K Mutch's scientific contributions

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Publication (1)

Making the eye blink - Modelling the operation of the Gateshead Millennium Bridge
Article
  • Jul 2003
This paper considers the system dynamics associated with a hydraulic system moving a large flexible structure, namely the Gateshead Millennium Bridge. The hydraulic components possess a range of non-linear characteristics, which become coupled to the bridge structural dynamics. The bridge structure is lightly damped and may be represented by a line...
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Citations

... Future machine systems would benefit significantly if their operational capabilities and precision under hydraulic actuation could be increased. Although hydraulically actuated systems offer high power densities and are capable of delivering large forces over long strokes (e.g. 3 MN over 3 m to open the Gateshead Millennium Bridge [1]), they have a relatively low bandwidth, typically between 1 and 100 Hz. Piezoelectric actuators, on the other hand, have relatively high force capacity and bandwidth (. 1 kHz), but their stroke lengths are several orders of magnitude lower than hydraulic actuators. ...
Reference: Piezoelectrically actuated hydraulic valve design for high bandwidth and flow performance
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