[Lecture] Pantograph-catenary dynamic interaction and condition monitoring
Speaker: Dr. Marco Carnevale, Associate Professor, Università degli Studi di Pavia, Italy
Time: 16:00, July 19, 2023, GMT+8
Venue:
https://teams.microsoft.com/l/meetup-join/19%3ameeting_NDJjYjkwM2EtZmY5NS00ZjZkLWJjNzUtM2MxOTU2NzBhYjVj%40thread.v2/0?context=%7b%22Tid%22%3a%22a0822c41-9bdf-4bbf-86cc-51bb812c0d48%22%2c%22Oid%22%3a%22c2bb01b1-ff74-423e-a4d9-a230b647fe63%22%7d
Abstract:
Pantograph/catenary dynamic interaction plays a critical role at high speeds, since the quality of the contact between the contact wire and pantograph collector strips determines the quality of power collection. The variability of the contact force between pantograph and contact wire is affected by several factors like pantograph dynamic behavior, overhead contact line geometry and mechanical impedance, aerodynamic force on both pantograph and overhead contact line. Moreover, high frequency vibrations, related to the modes of vibrations of the collector, affect the system performance in a high-frequency range which is not considered by International Standards.
The operation of a high-speed line requires a high level of performance and reliability from both the overhead line and the pantograph. For this reason, to keep the status of the infrastructure under proper control, the overhead contact lines (OCL) of all major railway networks are periodically monitored using inspection vehicles that measure geometrical parameters of the contact wire such as height, stagger and also, in some cases, thickness. At the same time, the possibility to gather diagnostic indicators from all the pantograph of a commercial fleet, daily, enable the possibility to carry out condition monitoring and trend analysis of both the pantograph and the infrastructure.
Biography:
Marco Carnevale is Associate Professor of Applied Mechanics at the University of Pavia (Italy), Dipartimento di Ingegneria Industriale e dell’Informazione. From February 2011 to July 2019 he has been working at the Department of Mechanical Engineering of Politecnico di Milano, where he got a Ph.D. in Mechanical Systems’ Engineering in 2011, with the discussion of a thesis entitled “Innovative Solutions for Improving Pantograph Dynamics and Current Collection Quality”. He is Associate Editor of Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, and author of several works related with pantograph/catenary dynamic interaction, control and condition monitoring. He is Member of the Ph.D. School Electronics, Computer Science and Electrical Engineering at Università di Pavia, where he teaches the course entitled “Condition monitoring and prognostics of railway infrastructure and rolling stock”. His main research topics are railway vehicle dynamics and diagnostics, pantograph/catenary dynamic interaction, control of mechanical systems, and, lately, industrial robotics. He keeps on cooperating with Politecnico di Milano on research topics related to railway dynamics and condition monitoring.
