access icon free Influence of catenary tension on static elasticity and dynamic contact force between pantograph and catenary

To improve the current collection quality of pantograph-catenary system at high-operating speed, the effect of contact wire tension and messenger wire tension on catenary elasticity and contact force has been analysed, respectively, by adopting the finite element method, and which is analysed by introducing the moving standard deviation value and the moving average value. The results show that the influence of contact wire tension and messenger wire tension on elasticity of catenary between two droppers periodically is different and the non-smooth degree of elasticity at the dropper-point has a great influence on changes of contact force between pantograph and catenary. The smaller messenger wire tension is and the larger contact wire is, the smaller the change of non-smooth degree of elasticity at dropper-points is. When the pantograph runs at the speed of 500km/h, the current collection quality can be improved effectively by decreasing messenger wire tension and increasing contact wire tension.

Inspec keywords: mechanical contact; railway engineering; finite element analysis; pantographs; elasticity; wires

Other keywords: contact wire tension; moving average value; dynamic contact force; static elasticity; messenger wire tension; moving standard deviation value; collection quality; catenary elasticity; catenary tension; finite element method; pantograph-catenary system

Subjects: Engineering materials; Tribology (mechanical engineering); Elasticity (mechanical engineering); Ballistics and mechanical impact (mechanical engineering); Numerical analysis; Railway industry

References

    1. 1)
      • 3. Jijian, W., Zhijun, T., Huijie, L., et al: ‘Study of the influence of current-receiving quality between pantograph and OCS from tensile force acting on catenary wire’, J. China Railw. Soc., 2005, 27, (1), pp. 114118.
    2. 2)
      • 2. Aboshi, M., Nakai, I., Kinoshita, H.: ‘Current collection characteristics and improvement methods of high-tension overhead catenary systems’, Electr. Eng. Jpn., 1998, 123, (4), pp. 6776.
    3. 3)
      • 13. Shumway, R.H., Stoffer, D.S.: ‘Time series analysis and its applications’ (Springer Science Business Media, LLC, 2011).
    4. 4)
      • 8. Lee, K., Chung, J.: ‘Dynamic analysis of a hanger supported beam with a moving oscillator’, J. Sound Vib., 2013, 332, pp. 31773189.
    5. 5)
      • 5. Wu, T.X., Brennan, M.J.: ‘Basic analytical study of pantograph-catenary system dynamics’, Veh. Syst. Dyn., 1998, 30, pp. 443456.
    6. 6)
      • 4. Wu, T.X., Brennan, M.J.: ‘Analytical study of pantograph-catenary system dynamics’ (ISVR University of Southampton, 1997).
    7. 7)
      • 11. Pombo, J., Ambrósio, J., Pereira, M., et al: ‘Influence of the aerodynamic forces on the pantograph–catenary system for high-speed trains’, Veh. Syst. Dyn., 2009, 47, pp. 13271347.
    8. 8)
      • 10. EN50318: ‘Railway applications-Current collection system-Validation of simulation of the dynamic interaction between pantograph and overhead contact line’. 2002.
    9. 9)
      • 6. Cho, Y.H., Lee, K., Park, Y., et al: ‘Influence of contact wire pre-sag on the dynamics of pantograph railway catenary’, Int. J. Mech. Sci., 2010, 52, pp. 14711490.
    10. 10)
      • 12. EN50119: ‘Railway applications- Fixed installations -Electric traction overhead contact lines’. 2009.
    11. 11)
      • 9. Garcia, O.L., Carnicero, A., Marono, J.L.: ‘Influence of stiffness and contact modelling on catenary pantograph system dynamics’, J. Sound Vib., 2007, 299, pp. 806821.
    12. 12)
      • 7. Garcia, O.L., Carnicero, A., Torres, V., et al: ‘The influence of cable slackening on the stiffness computation of railway overheads’, Int. J. Mech. Sci., 2008, 50, pp. 12131223.
    13. 13)
      • 1. Zhang, W.: ‘The development of China's high-speed railway systems and a study of the dynamics of coupled systems in high-speed trains’, Proc. Inst. Mech. Eng., F: J. Rail Rapid Transit, 2014, 228, (4), pp. 367377.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-est.2016.0076
Loading

Related content

content/journals/10.1049/iet-est.2016.0076
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading