Computer-Aided Analysis of Urban Railway Vehicles

Datoussaïd, Sélim; Verlinden, Olivier; Wenderloot, Ludwig; Conti, C.

doi:10.1080/00423119808969448

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…The Sperling index at different frequency will be calculated by (8), and the total sperling index within the whole frequency range is calculated by (9 (9) According to standard of railway ministry of our country, the running stability of railway vehicles is mainly indicated with Sperling index, which can be calculated with the above calculation theories.…”

Section: B Calculation Theory Of Running Stability Of Railway Vehiclesmentioning

confidence: 99%

Running Stability Analysis of Railway Vehicles Based on Three-Dimensional CAD Model

Peng

Yang

Feng

2010

2010 International Conference on Intelligent Computation Technology and Automation

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Inaccurate results are usually produced due to lack of precise dynamic parameters when analyzing the running stability of railway vehicles. In this paper, a new solution is proposed to conduct the running stability analysis of railway vehicles supported by their three-dimensional (3D) CAD models, which are realized based on the intrinsic mapping relationship between the dynamic model and the 3D CAD model of railway vehicles. First, a dynamic model library of railway vehicles is established, and for each model type the software package for running stability analysis is programmed with Matlab. Then according to the requested parameters of each model, the corresponding dynamic parameter extraction flow based on 3D CAD model is designed by the secondary development of CAD software. The user chooses CAD objects and sets part of dynamic parameters using a wizard-style guiding dialogs; the background program will automatically and accurately extract the physical and geometric parameters from the CAD model, and then call the Matlab software package and transfer the parameter values, with analysis results presented in CAD environment. The case study shows that, this method can not only ensure the precision of dynamic parameters, but also improve the dynamic modeling efficiency for running stability analysis of railway vehicles.

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Section: B Calculation Theory Of Running Stability Of Railway Vehiclesmentioning

confidence: 99%

Running Stability Analysis of Railway Vehicles Based on Three-Dimensional CAD Model

Peng

Yang

Feng

2010

2010 International Conference on Intelligent Computation Technology and Automation

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“…This negative effect is possible to reduce by using independently rotating wheels with regards to a wheelset axle, whereby there are several applications and producers of such solutions [18][19][20][21]. In comparison with a standard wheelset, however, different running properties of a rail vehicle (usually trams) have to be considered.…”

Section: Introductionmentioning

confidence: 99%

Clarification of Features of the Wheel Movement with a Perspective Constructive Scheme on a Rail

et al. 2020

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The article presents the continuation of studies of the features of the wheel movement the traditional and perspective constructive scheme on a rail. Unlike the traditional design, the perspective constructive scheme of the wheel allows independent relative rotation of the support surface wheel and of its guide surface (flange) relative to their common axis of rotation. Previous authors’ works did not take into account the influence of the level of slippage in the main contact of the wheel with the rail on the value of the slippage rate in its flange contact. This article further examines the influence of this factor for both wheel designs. The results of the presented studies confirm the possibility of reducing slippage in the flange contact with the rail for a wheel of a promising design scheme in comparison with a traditional wheel. Reducing the power of friction forces in the contact of the wheel flange of a promising design scheme will reduce the resistance to movement of such a wheel along the rail, especially in curved track sections.

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“…Physics of failure approaches rely on the study of the physics of underlying failure mechanisms (e.g. multi-body simulation of railway vehicle dynamics, local analysis of wheel-rail contact and wheel/rail material wear model) (De Arizon et al, 2007;Li et al, 2010;Datoussaid et al, 1998;Ansari and Ashtiyani, 2006;Auciello et al, 2013). Data-driven approaches estimate RUL via data fitting mainly through machine learning and other statistical approaches (Wang, Xu, Yuan, Zhao and Chen, 2015).…”

Section: Introductionmentioning

confidence: 99%

Remaining useful life estimation of metropolitan train wheels considering measurement error

Jiang

Banjević

Mingcheng

et al. 2018

JQME

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Purpose The purpose of this paper is to develop an approach for estimating the remaining useful life (RUL) of metropolitan train wheels considering measurement error. Design/methodology/approach The paper proposes a wear model of a metropolitan train wheel based on a discrete state space model; the model considers the wheel’s stochastic degradation and measurement error simultaneously. The paper estimates the RUL on the basis of the estimated degradation state. Finally, it presents a case study to verify the proposed approach. The results indicate that the proposed method is superior to methods that do not consider measurement error and can improve the accuracy of the estimated RUL. Findings RUL estimation is a key issue in condition-based maintenance and prognostics and health management. With the rapid development of advanced sensor technologies and data acquisition facilities for the maintenance of metropolitan train wheels, condition monitoring (CM) is becoming more accurate and more affordable, creating the possibility of estimating the RUL of wheels using CM data. However, the measurements of the wheels, especially the wayside measurements, are not yet precise enough. On the other hand, few existing studies of the RUL estimation of train wheels consider measurement error. Practical implications The approach described in this paper will make the RUL estimation of metropolitan train wheels easier and more precise. Originality/value Hundreds of million yuan are wasted every year due to over re-profiling of rail wheels in China. The ability to precisely estimate RUL will reduce the number of re-profiling activities and achieve significant economic benefits. More generally, the paper could enrich the body of knowledge of RUL estimation for a slowly degrading system considering measurement error.

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Computer-Aided Analysis of Urban Railway Vehicles

Cited by 6 publications

References 2 publications

Running Stability Analysis of Railway Vehicles Based on Three-Dimensional CAD Model

Running Stability Analysis of Railway Vehicles Based on Three-Dimensional CAD Model

Clarification of Features of the Wheel Movement with a Perspective Constructive Scheme on a Rail

Remaining useful life estimation of metropolitan train wheels considering measurement error

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