Second International Conference on Rail Transportation
The Dynamic Influence of Helix Angle on Gear Transmissions of Locomotive Axle Suspension
Publication: ICRT 2021
ABSTRACT
For the locomotive with axle suspension, the driven gear is pressed-fit and integrated with the wheel into a whole. The helix angle can improve step characteristics of meshing stiffness for the gear transmission system which dynamic performance has a direct effect on the locomotive and its components. This paper proposes a gear-axle suspension locomotive coupled system dynamic 3D model, the gear transmission is coupled with a traditional locomotive dynamics system via the gear mesh interface. The influence of helix angle in the range of 0°~20° on dynamic behavior of locomotive traction gear transmission system is investigated in detail, the peak acceleration trend indicated that the helix angle of 8° minimizes vibration acceleration in three directions. The vibration acceleration peak value on the vertical, lateral, and rotational direction with the helix angle of 8° is compared with the helix angle of 0°, the three values decreased approximately 29.8%, 29.8%, and 29.6%, and the amplitude-frequency characteristic indicated that high frequency harmonic components of gear transmission system can be obviously improved by the helix angle. The results verify that helix angle have effect on the lateral dynamic responses of wheel in the coupled system.
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Reference
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Information & Authors
Information
Published In
ICRT 2021
Pages: 390 - 401
Editors: Wanming Zhai, Ph.D., Southwest Jiaotong University, Kelvin C. P. Wang, Ph.D., Oklahoma State University, and Shengyang Zhu, Ph.D., Southwest Jiaotong University
ISBN (Online): 978-0-7844-8388-6
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Feb 8, 2022
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