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Nonlinear Vibrations of Innovative One-Way Clutch in Vehicle Alternator

College of IT & Engineering, Marshall University, Huntington, WV 25755, USA
College of Technology, Eastern Michigan University, Ypsilanti, MI 48197, USA
Author to whom correspondence should be addressed.
Inventions 2018, 3(3), 53;
Received: 27 May 2018 / Revised: 24 July 2018 / Accepted: 26 July 2018 / Published: 30 July 2018
(This article belongs to the Special Issue Structural Health Monitoring and Their Applications Across Industry)
PDF [3496 KB, uploaded 30 July 2018]


One-way clutches have been proposed for vehicle alternators. The clutch can play an important role in reducing vibrations of the vehicle engine accessory system, but the severe vibrations of the clutch subsystem limit its stability and durability. This paper investigates the nonlinear vibrations of a one-way clutch between the accessory pulley and the alternator shaft. The one-way clutch is modelled as a discontinuous stiffness system, and the simplified model is analyzed using discontinuous transform to determine the periodic, primary resonance and the sub and super harmonic resonance solutions. The typical system model is numerically solved and the spectrum and phase plots are characterized. The results give a big picture of and insights into the nonlinear vibration features of one-way clutch system. A relevant US patent is pending. View Full-Text
Keywords: vehicle alternator; engine system; front-end accessory; belt-pulley system; one-way clutch; nonlinear dynamics vehicle alternator; engine system; front-end accessory; belt-pulley system; one-way clutch; nonlinear dynamics

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Xu, X.; Chen, G.; Colley, J.; Li, P.; Qatu, M. Nonlinear Vibrations of Innovative One-Way Clutch in Vehicle Alternator. Inventions 2018, 3, 53.

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