Measurement of the damped oscillation of a section of the UK East Coast Main Line (ECML) catenary/contact wire system was undertaken, and the natural frequency and mechanical damping were found to be 1.4Hz and 0.05 respectively. This information was used to assess the effect of increasing the mechanical damping ratio on the susceptibility of the system to an aerodynamic galloping instability. The section of line tested was known to gallop at wind speeds of approximately 40 mile/h, and theoretical and experimental work verified this. A friction damper arm was designed and three units were fitted to the section of line affected. The introduction of increased mechanical damping was found to raise the mechanical damping coefficient of the line ...
D.Ing. (Mechanical Engineering)This research proposed to develop a mathematical model for the predic...
Until recently, the design of the transmission lines and the structures supporting the lines have be...
Classical quasi-steady galloping analysis deals exclusively with cases of across-wind vibrations, le...
Measurement of the damped oscillation of a section of the UK East Coast Main Line (ECML) catenary/co...
An experimental analysis of the aerodynamic characteristics of catenary contact wires is presented. ...
The objective of this master thesis was to determine the static aerodynamic forces on a contact wire...
Wind tunnel test results of the aerodynamic coefficients of sector-shape iced eight bundle conductor...
Galloping of an iced transmission line subjected to a moderating airflow has been analysed in this s...
Galloping of overhead transmission lines is characterised by large-amplitude, low-frequency, vertica...
This paper mainly aims at revealing the nature of the galloping oscillation of iced catenary system ...
The results of wind tunnel tests on a series of two-dimensional modela simulating circular cables wi...
peer reviewedPower line galloping is a large vibration (up to the sag) at very low frequency (fracti...
The mechanisms and onset conditions related to dry inclined bridge stay cable galloping have been st...
This Thesis describes a technique for collecting, moulding and testing naturally occurring ice accre...
Wind action on ice-covered transmission lines causes galloping, which is a problem because it can in...
D.Ing. (Mechanical Engineering)This research proposed to develop a mathematical model for the predic...
Until recently, the design of the transmission lines and the structures supporting the lines have be...
Classical quasi-steady galloping analysis deals exclusively with cases of across-wind vibrations, le...
Measurement of the damped oscillation of a section of the UK East Coast Main Line (ECML) catenary/co...
An experimental analysis of the aerodynamic characteristics of catenary contact wires is presented. ...
The objective of this master thesis was to determine the static aerodynamic forces on a contact wire...
Wind tunnel test results of the aerodynamic coefficients of sector-shape iced eight bundle conductor...
Galloping of an iced transmission line subjected to a moderating airflow has been analysed in this s...
Galloping of overhead transmission lines is characterised by large-amplitude, low-frequency, vertica...
This paper mainly aims at revealing the nature of the galloping oscillation of iced catenary system ...
The results of wind tunnel tests on a series of two-dimensional modela simulating circular cables wi...
peer reviewedPower line galloping is a large vibration (up to the sag) at very low frequency (fracti...
The mechanisms and onset conditions related to dry inclined bridge stay cable galloping have been st...
This Thesis describes a technique for collecting, moulding and testing naturally occurring ice accre...
Wind action on ice-covered transmission lines causes galloping, which is a problem because it can in...
D.Ing. (Mechanical Engineering)This research proposed to develop a mathematical model for the predic...
Until recently, the design of the transmission lines and the structures supporting the lines have be...
Classical quasi-steady galloping analysis deals exclusively with cases of across-wind vibrations, le...