Mathematical Foundation of Railroad Vehicle Systems

2021 ◽  
Author(s):  
Ahmed Shabana
Keyword(s):  
Mathematical Foundation ◽  
Vehicle Systems ◽  
Railroad Vehicle

Implementation of Low Computational Cost Nonlinear Formulation for Multibody Railroad Vehicle Systems

2007 ◽  
Author(s):  
Graham G. Sanborn ◽  
Jason R. Heineman ◽  
Ahmed A. Shabana
Keyword(s):  
Degrees Of Freedom ◽  
Computational Cost ◽  
Companion Paper ◽  
Computer Interface ◽  
Model Parameters ◽  
Nonlinear Formulation ◽  
Vehicle Systems ◽  
Railroad Applications ◽  
Railroad Vehicle ◽  
Low Computational Cost

In a companion paper [1], a low computational cost nonlinear formulation was presented to for the analysis of the forces of long trains. The formulation allows systematically changing the number of degrees of freedom of each rail car and includes the force inputs that are typically found in railroad applications. In this paper, the implementation of this nonlinear formulation is described. A computer interface is also developed in order to allow the user to operate a virtual train model in real time and also change the model parameters and car connectivity conditions. Numerical results are presented in order to demonstrate the use of the formulation proposed and its computer implementation.

scholarly journals Trajectory Coordinate Constraints in Multibody Railroad Vehicle Systems

2007 ◽  
Vol 1 (3) ◽  
pp. 481-490 ◽  
Author(s):  
Hiroyuki SUGIYAMA ◽  
Ahmed A. SHABANA
Keyword(s):  
Vehicle Systems ◽  
Railroad Vehicle

A Nonlinear Rail Vehicle Dynamics Computer Program SAMS/Rail: Part 2—Preliminary Validation of BETA Release

2009 ◽  
Author(s):  
Brian Marquis ◽  
Erik Curtis ◽  
Khaled E. Zaazaa ◽  
Brian Whitten ◽  
Magdy El-Sibaie ◽  
...  
Keyword(s):  
General Purpose ◽  
Systematic Analysis ◽  
University Of Illinois ◽  
Preliminary Validation ◽  
Vehicle Systems ◽  
Rail Vehicle Dynamics ◽  
And Performance ◽  
The University ◽  
Railroad Vehicle ◽  
Beta Version

The Federal Railroad Administration is sponsoring a research project at the University of Illinois at Chicago (UIC) to develop state of the art modeling and simulation capabilities for railroad vehicle systems. This involves the development of a general purpose code for the dynamic simulation and performance evaluation of railroad vehicle systems. During development of the beta version, SAMS/Rail (Systematic Analysis of Multibody Systems/Rail), a number of simplified models have been constructed to validate the program. These examples include single wheelset models, truck models, full vehicle models and industry recognized benchmarks. In each of these cases, comparisons have been made to available solutions. These results are described in this paper.

Modelling of structural flexiblity in multibody railroad vehicle systems

2013 ◽  
Vol 51 (7) ◽  
pp. 1027-1058 ◽  
Author(s):  
José L. Escalona ◽  
Hiroyuki Sugiyama ◽  
Ahmed A. Shabana
Keyword(s):  
Vehicle Systems ◽  
Railroad Vehicle

Frenet force analysis in performance evaluation of railroad vehicle systems

2021 ◽  
Author(s):  
Dario Bettamin ◽  
Ahmed A. Shabana ◽  
Nicola Bosso ◽  
Nicolò Zampieri
Keyword(s):  
Performance Evaluation ◽  
Force Analysis ◽  
Vehicle Systems ◽  
Railroad Vehicle
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