Stability of a Self-Excited Machine Due to the Mechanical Coupling
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Stability of a Self-Excited Machine Due to the Mechanical Coupling

Authors: M. Soltan Rezaee, M. R. Ghazavi, A. Najafi, W.-H. Liao


Generally, different rods in shaft systems can be misaligned based on the mechanical system usages. These rods can be linked together via U-coupling easily. The system is self-stimulated and may cause instabilities due to the inherent behavior of the coupling. In this study, each rod includes an elastic shaft with an angular stiffness and structural damping. Moreover, the mass of shafts is considered via attached solid disks. The impact of the system architecture and shaft mass on the instability of such mechanism are studied. Stability charts are plotted via a method based on Floquet theory. Eventually, the unstable points have been found and analyzed in detail. The results show that stabilizing the driveline is feasible by changing the system characteristics which include shaft mass and architecture.

Keywords: Coupling, mechanical systems, oscillations, rotating shafts.

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[1] F. Vesali, M. A. Rezvani, M. Kashfi, Dynamics of universal joints, its failures and some propositions for practically improving its performance and life expectancy, Journal of Mechanical Science and Technology, 26 (2012) 2439-2449.
[2] M. SoltanRezaee, M. Afrashi, S. Rahmanian, Vibration analysis of thermoelastic nano-wires under Coulomb and dispersion forces, International Journal of Mechanical Sciences, 53(5) (2018) 33-43.
[3] M. SoltanRezaee, M. R. Ghazavi, Thermal, size and surface effects on the nonlinear pull-in of small-scale piezoelectric actuators, Smart Materials and Structures, 142-143 (2018) 095023.
[4] M. SoltanRezaee, M. R. Ghazavi, A. Najafi, Parametric resonances for torsional vibration of excited rotating machineries with nonconstant velocity joints, Journal of Vibration and Control, 24(15) (2018) 3262-3277.
[5] M. SoltanRezaee, M.-R. Ghazavi, Obtaining Stable Cardan Angles in Rotating Systems and Investigating the Effective Parameters on System Stability (in Persian), Journal of Modares Mechanical Engineering, 14 (2015) 163-170.
[6] M. SoltanRezaee, M. R. Ghazavi, A. Najafi, S. Rahmanian, Stability of a multi-body driveshaft system excited through U-joints, Meccanica, 53(5) (2018) 1167-1183.
[7] M. SoltanRezaee, M. R. Ghazavi, A. Najafi, Mathematical modelling for vibration evaluation of powertrain systems, Proceedings of the IASTED International Conference on Modelling, simulation and identification (MSI 2017), Calgary, Canada, July 19-20 (2017) 73-79.
[8] M. SoltanRezaee, M.R. Ghazavi, A. Najafi, Dynamic Stability of a System Including Three Shafts, Proceedings of Second International Conference on Advances in Robotic, Mechanical Engineering and Design (ARMED 2012), Dubai, UAE, September, 20-21 (2012).
[9] G. Bulut, Dynamic stability analysis of torsional vibrations of a shaft system connected by a Hooke's joint through a continuous system model, Journal of Sound and Vibration, 333 (2014) 3691-3701.
[10] G. Yan, Analysis and optimization of torque variation in steering column assembly, in: Proceedings of the FISITA 2012 World Automotive Congress, Springer, 2013, pp. 57-67.
[11] C. Peressini, A. Guzzomi, D. Hesterman, Torsional receptances and variable inertia of a two-inertia model of a universal joint, in: New Trends in Mechanism and Machine Science, Springer, 2013, pp. 577-585.
[12] D. R. Johnson, K. Wang, Analysis of a Flexibly Mounted Shaft Incorporating a Non-Constant Velocity Coupling With Dynamic Misalignment, in: ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, American Society of Mechanical Engineers, 2011, pp. 1023-1032.
[13] S. Asokanthan, M.-C. Hwang, Torsional instabilities in a system incorporating a Hooke’s joint, Journal of Vibration and Acoustics, 118 (1996) 368-374.
[14] S. Asokanthan, P. Meehan, Non-linear vibration of a torsional system driven by a Hooke's joint, Journal of Sound and Vibration, 233 (2000) 297-310.
[15] A. Mazzei, Passage through resonance in a universal joint driveline system, Journal of Vibration and Control, 17 (2010) 667-677.
[16] G. Bulut, Z. Parlar, Dynamic stability of a shaft system connected through a Hooke's joint, Mechanism and Machine Theory, 46 (2011) 1689-1695.
[17] P. Shi, J.-z. Li, J.-s. Jiang, L. Bin, D.-y. Han, Nonlinear dynamics of torsional vibration for rolling mill's main drive system under parametric excitation, Journal of Iron and Steel Research, International, 20 (2013) 7-12.
[18] A. Alugongo, Parametric excitation and wavelet transform analysis of ground vehicle propeller shaft, Journal of Vibration and Control, 20 (2012) 280-289.
[19] X. Jinli, S. Xingyi, P. Bo, Numerical analysis and demonstration: Transmission shaft influence on meshing vibration in driving and driven gears, Shock and Vibration, 501 (2015) 365084.
[20] X. Jinli, W. Lei, L. Wenxin, Influence of Bearing Stiffness on the Nonlinear Dynamics of a Shaft-Final Drive System, Shock and Vibration, 2016 (2016).
[21] H.-C. Seherr-Thoss, F. Schmelz, E. Aucktor, Universal joints and driveshafts: analysis, design, applications, Springer Science & Business Media, Berlin, Germany., 2006.
[22] L. Meirovitch, Methods of analytical dynamics, McGraw-Hill, New York, USA., 1970.