The impact of aerodynamics on fuel consumption in railway applications
Journal Title: INCAS BULLETIN - Year 2012, Vol 4, Issue 1
Abstract
The main consequence of on air flow surrounding a moving train resides in the aerodynamic drag and a certain pressure distribution on the frontal and lateral surfaces of the vehicle. The actual value of the aerodynamic drag (if pre-determined) may lead to a more accurate design of the whole locomotive power transmission. The aerodynamic drag may be estimated by using two specific experiments: the traction method and the free launch method. While the first one uses highly complex equipment, the second is easier to use due to the relative low number of devices required. The present work’s main goal is to illustrate the importance of aerodynamic design of the railway vehicles, as their performances are influenced by the aerodynamic drag. In order to illustrate the influence of the aerodynamic shape of o locomotive body, we have chosen the latest diesel model available on the local market, the Class 621 EGM locomotives, currently in service at the national passenger railway operator, CFR Călători SA.
Authors and Affiliations
Ioan SEBESAN, Bogdan TARUS
Keywords
Related Articles
- EP ID EP129955
- DOI 10.13111/2066-8201.2012.4.1.10
- Views 110
- Downloads 0
The Design Algorithm of the Optimum Structure from the Elasticity Module Point of View for Composite Materials
: Unlike other researches in the field, the simultaneous influence of all structural elements on the elasticity module is studied in this paper. The obtained physical – mathematical model is in good accordance with the e...
DESIGN & ANALYSIS TOOLS AND TECHNIQUES FOR AEROSPACE STRUCTURES IN A 3D VISUAL ENVIRONMENT
The main objective of this project is to develop a set of tools and to integrate techniques in a software package which is build on structure analysis applications based on Romanian engineers experience in designing and...
STUDIES ON FLUTTER PREDICTION
The purpose of this paper is to study the instability of the dynamic flutter. The justification is expressed by the fact that the occurrence of flutter within the aircraft’s flight envelope results in irreversible struct...
Analysis of modern military jet trainer aircraft
New technical solutions and the application of modern technologies have led to combat aircraft configurations with a significant improvement in reliability, flight performance and operational performance through the crea...
CESSNA Citation X Engine Model Identification using Neural Networks and Extended Great Deluge Algorithms
Accurate numerical engine model is an enabling factor in aircraft performance evaluation and improvement. In this work, nonlinear engine input-output relationships are learned and predicted by two cascading multilayer fe...