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Tomasz Wejrzanowski, Wojciech Spychalski, Krzysztof Różniatowski and Krzysztof Kurzydłowski

References Armstrong R.W. (1983). The Yield and Flow Stress Dependence on Polycrystal Grain Size, Yield, Flow and Fracture of Polycrystals , Applied Science Publishers, London. Baddeley A.J., Gundersen H.J.G. and Cruz-Orive L.M. (1986). Estimation of surface area from vertical sections, Journal of Microscopy 142 : 259-276. Hall E. O. (1951). The Deformation and Ageing of Mild Steel: III Discussion of Results, Proceedings of the Royal Society B64 (9): 747

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Damian Bogdanowicz and Krzysztof Giaro

., Rajan, V. and Moret, B.M.E. (2012). A metric for phylogenetic trees based on matching, IEEE/ACM Transactions on Computational Biology and Bioinformatics 9 (4): 1014-1022. Ma, B., Li, M. and Zhang, L. (1998). On reconstructing species trees from gene trees in term of duplications and losses, Proceedings of the 2nd Annual International Conference on Computational Molecular Biology, RECOMB’98, New York, NY, USA , pp. 182-191. McKenzie, A. and Steel, M. (2000). Distributions of cherries for two models of trees, Mathematical Biosciences

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S.O. Pyskunov, Yu.V. Maksimyk and V.V. Valer

of Applied Mechanics and Technical Physics 56 2 282 292 10.1134/S0021894415020145 [16] Volkov I. A., Egunov V. V., Igumnov L. A., Kazakov D. A., Korotkikh Yu. G., Mitenkov F. M. (2015), Assessment of the service life of structural steels by using degradation models with allowance for fatigue and creep of the material, Journal of Applied Mechanics and Technical Physics 56 (6) 995-1006. 10.1134/S0021894415060097 Volkov I. A. Egunov V. V. Igumnov L. A. Kazakov D. A. Korotkikh Yu. G. Mitenkov F. M. 2015 Assessment of the service life of structural steels by using

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Yong Qin, Yuyan Luo, Jingru Lu, Lu Yin and Xinran Yu

. It is also China’s first resource development special zone and the vanadium and titanium capital of China. The reserves of titanium, vanadium, and graphite are ranked first in the world, third in the world, and third in China, respectively. It has become the largest production base of vanadium titanium products and vanadium titanium steel in China. The whole area is integrated into the experimental zone for the development and innovation of strategic resources in western Panzhihua and it is speeding up the construction of a world-class vanadium and titanium

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V.A. Bazhenov, O.S. Pogorelova and T.G. Postnikova

4 . Table 4 Material Steel Copper Aluminium Rubber Young’s modulus, N m -2 2.10 1.11 0.69 0.00008 Maximum F con ,N·10 5 1.71 1.33 1.10 0.0309 Let us note the interesting result: the rubber elasticity modulus is less at 26000 times than steel elasticity modulus. The contact force is less at 55 times and main body vibration amplitude is less only at 1.22 time! Contact Hertz’s theory supposes that contact surfaces are curvilinear "Hertzian" ones [ 36 ]. The local geometry of contact zone characterises by

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Chen Long, Xia Xintao, Zheng Haotian and Qiu Ming

parameters of the bearing are list as Tab.1 . The load of the bearing is set as 10N and the rotational speed is set as 100 RPM. The lubricant parameters involved in calculation is set as jet fuel No.3. Then friction torque is calculated as 0.0116 N·m and 0.0523 N·m, respectively. Obviously, the calculation results from different calculation models different with each other variously. Table 1 Structural parameters of the bearing. Parameter/Unit Value Parameter/Unit Value O.R ( D )/mm 45.225 I.R( d )/mm 16.053 Raceway diameter