Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles
Train circulation is a random dynamic phenomenon and, according to the different frequencies of the loads it imposes, there exists the corresponding response of track superstructure. Random dynamic phenomena are generally approached through the probability of occurrence (for stochastic processes see...
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ftunivthessaly:oai:ir.lib.uth.gr:11615/27889 2023-05-15T17:36:58+02:00 Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles Giannakos, K. 2014 http://hdl.handle.net/11615/27889 unknown 19984448 http://hdl.handle.net/11615/27889 http://www.scopus.com/inward/record.url?eid=2-s2.0-84923053462&partnerID=40&md5=28fbe45da3e0104b67f9e8858bfe4f95 Actions Dynamic loads Joints Non suspended masses Railway track Railway vehicle Reactions Second order differential equation of motion Stiffness Suspended masses Weldings journalArticle 2014 ftunivthessaly 2021-07-02T06:20:18Z Train circulation is a random dynamic phenomenon and, according to the different frequencies of the loads it imposes, there exists the corresponding response of track superstructure. Random dynamic phenomena are generally approached through the probability of occurrence (for stochastic processes see [1]). The railway track is modeled as a continuous beam on elastic support. At the moment when an axle of a railway vehicle passes from the location of a support point of a rail, that is a sleeper, a random dynamic load is applied on the sleeper. The theoretical approach for the estimation of the dynamic loading of a sleeper demands the analysis of the total load acting on the sleeper to individual component loads-actions, which, in general, can be divided into: the static component of the load‚ and the relevant to it reaction/action per support point of the rail (sleeper), the semi-static component of the load, and the relevant to it reaction/action per support point of the rail (sleeper) and the dynamic component of the load, and the relevant to it reaction/action per support point of the rail (sleeper). The motion of a railway vehicle on the rail running table –of the railway track– is described by formulas and it is illustrated through diagrams which have the form of a “signal”. It is a random/ stochastic dynamic phenomenon. The general equation that describes the motion is the second order differential equation (of motion). In the present paper the dynamic component of the Load and the relevant Action/ Reaction on each support point of the rail are investigated through a sensitivity analysis by variating parameters of the second order differential equation of motion of the Non Suspended Masses of the Vehicle ([2],[3]) and specifically the transient response of the reaction/ action on each support point (sleeper) of the rail. © 2014, North Atlantic University Union. All rights reserved. Article in Journal/Newspaper North Atlantic University of Thessaly Institutional Repository |
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University of Thessaly Institutional Repository |
op_collection_id |
ftunivthessaly |
language |
unknown |
topic |
Actions Dynamic loads Joints Non suspended masses Railway track Railway vehicle Reactions Second order differential equation of motion Stiffness Suspended masses Weldings |
spellingShingle |
Actions Dynamic loads Joints Non suspended masses Railway track Railway vehicle Reactions Second order differential equation of motion Stiffness Suspended masses Weldings Giannakos, K. Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
topic_facet |
Actions Dynamic loads Joints Non suspended masses Railway track Railway vehicle Reactions Second order differential equation of motion Stiffness Suspended masses Weldings |
description |
Train circulation is a random dynamic phenomenon and, according to the different frequencies of the loads it imposes, there exists the corresponding response of track superstructure. Random dynamic phenomena are generally approached through the probability of occurrence (for stochastic processes see [1]). The railway track is modeled as a continuous beam on elastic support. At the moment when an axle of a railway vehicle passes from the location of a support point of a rail, that is a sleeper, a random dynamic load is applied on the sleeper. The theoretical approach for the estimation of the dynamic loading of a sleeper demands the analysis of the total load acting on the sleeper to individual component loads-actions, which, in general, can be divided into: the static component of the load‚ and the relevant to it reaction/action per support point of the rail (sleeper), the semi-static component of the load, and the relevant to it reaction/action per support point of the rail (sleeper) and the dynamic component of the load, and the relevant to it reaction/action per support point of the rail (sleeper). The motion of a railway vehicle on the rail running table –of the railway track– is described by formulas and it is illustrated through diagrams which have the form of a “signal”. It is a random/ stochastic dynamic phenomenon. The general equation that describes the motion is the second order differential equation (of motion). In the present paper the dynamic component of the Load and the relevant Action/ Reaction on each support point of the rail are investigated through a sensitivity analysis by variating parameters of the second order differential equation of motion of the Non Suspended Masses of the Vehicle ([2],[3]) and specifically the transient response of the reaction/ action on each support point (sleeper) of the rail. © 2014, North Atlantic University Union. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Giannakos, K. |
author_facet |
Giannakos, K. |
author_sort |
Giannakos, K. |
title |
Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
title_short |
Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
title_full |
Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
title_fullStr |
Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
title_full_unstemmed |
Influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
title_sort |
influence of a bent or battered joint or welding on the dynamic loads due to the non-suspended masses of railway vehicles |
publishDate |
2014 |
url |
http://hdl.handle.net/11615/27889 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.scopus.com/inward/record.url?eid=2-s2.0-84923053462&partnerID=40&md5=28fbe45da3e0104b67f9e8858bfe4f95 |
op_relation |
19984448 http://hdl.handle.net/11615/27889 |
_version_ |
1766136637369090048 |