Backlash effect on dynamic analysis of a two-stage spur gear system
- 477 Downloads
Gearbox dynamics are characterized by a periodically changing stiffness due to multiple teeth contacts. In real gear systems, a backlash also exists that can lead to a loss in contact between the teeth. Due to this loss of contact, the gear has piecewise linear stiffness characteristics. This paper examines the effect of backlash in the two-stage gear system. A purely torsional gear system is formed by three shafts connected to each other by two spur gear pairs. Using standard methods for nonlinear systems (Newton-Raphson algorithm), the dynamic behavior of a gear system with backlash is examined. Amplitude jumps in systems due to backlash are observed.
Keywordsbacklash gearmesh stiffness fluctuation two-stage gear system
Unable to display preview. Download preview PDF.
- 1.A. Kahraman and G.W. Blankenship: “Experiments on Non-Linear Dynamic Behaviour of an Oscillator with Clearance and Periodically Time-Varying Parameters,” J. Appl. Mech. (Trans. ASME), 2001, 64, pp. 217–26.Google Scholar
- 9.E. Rigaud: “Dynamics Interactions Between Teeth, Shafts, Bearings, and Housing in the Gear Transmissions,” Thesis from ECLyon, No. 9818, 1998.Google Scholar
- 10.G. Litak and M. Friswell: “Vibrations in Gear Systems,” Chaos, Solit., Fractals, 2003, 16(1), pp. 145–50.Google Scholar
- 11.A. Saada and P. Velex: “An Extended Model for the Analysis of the Dynamic Behaviour of Planetary Trains,” Proceedings of Sixth International Power Transmission and Gearing Conference, American Society of Mechanical Engineers, 1995, pp. 402–19.Google Scholar
- 14.M.G. Donley and G.C. Steyer: “Dynamic Analysis of Planetary Gear System,” Proceedings of Sixth International Power Transmission and Gearing Conference, American Society of Mechanical Engineers, 1995.Google Scholar
- 15.R. Kasuba and R. August: “Gear Mesh Stiffness and Load Sharing in Planetary Gearing,” Paper 73, American Society of Mechanical Engineers, 1984.Google Scholar
- 16.W. Lassâad, L. Jamel, F. Tahar, and H. Mohamed: “Effects of Eccentricity Defect and Tooth Crack on Two-Stage Gear System Behaviour,” Int. J. Eng. Sim., 2005, 6(2), pp. 17–24.Google Scholar
- 17.G. Dhatt and G. Touzot: The Finite Element Method Displayed, Maloine Edition, 1984.Google Scholar