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The Effects of Load Location on Dropper Stress in a Catenary System for a High-Speed Railway
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-08
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
In this paper, the effects of load location on dropper stress are studied.
We treat contact wire as a beam element and derive its response equation and then deduce the stress equation of dropper.
A computer code based on MATLAB is written to calculate dropper stress using the finite difference method.
The results show that there are three stages during the period of the stress changes of dropper, including instant rebound, damped sinusoidal vibration, and bending compression.
The shorter the distance away from a load is, the larger the vertical displacement of the dropper is, which results in the corresponding increases of its stress amplitude and the maximum tensile stress.
The load location has a significant impact on the stress changes of dropper.
Compared to the condition of the load in the middle, the load acting on the edge of contact wire could induce the larger tensile stress when both ends of contact wire are considered as free boundaries.
Therefore, it is necessary to add supports at both ends.
American Psychological Association (APA)
He, Fan& Guo, Dandan. 2020. The Effects of Load Location on Dropper Stress in a Catenary System for a High-Speed Railway. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1200813
Modern Language Association (MLA)
He, Fan& Guo, Dandan. The Effects of Load Location on Dropper Stress in a Catenary System for a High-Speed Railway. Mathematical Problems in Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1200813
American Medical Association (AMA)
He, Fan& Guo, Dandan. The Effects of Load Location on Dropper Stress in a Catenary System for a High-Speed Railway. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1200813
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1200813