Vibration and stability analysis of drivelines with self-excitation of non-constant velocity couplings

• Autores: Masoud SoltanRezaee, Wei Hsin Liao, Asghar Najafi, Mohammad Reza Ghazavi
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 51, Nº. 8, 2023, págs. 4731-4754
• Idioma: inglés
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• Resumen

  • In this research, a drivetrain system consisting of three shafts coupled by two joints is considered. This drivetrain system is able to transfer out-of-plane motion. To yield a more realistic model, the interconnected shafts are simulated by the finite element method. The dynamic stability is also analyzed using a computational method called monodromy matrix. Finally, the unstable areas are identified and the effects of various system parameters are discussed. Furthermore, the distributed parameter model is compared with a basic lumped mass model that is common in two-axis shafts. Moreover, there are several unstable areas, which have not been found using lumped mass models. Subsequently, the finite element model is feasible to examine the torsional vibrations of multi-axis driving shafts.