Symbolic multibody methods for real-time simulation of railway vehicles

Date

2018

Director

Publisher

Springer
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión aceptada / Onetsi den bertsioa

Project identifier

  • MICINN//IPT-2011-1149-370000/ES/ recolecta
  • MINECO//TRA2014-57609-R/ES/ recolecta
Impacto
No disponible en Scopus

Abstract

In this work, recently developed state-of-the-art symbolic multibody methods are tested to accurately model a complex railway vehicle. The model is generated using a symbolic implementation of the principle of virtual power. Creep forces are modeled using a direct symbolic implementation of the standard linear Kalker model. No simplifications, such as base parameter reduction, partial-linearization or lookup tables for contact kinematics, are used. An Implicit–Explicit integration scheme is proposed to efficiently deal with the stiff creep dynamics. Real-time performance is achieved: the CPU time required for a very robust 1 ms integration time step is 203 µs.

Description

Keywords

Symbolic, Multibody, Recursive, Contact, Real-Time, IMEX

Department

Ingeniería Mecánica, Energética y de Materiales / Mekanika, Energetika eta Materialen Ingeniaritza

Faculty/School

Degree

Doctorate program

item.page.cita

Ros, J., Plaza, A., Iriarte, X., Pintor, J.M. (2018) Symbolic multibody methods for real-time simulation of railway vehicles. Multibody System Dynamics, 42, 469-493. https://doi.org/10.1007/s11044-017-9608-1.

item.page.rights

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