首页|(105837)An investigation on vibration features of a gear-bearing system involved pitting faults considering effect of eccentricity and friction
(105837)An investigation on vibration features of a gear-bearing system involved pitting faults considering effect of eccentricity and friction
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NSTL
Elsevier
In this paper, a dynamics model of a bending-torsion coupled gear-bearing transmission system is developed, and the vibration features of a pitting fault gear system considering eccentricity and friction are analyzed. Firstly, the time-varying meshing stiffness of pitting faulty propagation is calculated by the parsing method. The vibrational differential equations for this model are obtained using an energy approach based on Lagrange equations. Then, the equations are solved using the Runge-Kutta method to obtain the vibration response of the system. Finally, the effect of the pitting area ratio on the vibration features of the pitting faulty gear is analyzed by the time, frequency, and time-frequency domains. The sideband rating factor is presented to evaluate the influences of pitting faults. The effects of the eccentricity and friction on the impact caused by the pitting is analyzed.
NSTL
Elsevier
