Non-linear dynamics of magnetic bearing systems. The aim of this project is to gain a much deeper insight into the effects of non-linearities on the dynamic behavior and on the performance of active magnetic bearings(AMBs). This project will focus attention on stability analysis, bifurcation control, malfunction analysis, and nonlinear dynamic behavior. The expected outcomes are better understanding and prediction of nonlinear behavior and control of AMBs and improved guidelines for designing sa ....Non-linear dynamics of magnetic bearing systems. The aim of this project is to gain a much deeper insight into the effects of non-linearities on the dynamic behavior and on the performance of active magnetic bearings(AMBs). This project will focus attention on stability analysis, bifurcation control, malfunction analysis, and nonlinear dynamic behavior. The expected outcomes are better understanding and prediction of nonlinear behavior and control of AMBs and improved guidelines for designing safer and more effective AMBs.Read moreRead less
Integrated On-line Condition Monitoring and Failure Diagnosis in Induction Motors. Electric motors are widely used in industry. Traditional maintenance approaches have involved regular overhauls/inspections and replacement after a fixed period. On-line condition monitoring involves taking non-invasive measurements to determine the motor's "health" and only scheduling maintenance when required. The benefits are reduced unexpected failures and reduced maintenance costs due to the greater maintena ....Integrated On-line Condition Monitoring and Failure Diagnosis in Induction Motors. Electric motors are widely used in industry. Traditional maintenance approaches have involved regular overhauls/inspections and replacement after a fixed period. On-line condition monitoring involves taking non-invasive measurements to determine the motor's "health" and only scheduling maintenance when required. The benefits are reduced unexpected failures and reduced maintenance costs due to the greater maintenance intervals. The majority of existing work on condition monitoring has looked at using a single sensor type (eg. vibration) for fault prediction. The proposed work seeks to improve the reliability and accuracy of fault diagnosis by correlating information from multiple sensor types, which can be accessed remotely.Read moreRead less
Investigation of the audio spotlight for active noise control. The focus of this project is to investigate a new technology - the audio spotlight - with the aim of developing an active noise control (ANC) system that incorporates the audio spotlight as a control source. The audio spotlight offers the potential to overcome or significantly modify the fundamental physical constraints that limit the performance of ANC systems that use conventional loudspeakers as control sources. Just as audio spot ....Investigation of the audio spotlight for active noise control. The focus of this project is to investigate a new technology - the audio spotlight - with the aim of developing an active noise control (ANC) system that incorporates the audio spotlight as a control source. The audio spotlight offers the potential to overcome or significantly modify the fundamental physical constraints that limit the performance of ANC systems that use conventional loudspeakers as control sources. Just as audio spotlights may be the most radical technological development in acoustics since the invention of the coil loudspeaker, successful incorporation of an audio spotlight into an active noise control system will revolutionise active noise control.Read moreRead less
Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the ....Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the geometry of the original containing vessel, together with balances between forces such as inertia, gravity, viscosity, viscoelasticity, and surface tension, through a theoretical, computational and experimental study of the fluid mechanics.Read moreRead less
Topological Optimisation of Fluid Mixing. The proposed research is aimed at improving the efficiency of fluid mixers,
which in the long term has potential to reduce vastly the economic and
environmental costs associated with large-scale mixing processes in Australian
chemical industries. The research will not only impact on practical mixer
design, but will also develop important results in the application of topology
to the the field of chaotic dynamical systems. This project will also prov ....Topological Optimisation of Fluid Mixing. The proposed research is aimed at improving the efficiency of fluid mixers,
which in the long term has potential to reduce vastly the economic and
environmental costs associated with large-scale mixing processes in Australian
chemical industries. The research will not only impact on practical mixer
design, but will also develop important results in the application of topology
to the the field of chaotic dynamical systems. This project will also provide a
graduate student and post-doctoral researcher with training to pursue a career
in fluid dynamics or general applied mathematics research.
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The design and development of a novel high power-to-weight actuator. Powerful and compact actuators are becoming increasingly in demand due to the sophistication in a range of uses varying from aerospace to automotive accessories. The aim of this project is to develop an actuator with high performance and power-to-weight ratio, suitable for use in cutting-edge applications. In the first instance, the focus will be on developing an automotive mirror actuator in close collaboration with the indust ....The design and development of a novel high power-to-weight actuator. Powerful and compact actuators are becoming increasingly in demand due to the sophistication in a range of uses varying from aerospace to automotive accessories. The aim of this project is to develop an actuator with high performance and power-to-weight ratio, suitable for use in cutting-edge applications. In the first instance, the focus will be on developing an automotive mirror actuator in close collaboration with the industrial partner, but the generic research outcomes will be applicable to development of actuators for other purposes. The new generation actuators will contribute to Australian manufacturing exports to become internationally competitive.Read moreRead less