Gear transmission is a key component in locomotive where it delivers the traction or braking forces between the motor and the wheelset. Its working performance has a direct effect on the operating reliability and safety. Therefore, investigation on the dynamic characteristics of the gear transmission in locomotives is very meaningful. In this study, a gear transmission-locomotive-track spatial coupled dynamic model is established based on the classical locomotive-track coupled dynamics and the gear dynamics theory. Based on this model, the dynamic responses of the gear transmission can be analysed under excitations from different track geometrical irregularity, and the dynamic performance of the gear transmission can be obtained. This paper also studies the effect law of the track irregularity on the vibration of the gear transmission by using statistical indicators RMS (Root Mean Square) and PtP (Peak-to-Peak). The results indicate that the track geometrical irregularity has an obvious impact to the dynamic performance of gear transmission. The dynamic response of the gear transmission will increase violently when the locomotive runs on the track in a worse condition. The results are expected to be capable of providing some references for fatigue life prediction and reliability analysis of the gear transmissions in locomotive.
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ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 6–9, 2017
Cleveland, Ohio, USA
Conference Sponsors:
- Design Engineering Division
- Computers and Information in Engineering Division
ISBN:
978-0-7918-5824-0
PROCEEDINGS PAPER
Effect of Track Geometric Irregularity on Dynamic Characteristics of Gear Transmission in a Locomotive
Tao Zhang,
Tao Zhang
Southwest Jiaotong University, Chengdu, China
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Zaigang Chen,
Zaigang Chen
Southwest Jiaotong University, Chengdu, China
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Jie Zhang,
Jie Zhang
Southwest Jiaotong University, Chengdu, China
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Shunqi Sui,
Shunqi Sui
Southwest Jiaotong University, Chengdu, China
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Cheng Pan
Cheng Pan
Southwest Jiaotong University, Chengdu, China
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Tao Zhang
Southwest Jiaotong University, Chengdu, China
Zaigang Chen
Southwest Jiaotong University, Chengdu, China
Jie Zhang
Southwest Jiaotong University, Chengdu, China
Shunqi Sui
Southwest Jiaotong University, Chengdu, China
Cheng Pan
Southwest Jiaotong University, Chengdu, China
Paper No:
DETC2017-67034, V010T11A009; 8 pages
Published Online:
November 3, 2017
Citation
Zhang, T, Chen, Z, Zhang, J, Sui, S, & Pan, C. "Effect of Track Geometric Irregularity on Dynamic Characteristics of Gear Transmission in a Locomotive." Proceedings of the ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 10: 2017 ASME International Power Transmission and Gearing Conference. Cleveland, Ohio, USA. August 6–9, 2017. V010T11A009. ASME. https://doi.org/10.1115/DETC2017-67034
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