Hydrodynamic Lubrication 2009 Part 14 pps
Hydrodynamic Lubrication 2009 Part 14 pps
... “Turbulent Lubrication Theory Using the Frictional Law (First Report, Derivation of Turbulent Coefficient and Lubrication Equation)” (in Japanese), Trans. JSME, Vol. 44, No. 382, June 1978, pp. 2140 - 2148 . 27. ... 87 half-speed whirl 65 heat generation 161 Hermann’s variational method 150 Holm, R. 6 hydrodynamic bearing 23 hydrodynamic lubrication 3, 6, 9 hydrostatic bearing 23 infin...
Ngày tải lên: 11/08/2014, 08:21
Hydrodynamic Lubrication 2009 Part 10 pps
... Basic Equations for Thermohydrodynamic Lubrication Hydrodynamic lubrication that takes heat generation and temperature rise into con- sideration is called thermohydrodynamic lubrication, orTHL. To ... inside solid parts: ∂ 2 T ∂x 2 + ∂ 2 T ∂y 2 + ∂ 2 T ∂z 2 = 0 6. Equation of heat transfer at the surface of solid parts: Q = h c (T s − T a ) 7. Equation of heat expansion of solid parts:...
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Applied Structural and Mechanical Vibrations 2009 Part 14 ppsx
... force sensitivity S Vf in volts per newton (V/N) is given by (14. 21) where again depends on the mounting configuration. Both eqs (14. 20) and (14. 21) can be expressed in the Fourier domain by replacing ... an exception. 14. 7 Absolute-motion measurement 14. 7.1 The seismic instrument Consider a single-degree-of-freedom mass-spring-damper system mounted within a case, as shown in Fig....
Ngày tải lên: 10/08/2014, 20:20
Hydrodynamic Lubrication 2009 Part 5 potx
... the oil whip phenomenon satisfactorily. In calculating the oil film force, Hori (1955)[6, 7](1958) [14] (1959)[15, 16] (1) used G ¨ umbel’s (or the half-Sommerfeld) boundary condition instead of Sommer- feld’s ... point of the journal, as stated before. Fig. 5.8a,b. Small vibrations (a) and large vibrations (b) [14] Large vibrations mean such vibrations (whirling) of the shaft that it bends c...
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Hydrodynamic Lubrication 2009 Part 6 pot
... state because of an earthquake. 5.2 Oil Whip Theory 85 Fig. 5 .14. Stability chart for small vibrations and for large vibrations [14] . a 1 a 2 shows the path followed by a light shaft as the ... amplitude, the journal center performs steady revolution around the bearing center for the major part of the bearing length, as shown in Fig. 5.8a,bb. Therefore, by setting the time derivative .....
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Hydrodynamic Lubrication 2009 Part 7 pot
... 36.51 d ij j = 1 = 2 = 3 = 4 i = 1 3.4255 1.2681 5.9031 -2. 1143 = 2 -2.4468 0.9712 -2. 1143 2.5770 = 11 = 12 = 22 = 13 = 14 = 23 = 24 23.2595 -0 .147 8 -8.9769 -9.7937 1.9934 -3.0892 -2.4369 -7.7506 -0.8730 ... - 140 8. 25. A. Cameron, “Principles of Lubrication , Longman, London, 1966 26. F.K. Orcutt and E.B. Arwas, “The Steady State and Dynamic Characteristics of a Full Cir- cular Bea...
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