Research on Noise Reduction Modification Design of High Speed EMU Traction Arc Toothed Cylindrical Gears
Source abstract
Abstract
Aiming at the deficiencies of the traction helical gear transmission system when the EMU is running at high speed, this paper proposes and designs a kind of arc toothed cylindrical gear adapted to the traction of higher speed EMU. A parametric arc toothed cylindrical gear model was constructed using CREO, and its dynamic contact characteristics and acoustic response characteristics were analyzed under sustained operating conditions using the finite element boundary element method. The design of a tooth profile combined with the radius of the arc toothed line of the comprehensive trimming program put forward a virtual trimming prototype method through MATLAB and CREO reconstruction gear, and trimming before and after the gear transmission simulation experiments occurred for comparison and analysis. This study shows that the traction arc toothed cylindrical gear comprehensive modification method proposed in this study achieves better dynamic performance optimization, effectively reduces the contact stress and radiation noise of the gear transmission, and provides a theoretical basis for the development of a new generation of high-speed EMU stock traction drive systems.
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Research context
OpenAlex topics: Gear and Bearing Dynamics Analysis · Tribology and Lubrication Engineering · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, China
School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China
School of Information Engineering, East China Jiaotong University, Nanchang 330013, China
Funding
National Natural Science Foundation of China
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Show source-provided references
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