Optimization of preventive maintenance for airbag type cylinders of electric locomotives based on reliability

MAO Yongwen; LI Yong; SONG Ning

doi:10.12299/jsues.24-0116

Volume 39 Issue 3

Sep. 2025

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Article Navigation > Journal of Shanghai University of Engineering Science > 2025 > 39(3): 274-279

MAO Yongwen, LI Yong, SONG Ning. Optimization of preventive maintenance for airbag type cylinders of electric locomotives based on reliability[J]. Journal of Shanghai University of Engineering Science, 2025, 39(3): 274-279. doi: 10.12299/jsues.24-0116

Citation:

MAO Yongwen, LI Yong, SONG Ning. Optimization of preventive maintenance for airbag type cylinders of electric locomotives based on reliability[J]. Journal of Shanghai University of Engineering Science, 2025, 39(3): 274-279. doi: 10.12299/jsues.24-0116

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Optimization of preventive maintenance for airbag type cylinders of electric locomotives based on reliability

doi: 10.12299/jsues.24-0116

MAO Yongwen^{1, 2
,},
LI Yong^{3
,
,},
SONG Ning⁴

1.
School of Locomotive and Vehicle, Sichuan Railway College, Chengdu 611732, China
2.
School of Information Science and Technology, University of Science and Technology of China, Hefei 230026, China
3.
School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
4.
Xi'an Zhongtie Rail Transit Co., Ltd., Xi'an 710000, China

Received Date: 2024-04-21
Available Online: 2025-12-22
Publish Date: 2025-09-30

Abstract

Abstract

To address the problem of under-maintenance and over-maintenance in the preventive maintenance of electric locomotive pantograph airbag cylinder, a method for optimizing inspection and maintenance parameters using failure data of the airbag cylinders was proposed. Firstly, based on the traditional preventive maintenance strategy, the graph parameter method was used to analyze whether the failure data of the airbag cylinders followed an exponential distribution. Subsequently, the Bartlett test was employed to verify the validity of this distribution assumption. Secondly, based on the characteristic constant failure rate of the airbag cylinders, a reliability model was established. Key reliability indicators, such as the instantaneous availability and steady-state availability, then derived, providing a basis for formulating the optimal preventive maintenance strategy. Thirdly, a minimum cost model for the preventive maintenance and replacement of the airbag cylinder was established, and the optimal preventive maintenance interval and maintenance cost were obtained. The optimized inspection and maintenance parameters for the airbag cylinders can provide scientific basis for maintenance personnel to improve quality and reduce maintenance costs.
- airbag cylinder,
- index distribution,
- availability,
- maintenance cycle,
- maintenance cost

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References(12)

References

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