Research on aerodynamic experiment and dynamic performance of new developed V500 pantograph at 400 km/h or higher

Mei, G.; Wang, J.; Zhao, Chunhua; Jiang, Yun; Zou, Dan Dan; Li, R.; Chen, Z.; Chen, M.; Li, J.; Song, Dong Joo; Zhang, N. Zhou W.

doi:10.1201/b21185-97

Cited by 8 publications

(4 citation statements)

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“…The comparison of the results of the three models approves their validity and enables their use in the development of advanced control and observer concepts. In this context, the analytical models will be inverted and used in a feedforward control concept (Heckmann et al, 2015). In addition, the excellent conformity of the linear and the nonlinear models facilitates the application of well-known linear analysis and control synthesis methods.…”

Section: Discussionmentioning

confidence: 99%

Different Models of a Scaled Experimental Running Gear for the DLR RailwayDynamics Library

Schwarz

Heckmann

Keck

2015

Linköping Electronic Conference Proceedings

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The DLR internal project "Next Generation Train" (NGT) deals with a high-speed train in a double-deck configuration. To realize the two continuous floors, a single wheel running gear configuration is selected. Equipped with independently rotating wheels instead of a usual wheel-set, a track guidance control becomes necessary. In terms of an advanced control and observer development the implementation of validated simulation models is absolutely essential. Therefore, the paper gives a short overview of the hardware of the scaled Experimental Running Gear on the DLR roller rig representing the NGT single wheel running gear. Using the DLR RailwayDynamics Library three different models of the running gear are implemented, which vary in complexity and can be used for different analysis methods. Finally, some significant simulation results of the particular simulation models are presented and discussed.

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Section: Discussionmentioning

confidence: 99%

Different Models of a Scaled Experimental Running Gear for the DLR RailwayDynamics Library

Schwarz

Heckmann

Keck

2015

Linköping Electronic Conference Proceedings

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“…Already initiated and future applications of the library concern the synthesis of advanced observer and control lay-outs, (Schwarz et al, 2018), (Heckmann et al, 2016), and multidisciplinary simulation tasks such as the interaction of running dynamics and drive train, the systems engineering of pneumatic brake systems (Ehret, 2018) and research on advanced system design and assessment scenarios in order to ensure the crosswind stability of railway vehicles, cf. (Heckmann et al, 2014b).…”

Section: 3384/ecp19157323mentioning

confidence: 99%

Overview on the DLR RailwayDynamics Library

Heckmann

Ehret

Grether

et al. 2019

Linköping Electronic Conference Proceedings

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The newly released commercial DLR RailwayDynamics Library is intended to support the design, optimization and control development as well as hardware-and software-inthe-loop testing of railway vehicles mainly on the system level. To this aim, it provides the capability to consider vehicle dynamics issues such as traction, comfort and safety in multi-domain engineering tasks by preparation of vehicle, track, wheel-rail contact models and roller rig scenarios on different levels of detail. Exploiting several precursor papers on specific railway modeling topics, their models have been collected and reorganized in order to propose a sound modeling framework dedicated to railway dynamics. The paper gives an overview on particular concepts and ideas of the library, presents several application examples and discusses two approaches to organize multi-domain modeling.

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“…Indeed, an active control is necessary to ensure the stability of the lateral dynamics. The 1:5 scaled experimental running gear can be controlled by a robust state feedback control with gain scheduling as proved in [1]. To apply the control structure to the 1:1 multibody model of the complete train the properties of curved tracks has to be regarded additionally.…”

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Dynamics of a running gear with IRWs on curved tracks for a robust control development

Grether

2017

Proc Appl Math and Mech

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As a major task of the DLR-internal project "Next Generation Train", robust state feedback control with gain scheduling was sucessfully applied to guide the experimental running gear with independently rotating wheels (IRWs) at a 1:5 scaled roller rig, see [1]. However, the adaptation of the control structure to the 1:1 multibody model requires to additionally consider the properties of curved tracks. For that reason, an analytical model of a running gear with IRWs is deduced using Euler-Lagrange-equations and taking superelevation and track curvature into account. Furthermore, the complexity of the system is reduced to allow for a robust feedback control synthesis and feed-forward control including model inversion. Finally, the model is discussed and a first approach for a feed-forward control in transition curves is shown.

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Research on aerodynamic experiment and dynamic performance of new developed V500 pantograph at 400 km/h or higher

Cited by 8 publications

References 0 publications

Different Models of a Scaled Experimental Running Gear for the DLR RailwayDynamics Library

Different Models of a Scaled Experimental Running Gear for the DLR RailwayDynamics Library

Overview on the DLR RailwayDynamics Library

Dynamics of a running gear with IRWs on curved tracks for a robust control development

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