Dynamic modeling and parametric analysis of differential gearbox used in electric vehicle
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The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing
Submission date: 2019-03-26
Acceptance date: 2019-07-10
Online publication date: 2020-01-15
Publication date: 2020-01-15
Journal of Theoretical and Applied Mechanics 2020;58(1):73–85
The aim of this study is to perform the modeling and parametric analysis of dynamic mesh force in the light of resonance modes. Firstly, dynamic modeling of a differential gearbox has been performed by using the lumped parameter method. Then, the resonant points from Campbell diagrams were studied for the first three critical harmonic orders. Furthermore, two case studies were proposed in order to investigate the impact of radial clearance and face width on the dynamic mesh force along with resonance. Simultaneously, resonance identification and elimination were studied for two working conditions. Results show that the influence of lowering face width of pinions is more effective on mesh force reduction and resonance elimination as opposed to the first case study by enhancing wheel side mesh stiffness.
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