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Catenary Deflection Under Wind and Ice Loading
Canadian Pacific Consulting Services
L. C. Tait
Morrison Hershfield Limited
Transportation Development Centre (Canada)
出版
Transport Canada, Development
, 1986
URL
http://books.google.com.hk/books?id=BzrXtgAACAAJ&hl=&source=gbs_api
註釋
A full-scale catenary test section, typical of a 25-50 kV, 60Hz main line heavy haul freight railway, was installed on a wind-exposed site on Prince Edward Island. Ultrasonic ranging techniques were used for measuring horizontal and vertical dynamic deflections of the contact wire. Transducer outputs were automatically recorded by an on-site microcomputer for 5 months. Results are depicted as graphical plots of mean and peak deflections against the mean wind speed normal to the contact wire. No usable ice loading data were obtained. The report includes a microcomputer software program to predict wind-induced deflections of simple catenary overhead contact systems of the level or sagged contact type. Recommendations are made for values of wire drag coefficient, mean wind speed, and ice accretion to be used in the program.