ADI-CRSTS: A NEW METHOD FOR THE MOVING HEAT SOURCES - APPLICATION TO A TRAIN PANTOGRAPH STRIP
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | ADI-CRSTS: A NEW METHOD FOR THE MOVING HEAT SOURCES - APPLICATION TO A TRAIN PANTOGRAPH STRIP |
| Type de publication | Conference Paper |
| Year of Publication | 2018 |
| Auteurs | Delcey N, Baucour P, Chamagne D, Wimmer G, Bouger O, Auditeau G, Blanvillain G, Bausseron T |
| Conference Name | PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2017, VOL 12 |
| Publisher | ASME |
| Conference Location | THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA |
| ISBN Number | 978-0-7918-5847-9 |
| Résumé | The pantograph strip interface involves many physical phenomena. Temperature evolution is one of them. This problem includes various thermal flux and sources. More specifically, due to the train motion, a moving zigzag heat source occurs. This paper deals with a thermal 2D Alternating Direction Implicit (ADI) numerical method for temperature estimations in the train pantograph carbon strip, the aims being a better wear problems anticipation and the creation of a preventive maintenance. For that, an electrical model is coupled to the thermal one to take into account all Joule effects. The ADI strategy enables a significant computation time reduction against most classical resolution methods. Besides, the model involves two mathematical processes : the first one is an appropriate variable transform which induces a fixed surface heat production, while the second is based on locally refined meshes. Various numerical tests are presented and discussed in order to show the accuracy of the scheme. From a physical point of view, the results are much interesting. Further investigations, depending on the different parameters, should lead us to predict the strip critical thermal phases |