Continuous electric power supply, which is transferred from the contact wire to the train through a pantograph mechanism, is a necessity for a train to function satisfactory. Since various sources of nonlinearities are present, such as friction in the pantograph suspensions and impacts in the subsystems and at the excitation, there is a possibility of nonlinear dynamic behaviour. The aim of this work is to experimentally investigate the dynamic behaviour of a commercial pantograph to verify if nonlinear behaviour and coupling effects can occur. A test rig has been built that has the ability to simulate both the horizontal and vertical excitation generated by the contact wire. Measurements have been performed for sinusoidal input signals both in horizontal and vertical directions. Harmonic and subharmonic motions as well as irregular behaviour are shown to exist in the system. The results show that the pantograph’s rotational degree of freedom, friction in the suspension systems and the nonlinear stiffness play an important role for the dynamic behaviour of the system and are therefore crucial to include when creating mathematical models of the system.
Skip Nav Destination
ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 30–September 2, 2009
San Diego, California, USA
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4898-2
PROCEEDINGS PAPER
Experimental Evaluation of Nonlinear Dynamics and Coupled Motions in a Pantograph Available to Purchase
Pia Hare`ll Poznic´,
Pia Hare`ll Poznic´
KTH Vehicle Dynamics, Stockholm, Sweden
Search for other works by this author on:
Jenny Jerrelind,
Jenny Jerrelind
KTH Vehicle Dynamics, Stockholm, Sweden
Search for other works by this author on:
Lars Drugge
Lars Drugge
KTH Vehicle Dynamics, Stockholm, Sweden
Search for other works by this author on:
Pia Hare`ll Poznic´
KTH Vehicle Dynamics, Stockholm, Sweden
Jenny Jerrelind
KTH Vehicle Dynamics, Stockholm, Sweden
Lars Drugge
KTH Vehicle Dynamics, Stockholm, Sweden
Paper No:
DETC2009-87246, pp. 619-626; 8 pages
Published Online:
July 29, 2010
Citation
Hare`ll Poznic´, P, Jerrelind, J, & Drugge, L. "Experimental Evaluation of Nonlinear Dynamics and Coupled Motions in a Pantograph." Proceedings of the ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 22nd Biennial Conference on Mechanical Vibration and Noise, Parts A and B. San Diego, California, USA. August 30–September 2, 2009. pp. 619-626. ASME. https://doi.org/10.1115/DETC2009-87246
Download citation file:
19
Views
Related Proceedings Papers
Related Articles
A Frequency Domain Technique for Characterizing Nonlinearities in a Tire-Vehicle Suspension System
J. Vib. Acoust (February,2005)
Governing Equation Identification of Nonlinear Single Degree-of-Freedom Oscillators With Coulomb Friction Using Explicit Stick and Slip Temporal Constraints
ASME J. Risk Uncertainty Part B (December,2023)
System Identification of Nonlinear Mechanical Systems Using Embedded Sensitivity Functions
J. Vib. Acoust (December,2005)
Related Chapters
Logarithm Transformation of the Output Response Data for Optimization
Taguchi Methods: Benefits, Impacts, Mathematics, Statistics and Applications
The Feasibility of the SWER System in New Zealand as a Low Bit Rate Communications Channel
International Conference on Software Technology and Engineering (ICSTE 2012)
A Simple and Effective Thredshold Setting Approach for Prach Detection in LTE System
International Conference on Information Technology and Computer Science, 3rd (ITCS 2011)