Modeling and Simulation of High Speed Railway Vehicle Dynamics

Date

2015-03-04

Author

Tuğçe, Yüksel
Ünlüsoy, Yavuz Samim

Metadata

Show full item record

Item Usage Stats

272
views

0
downloads

This study aims to provide mathematical model(s) for the simulation of high speed railway vehicles. The dynamic behavior of a high speed train is divided into three uncoupled motions: vertical, lateral, and longitudinal. Two models with different complexities are used to simulate vertical plane response of the vehicle to track vertical irregularities. Different wheel-rail contact formulations are utilized to simulate the lateral plane motion of the vehicle on tangent and curved tracks. For both vertical and lateral dynamics modeling, a single wagon is assumed to simulate the whole vehicle. Finally, wagon interactions are taken into account and the response of a full train to different traction/braking inputs are analyzed. The models are parametric and they are used to develop computer programs to simulate train motion. Using a set of parameters obtained from literature, different case studies were performed to test model functionality. It was observed that 10 degree of freedom model can predict the vertical behavior quite well. In wheel-rail contact modeling, the nonlinearities should be included in the system and the wheel profile with its tread and flange sections should be introduced to obtain accurate results. Finally, in longitudinal dynamics modeling, the stopping time and distance between wagons with respect to braking delay and wagon to wagon connection are examined.

Subject Keywords

Railway vehicle dynamics, High speed train, Modeling, Simulation

URI

www.ic-are.org
https://hdl.handle.net/11511/79744

Conference Name

nternational Congress on Advanced Railway Engineering

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Modern mathematical methods in modeling and dynamics of regulatory systems of gene-environment networks Defterli, Özlem; Kaya Merdan, Songül; Weber, Gerhard Wilhelm; Department of Mathematics (2011) Inferring and anticipation of genetic networks based on experimental data and environmental measurements is a challenging research problem of mathematical modeling. In this thesis, we discuss gene-environment network models whose dynamics are represented by a class of time-continuous systems of ordinary differential equations containing unknown parameters to be optimized. Accordingly, time-discrete version of that model class is studied and improved by using different numerical methods. In this aspect, 3rd-...
Model based preliminary design and optimization of aircrafts Özdemir, Mustafa; Kurtuluş, Dilek Funda; Department of Aerospace Engineering (2022-8) This study aims to create an interdisciplinary, multi-level design approach that is based on six degrees of freedom mathematical model. The model provides all disciplines to communicate with each other simultaneously, thanks to an automated process chain system. The main advantage of automatization of analyses for the design process is observing interdisciplinary effects clearly without wasting time and money. Instead of using only empirical relations, in this study, calculations are originating from trim a...
A relational perspective of institutional work Topal, Çağrı (Cambridge University Press (CUP), 2015-07-01) This study develops a relational model of institutional work. The past research implies that the nature of relationships between individual actors actually shapes the nature of institutional work the actors engage in. However, the research falls short of an explicit, systematic analysis of different relationships between the actors and their work implications. This study basically argues that the actors' power positions, which might be dominant or subordinate in relation to those of other actors, and their ...
Determination of Rainfall – Runoff Relationship in Yenicegoruce Basin with HEC-HMS Hydrologic Model MESTA, BUKET; KARGI, PINAR GÖKÇE; TEZYAPAR, İPEK; AYVAZ, MUSTAFA TAMER; GÖKTAŞ, RECEP KAYA; Kentel Erdoğan, Elçin; TEZEL, ULAŞ (2019-01-01) The goal of this study is to model rainfall-runoff process using HEC-HMS developed by U.S. Army Corps of Engineers for the 10,508 km2 catchment that has E01A012-Yenicegörüce stream gage at its outlet which is located just at the upstream of the point where Meric and Ergene Rivers meet. This study is conducted as a part of 115Y064 numbered “Development of a geographical information systems based decision-making tool for water quality management of Ergene watershed using pollutant fingerprints” project funded...
Nonlinear dynamic modeling of gear-shaft-disk-bearing systems using finite elements and describing functions Maliha, R; Dogruer, CU; Özgüven, Hasan Nevzat (ASME International, 2004-05-01) This study presents a new nonlinear dynamic model for a gear-shaft-disk-bearing system. A nonlinear dynamic model of a spur gear pair is coupled with linear finite element models of shafts carrying them, and with discrete models of bearings and disks. The nonlinear elasticity term resulting from backlash is expressed by a describing function, and a method developed in previous studies to determine multi harmonic responses of nonlinear multi-degree-of-freedom systems is employed for the solution. The excitat...

Citation Formats

Y. Tuğçe and Y. S. Ünlüsoy, “Modeling and Simulation of High Speed Railway Vehicle Dynamics,” presented at the nternational Congress on Advanced Railway Engineering, İstanbul, Türkiye, 2015, Accessed: 00, 2021. [Online]. Available: www.ic-are.org.