Multibody model of railway vehicles with weakly coupled vertical and lateral dynamics

Muñoz, Sergio; Aceituno, Javier F.; Urda, Pedro; Escalona, José L.

doi:10.1016/j.ymssp.2018.06.019

Cited by 46 publications

(30 citation statements)

References 16 publications

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“…This methodology results in an improvement in the computational efficiency of the model. As shown in [7] the reduced formulations is up to 3 times faster than a full 3D multibody model formulation. The experimental validation has been carried out using a scaled railway vehicle instrumented with several sensors which moves on an open experimental scaled track built on the rooftop of the School of Engineering at the University of Seville.…”

Section: Discussionmentioning

confidence: 98%

“…The dynamic model used in this work was previously presented by the authors in [7]. A brief description of the model is given next.…”

Section: Dynamic Modellingmentioning

confidence: 99%

“…This explanation has been corroborated by the use of a full 3D coupled dynamic model previously proposed by the authors [5] which has been able to capture this vibration mode. An extended comparison between the simplified model proposed in this manuscript and the mentioned full-3D multibody model is presented by the authors in [7]. An equivalent analysis has been carried out with the measurement of IMU installed in the bogie frame.…”

Section: Simulations To Experiments Comparisonmentioning

confidence: 99%

“…There are a large number of references in the scientific literature concerning this subject and addressing it from different perspectives. One example is the work of Escalona et al [5][6][7] which analyses the dynamics of the vehicle while interacting with the track from a theoretical point of view. Other works [8] combine theory and experiments trying to achieve a more precise estimation of wheel-rail contact forces from the inertial response of the vehicle.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, the experimental validation of a railroad multibody simulation model is presented. The mentioned model has been fully developed by the Department of Mechanical Engineering at the University of Seville [7]. It assumes that vertical and lateral dynamics are weakly coupled through the suspension forces.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Application and Experimental Validation of a Multibody Model with Weakly Coupled Lateral and Vertical Dynamics to a Scaled Railway Vehicle

Urda

Muñoz

Aceituno

et al. 2020

Sensors

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In this paper, a multibody dynamic model of a railway vehicle that assumes that vertical and lateral dynamics are weakly coupled, has been experimentally validated using an instrumented scaled vehicle running on a 5-inch-wide experimental track. The proposed linearised model treats the vertical and lateral dynamics of the multibody system almost independently, being coupled exclusively by the suspension forces. Several experiments have been carried out at the scaled railroad facilities at the University of Seville in order to test and validate the simulation model under different working conditions. The scaled vehicle used in the experiments is a bogie instrumented with various sensors that register the accelerations and angular velocities of the vehicle, its forward velocity, its position along the track, and the wheel–rail contact forces in the front wheelset. The obtained results demonstrate how the proposed computational model correctly reproduces the dynamics of the real mechanical system in an efficient computational manner.

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Section: Discussionmentioning

confidence: 98%

“…The dynamic model used in this work was previously presented by the authors in [7]. A brief description of the model is given next.…”

Section: Dynamic Modellingmentioning

confidence: 99%