Symbolic multibody methods for real-time simulation of railway vehicles
Fecha
2018Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1007/s11044-017-9608-1
Resumen
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-lineariz ...
[++]
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. [--]
Materias
Symbolic,
Multibody,
Recursive,
Contact,
Real-Time,
IMEX
Editor
Springer
Publicado en
Multibody System Dynamics (2018), 42, 469–493
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Mecánica, Energética y de Materiales /
Nafarroako Unibertsitate Publikoa. Mekanika, Energetika eta Materialen Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
This work was partially supported by the Spanish Ministry of Economy and Competitiveness (MINECO) [grant numbers IPT-2011-1149-370000 and TRA2014-57609-R].