Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30172
Analysis of Hollow Rollers Implementation in Flexible Manufacturing of Large Bearings

Authors: S. Barabas, A.Fota.

Abstract:

In this paper is study the possibility of successfully implementing of hollow roller concept in order to minimize inertial mass of the large bearings, with major results in diminution of the material consumption, increasing of power efficiency (in wind power station area), increasing of the durability and life duration of the large bearings systems, noise reduction in working, resistance to vibrations, an important diminution of losses by abrasion and reduction of the working temperature. In this purpose was developed an original solution through which are reduced mass, inertial forces and moments of large bearings by using of hollow rollers. The research was made by using the method of finite element analysis applied on software type Solidworks - Nastran. Also, is study the possibility of rapidly changing the manufacturing system of solid and hollow cylindrical rollers.

Keywords: Large bearings, Von Mises stress, hollow rollers, flexible manufacturing system

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1328088

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1738

References:


[1] J. Morren, J. Pierik, W.H. de Haan, Inertial response of variable speed wind turbines Electric Power Systems Research 76-2006, pag.980-987.
[2] Y. D. Song, B. Dhinakaran, X. Y. Bao, Variable speed control of wind turbines using nonlinear and adaptive algorithms, Journal of Wind Engineering and Industrial Aerodynamics 85-2000, pag.293-308.
[3] W. M. Abu Jadayil, N. M. Jaber, Numerical prediction of optimum hollowness and material of hollow rollers under combined loading, Materials and Design Journal 31-2010, pag.1490-1496.
[4] S. Barabas, C. Serban, Deep carburizing process for 20NiCrMo7 and 15 NiCr13 steels used in construction of large bearings elements, AFASES 2010 Conference - Scientific Research and Education in the Air Force, 27-29 May, 2010, Brasov, pag.594-598.
[5] O. Zwirlein, H. Schlicht, Rolling contact fatigue mechanism accelerated testing versus field performance, Rolling Contact Fatigue Testing of Bearing Steels, ASTM STP 771, 1982, pag.358-379.
[6] H. Reusner, The logarithmic roller profile -the key to superior performance of cylindrical and taper roller bearings, Ball Bearing Journal 230-1987, pag. 2-10.
[7] S.H. Ju, T.L. Horng, K.C. Cha, Comparisons of contact pressures of crowned rollers, Proceedings of the Institution of Mechanical Engineering Part 1, Engineering Tribology Journal, 214-2000, pag. 147- 156.
[8] Cao, M., Xiao, J., "A comprehensive dynamic model of double-row spherical roller bearingÔÇöModel development and case studies on surface defects, preloads, and radial clearance". Mechanical Systems and Signal Processing 22, 2008, pag. 467-489.
[9] G. Lundberg, A. Palmgren, Dynamic Capacity of Rolling Bearings, Acta Polytechnica Scandinavica. Electrical Engineering Series, vol. 1, no. 3, 1947, pag. 87-89.
[10] E. V. Zaretsky, J. V. Poplawski, S. M. Peters, Comparison Of Life Theories For Rolling-Element Bearings, NASA Technical Memorandum 106585 Annual Meeting of the Society of Tribologists and Lubrication Engineers, Chicago, Illinois, May 14-19, 1995, pag.5-9.
[11] M. Howell, G.T. Hahn, C.A. Rubin, D.L. McDowell, Finite element analysis of rolling contact for nonlinear kinematic hardening bearing steel, ASME Journal Tribology, 1995, pag. 36.
[12] MSC NASTRAN Release Guide, 2005.
[13] Wind EnergyÔÇöThe Facts, Technology, The European Wind Association, vol. 1, 2003.pag.43-47.
[14] Beno, B., Manufacturing: Design, Production, Automation and Integration, Marcel Dekker, ISBN: 0-8247-4273-7, New York, NY, USA, 2003.
[15] Fota, A., Machine systems design. Modelling and simulation, Transilvania University Publishing House, Brasov, Romania, 2004.
[16] Kal-Pakjian, S., Manufacturing Engineering and Technology, Addison- Wesley Publishing Company, 1995.
[17] Malta, A. & Semeraro, Q., Design of Advanced Manufacturing Systems, Springer Verlag, Berlin. 2005.
[18] Shivanand, M. K., Benal, M. M. & Koti, V., Flexible Manufacturing Systems, Editor: New Age International, ISBN 8122418708, 9788122418705, 2006.