Effect of the Tooth Surface Waviness on the Dynamics and Structure-Borne Noise of a Spur Gear Pair

Paper #:
  • 2013-01-1877

Published:
  • 2013-05-13
DOI:
  • 10.4271/2013-01-1877
Citation:
Sundar, S., Singh, R., Jayasankaran, K., and Kim, S., "Effect of the Tooth Surface Waviness on the Dynamics and Structure-Borne Noise of a Spur Gear Pair," SAE Int. J. Passeng. Cars - Mech. Syst. 6(2):1087-1093, 2013, doi:10.4271/2013-01-1877.
Pages:
7
Abstract:
This article studies the effects of tooth surface waviness and sliding friction on the dynamics and radiated structure-borne noise of a spur gear pair. This study is conducted using an improved gear dynamics model while taking into account the sliding frictional contact between meshing teeth. An analytical six-degree-of-freedom (6DOF) linear time varying (LTV) model is developed to predict system responses and bearing forces. The time varying mesh stiffness is calculated using a gear contact mechanics code. A Coulomb friction model is used to calculate the sliding frictional forces. Experimental measurements of partial pressure to acceleration transfer functions are used to calculate the radiated structure-borne noise level. The roles of various time-varying parameters on gear dynamics are analyzed (for a specific example case), and the predictions from the analytical model are compared with prior literature.
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