Heat Analysis of Vehicle Drive Axle

Yong Cong Wang; You Kun Zhang; Yan Hui Lu

doi:10.4028/www.scientific.net/AMM.851.299

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 851Heat Analysis of Vehicle Drive Axle

Heat Analysis of Vehicle Drive Axle

Abstract:

The vehicle drive axle is one of the main sources of power loss in drivetrain system, and its improvements can have a significant impact on vehicle fuel economy. Gears churning loss, bearing friction loss and engaging friction loss all make a great contribution to the heat generation. The temperatures of lubricants, the gear tooth contacting surfaces, and the bearing surfaces are critical to the overall axle performance in terms of power losses, fatigue life, and wear. So it is important to understand the heat generation and dissipation in automotive drive axle. However, the quantities of understandings of drive axle temperature is limited and published information is deficient.In this paper, we establish the mathematical model of heat generation and dissipation to investigate the connection between thermal behavior and power loss. Power loss is consist of churning loss, bearing friction loss and engaging friction loss. And also we simulate the model to get the conclusion and then conduct the experiments to verify the correctness of the theories and models.

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Periodical:

Applied Mechanics and Materials (Volume 851)

Pages:

299-303

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.851.299

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Online since:

August 2016

Authors:

Yong Cong Wang*, You Kun Zhang, Yan Hui Lu

Keywords:

Drive Axle, Heat Dissipation, Heat Generation

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