The mechanics of quiet airfoils. Airfoil trailing edge noise affects many technologies, from wind turbines to computer cooling fans and must be reduced to improve productivity, public health and the environment. This project aims to develop a new class of quiet airfoil design and an active trailing edge noise control system to help solve this important problem. This research will provide multiple, long terms benefits to Australia that include reduced greenhouse gas emissions, reduced airport no ....The mechanics of quiet airfoils. Airfoil trailing edge noise affects many technologies, from wind turbines to computer cooling fans and must be reduced to improve productivity, public health and the environment. This project aims to develop a new class of quiet airfoil design and an active trailing edge noise control system to help solve this important problem. This research will provide multiple, long terms benefits to Australia that include reduced greenhouse gas emissions, reduced airport noise, new high technology products for export, and improved public health.Read moreRead less
Development of an active noise control system for sleeper seats on large commercial aircraft. Possible avenues will be investigated to actively reduce aircraft cabin noise experienced by passengers in sleeper seats, using localised active noise control (ANC). Previous work has focused on headsets and upright seat headrests which represent a different problem to the partially enclosed sleeper seats considered here. Efficiency and robustness problems that affect existing ANC systems will be addres ....Development of an active noise control system for sleeper seats on large commercial aircraft. Possible avenues will be investigated to actively reduce aircraft cabin noise experienced by passengers in sleeper seats, using localised active noise control (ANC). Previous work has focused on headsets and upright seat headrests which represent a different problem to the partially enclosed sleeper seats considered here. Efficiency and robustness problems that affect existing ANC systems will be addressed. A prototype system will be produced for a business class sleeper seat in a wide body aircraft. A second outcome is the establishment of a robust integrated system design procedure that can be used to quickly develop ANC systems for future designs.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560673
Funder
Australian Research Council
Funding Amount
$377,178.00
Summary
Scanning 3D laser vibrometer for non-contact in-plane and out-of-plane vibration measurement. The requested 3D scanning laser vibrometer is intended for the characterisation of 3D vibration of small and large, simple and complex structures, for the purpose of understanding the vibratory behaviour as a precursor to optimising noise and vibration control strategies. It has application to small items for which the use of contact sensors is impossible or impractical, as well as large structures for ....Scanning 3D laser vibrometer for non-contact in-plane and out-of-plane vibration measurement. The requested 3D scanning laser vibrometer is intended for the characterisation of 3D vibration of small and large, simple and complex structures, for the purpose of understanding the vibratory behaviour as a precursor to optimising noise and vibration control strategies. It has application to small items for which the use of contact sensors is impossible or impractical, as well as large structures for which the vibration fields can be complex and a 3D scanning capability is essential. Examples include micro-positioning actuators, piezo-electric motors, live cell response, disk brakes, aircraft and vehicles. Outcomes include the enhancement of existing research projects, allowing a greater understanding of the noise and vibration phenomena.Read moreRead less
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
A Novel Reconfigurable Unlimited Spherical Motion Generator. The main contribution of this research lies in the National Research Priority of Frontier Technologies for Building and Transforming Australian Industries. The main outcome is a strategy to produce unlimited spherical motion with high precision. It is an innovative solution that is applicable to many cutting edge research and industry problems. Immediate application is expected to produce a faithful motion simulation, for flight, astr ....A Novel Reconfigurable Unlimited Spherical Motion Generator. The main contribution of this research lies in the National Research Priority of Frontier Technologies for Building and Transforming Australian Industries. The main outcome is a strategy to produce unlimited spherical motion with high precision. It is an innovative solution that is applicable to many cutting edge research and industry problems. Immediate application is expected to produce a faithful motion simulation, for flight, astronaut, and vehicle control training. It would potentially improve the quality of human resources and the quality of Australian industry, both civil and military. This project would also enhance the Australian competitive technological edge in developing advanced mechatronic systems.Read moreRead less
The Acoustic, Control and Aerodynamic Aspects of the Entecho Hoverpod. The development of small aerial vehicles, both manned and unmanned is a growing market in the aviation industry. This market sector has the potential to provide cheap, environmentally friendly transport solutions for the defence purposes, law enforcement agencies and emergency and recreational vehicles. This project serves to enhance Australia's position in this market by helping a local company develop its technology in a ....The Acoustic, Control and Aerodynamic Aspects of the Entecho Hoverpod. The development of small aerial vehicles, both manned and unmanned is a growing market in the aviation industry. This market sector has the potential to provide cheap, environmentally friendly transport solutions for the defence purposes, law enforcement agencies and emergency and recreational vehicles. This project serves to enhance Australia's position in this market by helping a local company develop its technology in a cost effective and timely manner. The progress made in the three research aspects will also advance areas of science and technology with practical applications other than aerial vehicles.Read moreRead less
Diagnostics and Prognostics of Turbine Engine Bearings. Rolls Royce are a leading supplier of engines world-wide, but in particular (with respect to this application) to airlines operating in and from Australia, including Qantas, as well as to the Australian armed forces. The methods to be developed will give greater security to the flying public, and to the Defence Forces, allowing them to carry out their role more reliably. Collaboration with Rolls Royce will add prestige to this Australian de ....Diagnostics and Prognostics of Turbine Engine Bearings. Rolls Royce are a leading supplier of engines world-wide, but in particular (with respect to this application) to airlines operating in and from Australia, including Qantas, as well as to the Australian armed forces. The methods to be developed will give greater security to the flying public, and to the Defence Forces, allowing them to carry out their role more reliably. Collaboration with Rolls Royce will add prestige to this Australian developed technology, and increase the likelihood of it (and related technology) being used in the Joint Strike Fighter.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