Prediction and control of fluid-structure interactions. Fluid-flows create a pressure that can deform the surface of a structure or cause it to vibrate; an extreme example is the fluttering of a flag. Flow-induced vibration of the external panels of vehicles causes damage, noise and can adversely affect performance. This project will develop a wholly new approach for the analysis of these interactions. The versatility and completeness of the approach permits a step-change in the design of panels ....Prediction and control of fluid-structure interactions. Fluid-flows create a pressure that can deform the surface of a structure or cause it to vibrate; an extreme example is the fluttering of a flag. Flow-induced vibration of the external panels of vehicles causes damage, noise and can adversely affect performance. This project will develop a wholly new approach for the analysis of these interactions. The versatility and completeness of the approach permits a step-change in the design of panels, reducing material and manufacturing costs without compromise to safety and performance - an immense benefit for the myriad engineered products or structures that feature flow over a deformable surface. Read moreRead less
Taming turbulence: Hydrodynamic stability and flow-structure interaction using grid-free computation. Turbulence is characterized as seemingly disordered fluctuations that impede the progress of an object through a fluid by creating increased frictional or drag forces. Using a new type of fluid-flow simulation, this project will generate advanced understanding of turbulence in the flow over the surface of a vehicle, be it a ship, car, aircraft or within a pipe, with the technological objective o ....Taming turbulence: Hydrodynamic stability and flow-structure interaction using grid-free computation. Turbulence is characterized as seemingly disordered fluctuations that impede the progress of an object through a fluid by creating increased frictional or drag forces. Using a new type of fluid-flow simulation, this project will generate advanced understanding of turbulence in the flow over the surface of a vehicle, be it a ship, car, aircraft or within a pipe, with the technological objective of reducing drag by adhering a compliant skin to the surface. While the correct choice of compliance relies upon understanding very complex flow-structure dynamics, the resulting technology is simple, robust and has low capital and maintenance costs. Clearly, drag reduction reduces fuel costs and lower fuel consumption is environmentally beneficial. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100201
Funder
Australian Research Council
Funding Amount
$530,000.00
Summary
A major upgrade to the Australia Telescope Compact Array. This project aims to upgrade the $150m CSIRO Australia Telescope Compact Array ("the telescope"), by replacing the signal processing electronics and doubling the bandwidth. This will significantly enhance the performance of the telescope, enabling more ambitious science by the 450 researchers and students who use it each year. For example, it will enable the telescope to study radio counterparts to Gravitational Wave sources, and it will ....A major upgrade to the Australia Telescope Compact Array. This project aims to upgrade the $150m CSIRO Australia Telescope Compact Array ("the telescope"), by replacing the signal processing electronics and doubling the bandwidth. This will significantly enhance the performance of the telescope, enabling more ambitious science by the 450 researchers and students who use it each year. For example, it will enable the telescope to study radio counterparts to Gravitational Wave sources, and it will enable it to make detailed observations of initial discoveries made with the Australian Square Kilometre Array Pathfinder and other Australian telescopes. In short, it will enable Australian researchers to do more ambitious research, and make more discoveries, across broad areas of astrophysics.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE200100096
Funder
Australian Research Council
Funding Amount
$1,150,000.00
Summary
A next-generation receiver for Radio Astronomy. This project will provide a next-generation radio astronomy receiver to be used on the Parkes radio telescope. This facility will provide a major increase in performance, particularly in sensitivity and survey speed. The science goals are to better understand the ionized and neutral components of the cosmic web, and their evolution, through observations of Fast Radio Bursts and neutral hydrogen. Advances in the understanding of pulsars, molecules, ....A next-generation receiver for Radio Astronomy. This project will provide a next-generation radio astronomy receiver to be used on the Parkes radio telescope. This facility will provide a major increase in performance, particularly in sensitivity and survey speed. The science goals are to better understand the ionized and neutral components of the cosmic web, and their evolution, through observations of Fast Radio Bursts and neutral hydrogen. Advances in the understanding of pulsars, molecules, radio galaxies and cosmic rays will also be achieved with this facility. The technology is based on cryogenic cooling of a large phased array feed. This receiver is a major advance over existing receivers on the Parkes and Australian SKA Pathfinder (ASKAP) telescopes.Read moreRead less
Assessing the determinants and consequences of safety climate in the maritime industry. This project will examine the predictors and outcomes of safety climate in the Australian maritime industry. Findings from this project will be used to improve safety policies, regulations and practices that aim to minimise the number of accidents and incidents in Australian waters.
DEVELOPMENT OF NEW NONLINEAR CONTROLLERS FOR TRAJECTORY TRACKING AND PATH-FOLLOWING OF UNDERACTUATED OCEAN VEHICLES. Trajectory tracking control and path-following of underactuated ocean vehicles are not only of theoretical challenging but also important practice. This project is firstly to develop methodologies to design full-state feedback controllers to force the underactuated ocean vehicles including surface ships and underwater vehicles with off-diagonal terms in their system matrices to tr ....DEVELOPMENT OF NEW NONLINEAR CONTROLLERS FOR TRAJECTORY TRACKING AND PATH-FOLLOWING OF UNDERACTUATED OCEAN VEHICLES. Trajectory tracking control and path-following of underactuated ocean vehicles are not only of theoretical challenging but also important practice. This project is firstly to develop methodologies to design full-state feedback controllers to force the underactuated ocean vehicles including surface ships and underwater vehicles with off-diagonal terms in their system matrices to track reference trajectories generated by virtual vehicles, and to follow a predefined path with a desired forward speed. Secondly, we develop methods to design observers to estimate the unmeasured states (velocities) of the vehicles and incorporate with the full-state feedback controllers to have output-feedback observer-based controllers. Lastly, the proposed control design methods are extended to a certain class of underactuated mechanical systems.Read moreRead less