Dynamic stress prediction in catenary wires for fatigue analysis
dc.contributor.author
hal.structure.identifier | BIANCHI, Jean-Philippe
|
dc.contributor.author
hal.structure.identifier | BALMES, Etienne
|
dc.contributor.author
hal.structure.identifier | NGUYEN-TAJAN, Mac Lan
|
dc.date.accessioned | 2016 |
dc.date.available | 2016 |
dc.date.issued | 2015 |
dc.date.submitted | 2016 |
dc.identifier.uri | http://hdl.handle.net/10985/10919 |
dc.description.abstract | Fatigue cracks in the contact wire are a possible cause of fracture which can induce huge costs. Fatigue study is thus of a great interest but requires an accurate computations of stress distributions. OSCAR is a SNCF software used to study coupled pantograph / catenary dynamics. It is based on Euler-Bernoulli beam meshes. This formalism is accurate to study the catenary displacements, but is not sufficient to compute multi-axial stresses, in particular in parts that can concentrate stresses such as the junction claws. This paper details and illustrates the strategy developed to compute a full multi-axial transient stress field, in any point of the contact wire. The dynamic displacement computed by OSCAR is expanded and combined with a precise nonlinear static state of a mixed model of beams and volume elements. |
dc.language.iso | en |
dc.rights | Post-print |
dc.title | Dynamic stress prediction in catenary wires for fatigue analysis |
dc.typdoc | Communication avec acte |
dc.localisation | Centre de Paris |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Vibrations |
ensam.audience | Internationale |
ensam.conference.title | IAVSD |
ensam.conference.date | 2015-08 |
ensam.country | Autriche |
ensam.title.proceeding | IAVSD |
ensam.page | 1-10 |
ensam.city | Graz |
ensam.peerReviewing | Oui |
ensam.invitedCommunication | Non |
ensam.proceeding | Oui |
hal.identifier | hal-01333446 |
hal.version | 1 |
hal.status | accept |