99 3 mm ω = 3600 rpm η = 5.6 mPa·s As an example of an actual earthquake, the seismic wave in the east–west direc- tion (maximum 175 .9 Gal) and that in the ... p 24 = ∂ 2 p ∂X 2 X 4 0 (5.86) 92 5 Stability of a Rotating Shaft — Oil Whip Table 5.1. Rotor dimensions Rotor lm I p I d N c N s LRc µ (mm) (kg) (kg·mm) (kg·mm) (rpm) (rpm) (mm) (mm) (mm) (m...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2009 Part 7 pot
... 5 .90 31 -2.1143 = 2 -2.4468 0 .97 12 -2.1143 2.5770 = 11 = 12 = 22 = 13 = 14 = 23 = 24 23.2 595 -0.1478 -8 .97 69 -9. 793 7 1 .99 34 -3.0 892 -2.43 69 -7.7506 -0.8730 3.3 898 2.0613 5.3423 -2.7628 3. 099 5 As ... ASME, Vol. 78, 195 6, pp. 97 5 - 98 3. 12. V.T. Morgan and A. Cameron, “Mechanism of Lubrication in Porous Bearings”, Proceed- ings of Conference on Lubrication and Wear, IM...
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Hydrodynamic Lubrication 2009 Part 11 pot
... k o [W/(m ◦ K)] [kJ/(kg ◦ K)] (kg/m 3 ) Transformer oil 7.36 0.140 1 .97 862 Turbine oil ( #90 ) 19. 2 0.131 1 .95 8 59 Turbine oil (#140) 46 .9 0.130 1 .94 865 Fig. 8.15. Temperature dependence of the oil viscosity ... sum of part of the supply oil q in and part of the recirculated oil q r as follows: q st = η in q in + η mix q r (8.74) where η in is the ratio of the supply oil actual...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2009 Part 13 pot
... = h − h 0 y 0 dy dy ν + ν t h 0 dy ν + ν t (9. 76) If Eq. 9. 65 is used, the five equations, Eqs. 9. 60, 9. 61, 9. 69, 9. 70, and 9. 74 form a closed set of equations with respect to the five unknowns ... [31]). In the- oretical calculations, Eqs. 9. 60, 9. 61, and 9. 74 are solved simultaneously under the boundary conditions given in Eqs. 9. 71, 9. 72, 9. 62, 9. 63 and the...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2011 Part 9 pot
... 10, October 196 5, pp. 1 896 - 190 0. 5. M.M. Reddi, “Finite-Element Solution of the Incompressible Lubrication Problem”, Trans. ASME, Journal of Lubrication Technology, Vol. 91 , July 196 9, pp. 524 ... Basic Equations for Thermohydrodynamic Lubrication Hydrodynamic lubrication that takes heat generation and temperature rise into con- sideration is called thermohydrodynamic lubri...
Ngày tải lên: 11/08/2014, 08:21
Tribology Lubricants and Lubrication 2012 Part 9 pot
... Viscosity, cP, @ 90 °C 396 00 396 50 396 80 397 00 397 10 397 50 398 91 ASTM D- 1 89 Yield stress, D/cm 2 60.2 61.3 62.1 62 .9 63.6 64.3 65.0 Four ball weld load, Kg 160 162 165 166 168 1 69 170 ASTM ... 2.40 0 .95 8 1.50 0.832 1.10 0.186 0.777 1.46 1.04 0 .91 9 0. 791 0. 492 1.11 0. 493 1.81 3.11 1.22 1.11 2. 79 1.1. 1.41 0 .95 3 1. 19 0.210 0.866...
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Applied Structural and Mechanical Vibrations 2009 Part 9 pot
... approximate solution (9. 39) , the kinetic and potential energy of our system can be written as (9. 40) where the matrices and are the symmetrical matrices of eqs (9. 36) and (9. 38). Next, by considering ... Motion in Elastic Solids, Dover, New York, 199 1. 9. Meirovitch, L., Principles and Techniques of Vibrations, Prentice Hall, Englewood Cliffs, NJ, 199 7. 10. Abramowitz, M. and Stegu...
Ngày tải lên: 10/08/2014, 20:20
Design Manual Metric 2009 Part 9 pot
... ( mm ) 26% 40% 16 16.05 53 81 21 21.23 92 142 27 27.00 1 49 2 29 35 35.41 256 394 41 41.25 347 535 53 52 .91 572 8 79 63 63.22 816 1256 78 78. 49 1258 193 5 91 90 .68 16 79 2583 103 102.87 2161 3324 Conduit ... 13.8 2 3.1 12.2 10 3.1 6 .9 16 .9 16 .9 3 2.7 18.3 10 2.7 9. 6 19. 6 18.2 4 2.4 24.4 10 2.4 12.0 22.0 19. 3 5 2.2 30.5 10 2.2 14.2 24.2 20.1 6 2.1 36.6 10 2.1 16.3 26.3 2...
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