Symbolic multibody methods for real-time simulation of railway vehicles
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 stan...
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| Veröffentlicht in: | Multibody system dynamics 2018-04, Vol.42 (4), p.469-493 |
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| container_title | Multibody system dynamics |
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| creator | Ros, Javier Plaza, Aitor Iriarte, Xabier Pintor, Jesús María |
| description | 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. |
| doi_str_mv | 10.1007/s11044-017-9608-1 |
| format | Article |
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symbolic multibody
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1
ms
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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
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1
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| ispartof | Multibody system dynamics, 2018-04, Vol.42 (4), p.469-493 |
| issn | 1384-5640 1573-272X |
| language | eng |
| recordid | cdi_proquest_journals_2011676739 |
| source | SpringerNature Journals |
| subjects | Automotive Engineering Computer simulation Control Dynamical Systems Electrical Engineering Engineering Kinematics Lookup tables Mechanical Engineering Model testing Optimization Real time Vibration |
| title | Symbolic multibody methods for real-time simulation of railway vehicles |
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