Tribology Lubricants and Lubrication 2012 Part 2 docx

... m WWjrjjW mmm l ⎛⎞ ⎜⎟ ′′ =+−−+ ⎜⎟ ⎝⎠ θ ϕ θϕ ϕ (9A) () () 2 2 22 2 2 2 2 cos 31cos3 cos CC R P R r IImhrI mWmrj W l ⎛⎞ ⎡ ⎤ ′ =+ + + + − + ⎜⎟ ⎢ ⎥ ⎣ ⎦ ⎝⎠ θ θθ ϕ (10A) () () 2 2 2 cos cos 2tantan cos cos 23 22 1sincos2 32 R PR R rr II ll mW ... ⎢⎥ − ⎢⎥⎢⎥ ⎢⎥ ⎢⎥ ⎢⎥ ⎢⎥⎢⎥ ⎢⎥ ⎣⎦ ⎣⎦ ⎣⎦ ⎣⎦⎣⎦ − − + − −         32 32 2 1 22 11 32 32 2 2 12 6 00 12 6 00 64 00...

Ngày tải lên: 19/06/2014, 15:20

... general, complex three- Tribology - Lubricants and Lubrication 42 21 11 2 SS EE + νν = ,=− (4) into Eq. (2) ends up with the following expression: () 2 ,2 1 12 1 sin 2 SS ϕψ ϕ = σψ+σ+σ ε ... 4.1, Figure 21 c). The Tribology - Lubricants and Lubrication 54 to be 29 ° and 22 ° (see Figures 20 c, 21 b) for the inner ring of bearing N° 1 and...

Ngày tải lên: 19/06/2014, 15:20

... AFC 2. 0 0,05 0,1 0,15 0 ,2 0 ,25 N 2 dry N 2 humi d H 2 dry H 2 humid CH 4 dry CH 4 humid COF DLC AFC 1 AFC 2 MoS2 Fig. 8. Friction coefficients of several solid lubricants in inert and reactive ... coatings are also strong and show low residual Tribology - Lubricants and Lubrication 27 6 0 20 40 60 80 100 0 20 40 60 80 100 120 Stacking fault energy...

Ngày tải lên: 19/06/2014, 15:20

... materials and surface coatings intended for gear manufacturing. Many test methods described in international and national standards can be Tribology - Lubricants and Lubrication 320 Michalczewski, ... Tribology - Lubricants and Lubrication 318 0 5 10 15 20 25 30 35 40 steel / steel WC/C / steel WC/C / WC/C steel / WC/C Gear ... Michalczewski, R. (20 08). Ch...

Ngày tải lên: 19/06/2014, 14:20

... orders@intechweb.org Tribology - Lubricants and Lubrication, Edited by Chang-Hung Kuo p. cm. ISBN 978-953-307-371 -2 Tribology - Lubricants and Lubrication 6 are defined and can be derived ... Lenses 22 3 Nobuyuki Tadokoro Chapter 10 Lubricating Oil Additives 24 9 Nehal S. Ahmed and Amal M. Nassar Part 3 Solid Lubricants and Coatings 26 9 Chapte...

Ngày tải lên: 19/06/2014, 15:20

... approximation (μ=μ > ): ()() 0 sinh 2 sin 2 sinh sin 1 sin 2 cos exp cosh2 cos2 yy p σ ⎛⎞ α+μ β = αβ− − β−μβ −α ⎜⎟ α− β ⎝⎠ (7) () 2 222 22 2 22 11 sinh 4 , for 0 2 yza yza az ay a ⎡⎤ α =+−++−+ ... et al., 20 05; Hiraoka et al., 20 06; Holweger & Loos, 20 11; Iso et al., 20 05; Kino & Otani, 20 03; Kohara et al., 20 06; Kotzalas & Doll, 20 10; Luyckx,...

Ngày tải lên: 19/06/2014, 15:20

... the formula following from the dependence (34): () () () () ()() () () 12 13 2 32 1 23 3 12 32 21 23 1 13 23 2 1 21 21 21 ln ln ; ln ln ln ; exp TT T TT T C TT TT TC TC CC TT CT μμ μμ μμ μμ μ μ μ ⎡⎤ ⎛⎞ ⎛⎞ −− ... () () () 33 21 2 1 2 1()() 12 12 2 2 hh ww gg h hh zz rzt r θθωω β βθθθ ϕμ ϕ μ ϕ ⎡⎤⎡⎤ ∂∂∂∂−∂ −∂∂ += + + ⎢⎥⎢⎥ ∂∂∂∂ ∂ ∂∂ ⎢⎥⎢⎥ ⎣⎦⎣⎦ . (1) Tribology -...

Ngày tải lên: 19/06/2014, 15:20

... diameter Tribology - Lubricants and Lubrication 128 Knowing the friction torques of the sun gear its bearing efficiency can be calculated using the following equation: 22 2 22 2 () () 1 res res Bearing vm vm MMd Md MM ω η ω ⎡⎤ −⋅ ⎣⎦ ==− ⋅ ... d m y = 1,72x 0,9448 R 2 = 0,9997 0 400 800 120 0 1600 20 00 0 500 1000 1500 20 00 dm [mm] D [mm] (a) (b) C - d m y...

Ngày tải lên: 19/06/2014, 15:20

... the following form: 22 22 11 22 1 2 12 22 22 2 21 21 22 22 11 22 1 2 12 22 22 2 21 21 () 1 , () 1 . r pr pr p p rr rr rr r pr pr p p rr rr rr r ϕ σ σ −− =− −− −− =+ −− (28 ) Assuming that the ... of the form: () () () () () () 2 12 1 21 2 22 12 12 2 2 12 1 21 2 22 12 12 2 2 12 1 21 2 2 12 12 11 ln 1 ln , 21 ln 1 11 1ln 1 ln , 21 ln...

Ngày tải lên: 19/06/2014, 15:20

... NOT INCLUDED ON THE GROUPS I, II, III and IV ( 1 ) ASTM D 20 07 ( 2 ) ASTM D 26 22 or ASTM D 429 4 or ASTM D 4 927 or ASTM D 3 120 ( 3 ) ASTM D 22 70 Table 2. Base oils API classification Mineral ... esters (25 %) and polyglycols (10%) (Murphy et al., 20 02) . The most used synthetic base oils are the polyalphaolefins, and the synthetic oils have as an Tribology - Lub...

Ngày tải lên: 19/06/2014, 15:20