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Title: Simulation of clearances between trains and the infrastructure
Author: Johnson, David M.
ISNI:       0000 0001 3591 0969
Awarding Body: Imperial College London
Current Institution: Imperial College London
Date of Award: 2008
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Trains need to be bigger and faster, which places strains on the interface between them and the infrastructure. This thesis examines the nature of one of these interfaces, namely clearance or gauging. There is little published work on the management of clearances beyond regulatory documents. This thesis considered many aspects of the engineering of clearance to develop a mathematic simulation of the gap between moving trains and the infrastructure. It proposes the concept of replacing gauge clearance with a comparison between measured infrastructure and dynamic simulations of trains. The thesis follows four themes. A model is developed which allows the swept envelope of a moving train to be calculated, using simulation techniques. This is followed by an examination of infrastructure measuring methods and the development of a measuring system for determining the size and shape of the railway network. Finally, the modelling process is used to determine the maximum size of train that may run on specific routes by optimising the fit between train and infrastructure.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available