Kinematics and Mechanisms 2008 Part 6 potx

... F. 1935. Three thousand years of progress in the development of machinery and lubricants for the hand crafts. Mill and Factory. Vols. 16 and 17. Peachey, J., Van Alsten, J., and Granick, S. 1991. ... Instrum. 62 : 463 −473. Petroff, N. P. 1883. Friction in machines and the effects of the lubricant. Eng. J. (in Russian; St. Petersburg) 71 −140, 228−279, 377−4 36, 535− 564 . Rabino...

Ngày tải lên: 12/08/2014, 03:20

... ) net (Pa¢m=s) ¢ 10 6 Carbon graphite/alumina 100 000 3:5 ¢ 10 6 Carbon graphite/tungsten carbide 500 000 17:5 ¢ 10 6 Carbon graphite/silicon carbide > 500 000 > 17:5 ¢ 10 6 Friction or seal ... nitrile rubber is most common and suitable for oils and aqueous solutions, fluorocarbon is excellent for hot oils. Many of the elastomer materials are made into O-rings and find ap...

Ngày tải lên: 12/08/2014, 03:20

... F. 1935. Three thousand years of progress in the development of machinery and lubricants for the hand crafts. Mill and Factory. Vols. 16 and 17. Peachey, J., Van Alsten, J., and Granick, S. 1991. ... Instrum. 62 : 463 −473. Petroff, N. P. 1883. Friction in machines and the effects of the lubricant. Eng. J. (in Russian; St. Petersburg) 71 −140, 228−279, 377−4 36, 535− 564 . Rabino...

Ngày tải lên: 11/08/2014, 10:22

... restricted to moderate pressures and speeds. For valve stems and other reciprocating applications, soft packing can be used at high pressure and temperature. Figure 24. 16 Lip seal. The lip seal (oil ... can seal pressures to 20 MPa or even higher. As shown in Figs. 24 .6 and 24.7, the two metal parts are clamped tightly together and they are not supported by the elastomer. As the...

Ngày tải lên: 11/08/2014, 10:22

... macrotribology and micro/nanotribology and their significance. We then describe mechanisms of friction, wear, and lubrication, followed by micro/nanotribology. 21.1 History of Tribology and Its Significance ... Micro- and nanotribological techniques are ideal to study the friction and wear processes of micro- and nanostructures. Although micro/nanotribological studies are crit...

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... to grain) 0 .62 0.48 0. 164 (r) 0. 067 (s) Oak on oak (perpendicular) 0.54 0.32 0.072(s) Leather on oak (parallel) 0 .61 0.52 Cast iron on oak 0.49 0.075(n) Leather on cast iron 0. 56 0. 36( t) 0.13(n) Laminated ... humidity, normal pressure, and sliding velocity). Many materials show sliding speed and normal load dependence on the coefficients of static and kinetic friction in dry an...

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... impact, and repeated impact leads to pitting and erosive wear. Caviation erosion arises when a solid and fluid are in relative motion and bubbles formed in the fluid become unstable and implode ... adhesive- and abrasive-wear mechanisms. Of the aforementioned wear mechanisms, one or more may be operating in one particular machinery. In many cases wear is initiated by one mechan...

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... Elements 22.1 Threaded Fasteners 22.2 Clutches and Brakes Rim-Type Clutches and Brakes • Axial-Type Clutches and Brakes • Disk Clutches and Brakes • Cone Clutches and Brakes • Positive-Contact Clutches Gordon ... fibers to provide strength and ability to withstand high temperatures; various friction particles to obtain a degree of wear resistance and higher coefficient of fricti...

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... Specifications BS 364 3: Part 2, p. 10. British Standards Institute, London. Lingaiah, K. 1994. Machine Design Data Handbook. McGraw-Hill, New York. Matthews, G. P. 1 964 . Art and Science of Braking ... 1972, pp. 859− 863 . Ferodo, Ltd. 1 968 . Friction Materials for Engineers. Chapel-en-le-Frith, England. Fisher, J. W. and Struik, J. H. A. 1974. Guide to Design Criteria for Bolted an...

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... Ratio 0.80 0.90 0.92 0.94 0. 96 0.98 0.99 0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 2  0. 867 0.88 0.905 0.937 0.97 0.99 1 0 .60 5 0.72 0.745 0.79 0.843 0.91 0.958 0.5 0.33 0.50 0. 56 0 .63 5 0.732 0.84 0.908 0.3 ... automotive and truck bearings have rolled steel finish at the back. The housing can be bored, honed, or ground, but care must be taken to avoid circumferential and axial banding. 23 ....

Ngày tải lên: 12/08/2014, 03:20