Abstract
Air blowers are widely used in industry. The vibration of the rolling bearing-rotor is a key factor in the blower’s performance because it significantly influences the security and working life of the whole system. In previous research on the vibration characteristics of the air blower, the supporting rolling element bearing was always simplified as a particle on a shaft with radial stiffness and damping coefficient. Such simplification neglects the effects of the bearing structure on the vibration performance of the rotor system. In this paper, a numerical model of the bending stiffness of the tapered roller bearing was established through mechanics and deformation analysis. On the base of the model, a new TMM (transfer matrix method) for bearing-rotor system was established; the new TMM considers the influences of the bearing structure on the vibration of the rotor system. Furthermore, modal analysis on an air blower rotor system was carried out by using the new TMM, and the mode shape, critical speed and unbalance response of the air blower system were obtained. The same blower rotor was also analyzed by FEM to verify the validation of the new TMM, showing that the new method proposed in this paper for vibration characteristics calculation of an air blower is credible.
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References
Y. Ohta and E. Outa, Evaluation and prediction of bladepassing frequency noise generated by a centrifugal blower, ASME Journal of Turbo machinery, 118(3) (1996) 597–605.
H. Sun and S. Lee, Numerical prediction of centrifugal compressor noise, Journal of Sound and Vibration, 269(1) (2004) 421–430.
M. Younsi and F. Bakir, Numerical and experimental study of unsteady flow in a centrifugal fan, Proc. IMechE: Journal of Power and Energy, 221(7) (2007) 1025–1036.
H. Rahnejat and R. Gohar, The vibrations of radial ball bearings, Pro. of the Institution of Mechanical Engineers-Part CMechanical engineering science, 199(C3) (1985) 181–193.
R. Aini and H. Rahaejat, A five degrees of freedom analysis of vibrations in precision spindles, International Journal of Machine Tools and Manufacture, 30(1) (1990) 1–18.
R. Aini and H. Rahnejat, Vibration modeling of rotating spindles supported by lubricated bearings, Journal of Tribology, 124(1) (2004) 158–165.
A. K. Rahman and R. Aini, On the performance of multisupport spindle-bearing assemblies, Proc. of Institution of Mechanical Engineers-Part K-Journal of Multi-body Dynamics, 216(2) (2002) 117–132.
N. Akturk and M. Uneeb, The effects of number of balls and preload on vibrations associated with ball bearings, Journal of Tribology, 119 (1997) 747–753.
T. Karacay and N. Akturk, Vibrations of a grinding spindle supported by angular contact ball bearings, Proc. of Institution of Mechanical Engineers-Part K-Journal of Multi-body Dynamics, 222 (2008) 61–74.
J. S. Wu and C. T. Chen, A lumped-mass TMM for free vibration analysis of a multi-step Timoshenko beam carrying eccentric lumped masses with rotary inertias, Journal of Sound and Vibration, 301 (2006) 878–897.
J. S. Wu and C. T. Chen, A continuous-mass TMM for free vibration analysis of non-uniform beam with various boundary conditions and carrying multiple concentrated elements, Journal of Sound and Vibration, 311 (2008) 1420–1430.
Z. Y. Ai and Q. S. Wang, Transfer matrix solutions to axisymmetric and non-axisymmetric consolidation of multilayered soils, Acta Mechanica, 211 (2010)155–172.
A. Liew and N. S. Feng, On using the transfer matrix formulation for transient analysis of nonlinear rotor-bearing systems, International Journal of Rotating Machinery, 10(6) (2004) 425–431.
X. T. Rui and B He, Discrete time transfer matrix method for multibody system dynamics, Multibody System Dynamics, 14 (2005) 317–344.
S. C. Hsieh and J. H. Chen, A modified transfer matrix method for the coupled lateral and torsional vibrations of symmetric rotor-bearing systems, Journal of Sound and Vibration, 289(3) (2006) 294–333.
S. C. Hsieh and J. H. Chen, A modified transfer matrix method for the coupling lateral and torsional vibrations of asymmetric rotor-bearing systems, Journal of Sound and Vibration, 312(4–5) (2008) 563–571.
H. H. Hertz, Hertz’s miscellaneous papers, MacMillan, London, EN (1896).
H. Wu and J. W. Wang, Study on the calculating method of radial stiffness of tapered roller bearing, Lubrication Engineering, 33 (2008) 39–43.
H. Wu and J. W. Wang, Calculating Method for damping of Tapered Roller Bearings, Bearing (2) (2009) 5–9.
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This paper was recommended for publication in revised form by Associate Editor Ohseop Song
Hao Wu received his Ph.D degree in Mechanical Design and Theory from East China University of Science and Technology, Shanghai, China. His current research interests include inspection of special equipments and vibration of elevators.
Qi An is a professer in the Department of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China. His current research interests include tribology and dynamics of bearing-rotor system.
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Wu, H., Zhou, Q., Zhang, Z. et al. Vibration analysis on the rolling element bearing-rotor system of an air blower. J Mech Sci Technol 26, 653–659 (2012). https://doi.org/10.1007/s12206-011-1201-6
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DOI: https://doi.org/10.1007/s12206-011-1201-6