The Optimization Design of Opening and Closing Mechanism of Aerodynamic Braking in High-Speed Train

Abstract:

Aerodynamic brake is a new type of non-adhesion brake mode used to high-speed train brake by unfolding the brake panel on the roof of the high speed train to increase aerodynamic resistance. This brake mode is effective especially in the condition of high speed. The article is aimed at designing a set of opening and closing mechanism to control the movement of the brake panel. The opening and closing mechanism mainly include three components of guide mechanism, the center of rotation and drive mechanism. The guide mechanism as auxiliary orientation is a functional unit of the bearing parts used to improve the movement and load conditions of the brake panel. The center of rotation is the key component to support the brake panel and transmit the braking force. The drive mechanism, the power source of the opening and closing mechanism, is designed to drive the brake panel up and down in the reciprocating motion. This paper focuses on the design of the three components, using the method of combining structural design and reliability design and aiming at the final optimal design.

• Periodical: Applied Mechanics and Materials (Volumes 365-366)
• Pages: 444-449
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.365-366.444
• Online since: August 2013
• Authors: Chun Tian, Meng Ling Wu, Cheng Li, Lu Zhu
• Keywords: Aerodynamic Braking, Air Cylinder, Brake Panel, Opening and Closing Mechanism, Rotation Axis

References

[1] Kazumasa, O. and Masafumi, Y. Development of Aerodynamic Brake of Maglev Vehicle for Emergency Use [R]. Japan: Quarterly Reports of Railway Technical Research Institute, 1989, 3(11): 281-286.

[2] Masafumi, Y. Characteristics of the Aerodynamic Brake of the Vehicle on the Yamanashi Maglev Test Line [R]. Japan: Quarterly Reports of Railway Technical Research Institute, 2000, 41(2): 74-78.

DOI: 10.2219/rtriqr.41.74

[3] Miao Xiu-juan, Liang Xi-feng. Research on Air Brake Board of High-speed Train[C]/China Institute of Aerodynamics. 04 Industrial Aerodynamics Conference, Beijing: Industrial Aerodynamics Conference, 2004: 137~141.

[4] Tian Chun, Wu Meng-ling, Ren Li-hui, Wang Xiao-yan. Study on Aerodynamics Braking[J]. Rolling Stock. 2009, 47（3）：20~12.

[5] Tian Chun, WU Meng-ling, ZHU Yang-Yong, FEI Wei-wei. Rule of Aerodynamics Braking Force in Longitudinal Different Position of High-speed Train[J]. Journal of Tongji University (Natural Sicence), 2011, 39(5): 705-709.

[6] Meng-ling WU, Yang-yong ZHU, Chun TIAN, Wei-wei FEI, The influence of aerodynamic braking on the pressure wave of a crossing high-speed train, Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(12): 979-984.

DOI: 10.1631/jzus.a11gt011

[7] ZhuoJun Luo, Jianyong Zuo. Simulation of Hydraulic System with AMESim for Aerodynamic Brake of High-speed Train. The 2nd International Conference on Computer Application and System Modeling. November 18-20.

DOI: 10.2991/iccasm.2012.235