Research on aerodynamic characteristics of the pantograph on double-stack high container transportation lines
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 28 August 2024
Issue publication date: 25 September 2024
Abstract
Purpose
The purpose of this paper is to study the aerodynamic characteristics and uplift force tendencies of pantographs within the operational height span of 1,600–2,980 mm, aiming to offer valuable insights for research concerning the adaptability of pantograph-catenary systems on double-stack high container transportation lines.
Design/methodology/approach
Eight pantograph models were formulated based on lines with the contact wire of 6,680 mm in height. The aerodynamic calculations were carried out using the SST k-ω separated vortex model. A more improved aerodynamic uplift force method was also presented. The change rule of the aerodynamic uplift force under different working heights of the pantograph was analyzed according to the transfer coefficients of the aerodynamic forces and moments.
Findings
The results show that the absolute values of the aerodynamic forces and moments of the upper and lower frame increase with the working height, whereas those of the collector head do not change. The absolute values of the transfer coefficients of the lower frame and link arm were significantly larger than those of the upper frame. Therefore, the absolute value of the aerodynamic uplift force increased and then decreased with the working height. The maximum value occurred at a working height of 2,400 mm.
Originality/value
A new method for calculating the aerodynamic uplift force of pantographs is proposed. The specifical change rule of the aerodynamic uplift force of the pantograph on double-stack high container transportation lines was determined from the perspective of the transfer coefficients of the aerodynamic forces and moments.
Keywords
Acknowledgements
Funding: The authors are thankful for the financial support from the Fundamental Research Funds for the Central Universities (2682024CX042).
Disclosure statement: No potential conflict of interest was reported by the author(s).
Citation
Li, Y., Luo, Q., Zhao, S., Qi, W., Huang, Z. and Mei, G. (2024), "Research on aerodynamic characteristics of the pantograph on double-stack high container transportation lines", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 34 No. 10, pp. 3820-3842. https://doi.org/10.1108/HFF-05-2024-0355
Publisher
:Emerald Publishing Limited
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