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C. Sánchez-Rebollo¹, J.R. Jimenez-Octavio² and A. Carnicero²

¹Instituto de Investigación Tecnológica, Universidad Pontificia Comillas, Madrid, Spain
²Department of Mechanical Engineering, Universidad Pontificia Comillas, Madrid, Spain

doi:10.4203/ccp.110.112

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, "The Influence of Wind Load Modelling in the Dynamic Simulation of Overhead Catenary Lines", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 112, 2016. doi:10.4203/ccp.110.112

Keywords: cable, catenary, wind load, intermittence, dynamics, finite element.

Summary

Overhead catenary lines (OCL) are subjected to different loads, both those due to the interaction with the pantograph and those others mostly meteorological. The purpose of this paper is to analyze the dynamic response of a flexible cable structure subjected to different wind models.

While some wind load models assume a normal distribution of the speed, some others include more realistically the stochastic nature of the phenomenon. Wind speed has the property of intermittency, i.e. at different temporal scales the behaviour of its distribution is consequently different too. Whereas at a large temporal scale wind velocity increments can be considered normal-distributed, at small temporal scales they fit better to normal inverse Gaussian distributions. Therefore, this paper presents a stochastic model of wind loads whose random component is calculated from a non-Gaussian Ornstein-Uhlenbeck process, which is able to reflect the change of wind load distribution at different temporal scales.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 112 The Influence of Wind Load Modelling in the Dynamic Simulation of Overhead Catenary Lines C. Sánchez-Rebollo¹, J.R. Jimenez-Octavio² and A. Carnicero² ¹Instituto de Investigación Tecnológica, Universidad Pontificia Comillas, Madrid, Spain ²Department of Mechanical Engineering, Universidad Pontificia Comillas, Madrid, Spain doi:10.4203/ccp.110.112 purchase the full-text of this paper Full Bibliographic Reference for this paper , "The Influence of Wind Load Modelling in the Dynamic Simulation of Overhead Catenary Lines", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 112, 2016. doi:10.4203/ccp.110.112 Keywords: cable, catenary, wind load, intermittence, dynamics, finite element. Summary Overhead catenary lines (OCL) are subjected to different loads, both those due to the interaction with the pantograph and those others mostly meteorological. The purpose of this paper is to analyze the dynamic response of a flexible cable structure subjected to different wind models. While some wind load models assume a normal distribution of the speed, some others include more realistically the stochastic nature of the phenomenon. Wind speed has the property of intermittency, i.e. at different temporal scales the behaviour of its distribution is consequently different too. Whereas at a large temporal scale wind velocity increments can be considered normal-distributed, at small temporal scales they fit better to normal inverse Gaussian distributions. Therefore, this paper presents a stochastic model of wind loads whose random component is calculated from a non-Gaussian Ornstein-Uhlenbeck process, which is able to reflect the change of wind load distribution at different temporal scales. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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