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A catenary system analysis for studying the dynamic characteristics of a high speed rail pantograph

  • Materials & Fracture · Solids & Structures · Dynamics & Control · Production & Design
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Abstract

In this study, the dynamic response of a catenary system that supplies electrical power to high-speed trains is investigated. One of the important problems which is accompanied by increasing the speed of a high-speed rail, is the performance of stable current collection. Another problem which has been encountered, is maintaining continuous contact force between the catenary and the pantograph without loss of panhead. The dynamic analyses of the catenary based on the Finite Element Method (FEM) are performed to develop a pantograph suitable for high speed operation. The static deflection of the catenary, the stiffness variation in contact lines, the dynamic response of the catenary undergoing the force of a constantly moving load and the contact force were calculated. It was confirmed that a catenary model is necessary to study the dynamic characteristics of the pantograph system.

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Abbreviations

m 1 :

Mass of pantograph frame

m 2 :

Mass of pantograph plunger

m 3 :

Mass of pantograph panhead

c 1 :

Damping between body and pantograph frame

c 2 :

Damping between pantograph frame and plunger

c 3 :

Damping between pantograph plunger and panhead

k l :

Stiffness between body and pantograph frame

k 2 :

Stiffness between pantograph frame and plunger

k 3 :

Stiffness between pantograph plunger and panhead

F L :

Static uplift force of pantograph

F2,F3:

Aerodynamic uplift force

m m ,m c :

Mass of a messenger wire element, contact wire element

EI m ,EI c :

Bending stiffness of messenger wire, contact wire

T m ,T c :

Tension of messenger wire, contact wire

u m ,u c :

Displacement of messenger wire element, contact wire element

k d ,k s :

Equivalent stiffness of dropper, support tower

T :

Total kinetic energy

V :

Total potential energy

P :

Contact force

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Author information

Authors and Affiliations

  1. Department of Precision Mechanical Engineering, Hanyang University, 425-791, Kyunggi-do, Korea

    Tong-Jin Park (Research assistant), Byung-Jin Kim (Research assistant) & Young-Yong Wang (Research assistant)

  2. Department of Mechanical Engineering, Hanyang University, 425-791, Kyunggi-do, Korea

    Chang-Soo Han (Professor)

Authors
  1. Tong-Jin Park
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  2. Byung-Jin Kim
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  3. Young-Yong Wang
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  4. Chang-Soo Han
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Correspondence to Chang-Soo Han.

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Park, TJ., Kim, BJ., Wang, YY. et al. A catenary system analysis for studying the dynamic characteristics of a high speed rail pantograph. KSME International Journal 16, 436–447 (2002). https://doi.org/10.1007/BF03185073

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  • DOI: https://doi.org/10.1007/BF03185073

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