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Semi-active Dampers for Multiple Pantograph Operation

  • Stefano BruniEmail author
  • Marco Carnevale
  • Alan Facchinetti
Conference paper
  • 11 Downloads
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Multiple pantograph operation is an unfavourable condition for current collection, since the trailing pantograph is subjected to high vibrations and elevated contact force variations, due to the perturbation induced on the overhead line by the leading pantograph. In a previous work it was shown that a diversification of preloads of front and rear pantographs, achievable using pressure regulation systems driven by electronic units, can have beneficial effects on current collection quality of the trailing pantograph. This paper investigates the concepts of differentiating the leading and trailing pantograph damping, and of varying the pantograph damping as a function of speed. A plan of numerical simulations is first performed considering a number of permutations of leading and trailing pantograph damping values, obtaining a map of optimal damping values for different train speeds. The numerical model of an electro-hydraulic damper, able to adapt its damping parameter is then proposed and integrated in the PCaDA model for the simulation of the dynamic interaction between pantograph and catenary. The numerical results corroborate the idea that the regulation of damping values as a function of train speed and orientation would allow improving the system performances and extending the operating speeds.

Keywords

Multiple pantograph operation Semi-active damper Pantograph modelling 

References

  1. 1.
    Manabe, K., Morikawa, T., Hikita, M.: On dynamics of overhead equipment and multi-pantograph system. JRRT Q. Rep. 27(1), 21–25 (1986)Google Scholar
  2. 2.
    Pombo, J., Ambrosio, J.: Multiple pantograph interaction with catenaries in high-speed trains. J. Comput. Nonlinear Dyn. 7(4) (2012).  https://doi.org/10.1115/1.4006734
  3. 3.
    Bucca, G., Carnevale, M., Collina, A., et al.: Adoption of different pantographs preloads to improve multiple collection and speed up existing lines. Veh. Syst. Dyn. 50(SUPPL. 1), 403–418 (2012).  https://doi.org/10.1080/00423114.2012.665165CrossRefGoogle Scholar
  4. 4.
    Bucca, G., Carnevale, M., Collina, A., Facchinetti, A.: An active control strategy for multiple pantograph collection. In: Proceedings of the 23rd Symposium on Dynamics of Vehicles on Roads and Tracks (IAVSD 2013), Qingdao, China, 19–23 August 2013Google Scholar
  5. 5.
    Collina, A., Bruni, S., Facchinetti, A., Zuin, A.: PCaDA statement of methods. Veh. Syst. Dyn. 53(3), 347–356 (2015).  https://doi.org/10.1080/00423114.2014.959027CrossRefGoogle Scholar
  6. 6.
    Savaresi, S.M., Poussot-Vassal, C., Spelta, C., Sename, O., Dugard, L.: Semiactive Suspension Control Design for Vehicles. Elsevier, Amsterdam (2010)Google Scholar
  7. 7.
    Dixon, J.C.: The Shock Absorber Handbook. Wiley, Hoboken (2007)CrossRefGoogle Scholar
  8. 8.
    Ripamonti, F., Chiarabaglio, A.: A smart solution for improving ride comfort in high-speed railway vehicles. JVC J. Vib. Control 25, 1958–1973 (2019).  https://doi.org/10.1177/1077546319843377MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Stefano Bruni
    • 1
    Email author
  • Marco Carnevale
    • 1
  • Alan Facchinetti
    • 1
  1. 1.Dipartimento di Meccanica, Politecnico di MilanoMilanItaly

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