Understanding and modifying vortex structures in wind turbine wakes. At a fundamental research level, Australia's active participation in this area of national priority and research strength will be advanced through our published research, which will increase our understanding of wind turbine wakes and their effects in wind farms. This understanding will then be used to produce improved methods of predicting wind turbine performance. Such methods are needed by wind energy designers to produce b ....Understanding and modifying vortex structures in wind turbine wakes. At a fundamental research level, Australia's active participation in this area of national priority and research strength will be advanced through our published research, which will increase our understanding of wind turbine wakes and their effects in wind farms. This understanding will then be used to produce improved methods of predicting wind turbine performance. Such methods are needed by wind energy designers to produce better wind farms. It will also be used to recommend how to improve the aerodynamic design of turbine components, such as the blades and hub. Numerical tools will be developed for industry use, and training will be provided to personnel, thereby increasing the capabilities of Australia's growing wind energy industry.Read moreRead less
Quantifying the impact of wind farm noise on rural communities. This project is directed at quantifying the level and character of wind farm noise experienced by rural communities, to gain an understanding of the likelihood of the emitted sound causing the medical symptoms experienced by these communities. The outcome will be an accurate prediction model that covers infrasound, the audio range and modulation.
Resolving the mechanics of wind turbine noise production. This project will investigate how wind turbines produce noise. It will do this by developing the most sophisticated wind turbine noise experiment in the world, which will allow the construction of better designed wind farms, better public policy and new noise control technologies.
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
Improved design and operational efficiency of small wind turbines in unsteady flows. The purpose of this research is to improve the design and performance of small wind turbines for energy generation. The expected outcomes are novel control strategies and mechanical designs that account for unsteady aerodynamics and its effects on structural loads and power quality. Recommendations to improve current design standards will be made.
Airfoil Noise Control in Complex Turbulence. This project aims to understand how to control noise created by the interaction of airfoils with complex, real-world turbulence. This project is significant because it will develop novel serrated and porous leading edges tailored for complex turbulence for the first time. Using innovative experimental and theoretical techniques, the project will dramatically advance the science of aeroacoustics. The expected outcomes of the project will be substantial ....Airfoil Noise Control in Complex Turbulence. This project aims to understand how to control noise created by the interaction of airfoils with complex, real-world turbulence. This project is significant because it will develop novel serrated and porous leading edges tailored for complex turbulence for the first time. Using innovative experimental and theoretical techniques, the project will dramatically advance the science of aeroacoustics. The expected outcomes of the project will be substantial reductions in noise from aircraft, wind turbines, submarines and drones. This will provide significant benefits such as a reduction in environmental noise pollution, better public health and submarines with increased stealth.Read moreRead less
Understanding and predicting airfoil noise in real-world turbulence. This project aims to understand and predict the noise produced by turbulence interacting with an airfoil to advance the design of aeroengines, wind turbines, marine vessels, cooling fans and drones. A novel anechoic wind tunnel experiment is proposed to link complex turbulent in-flow with the behaviour of the flow as it interacts with the airfoil and the noise-producing physics. The intended outcomes of this project are new sem ....Understanding and predicting airfoil noise in real-world turbulence. This project aims to understand and predict the noise produced by turbulence interacting with an airfoil to advance the design of aeroengines, wind turbines, marine vessels, cooling fans and drones. A novel anechoic wind tunnel experiment is proposed to link complex turbulent in-flow with the behaviour of the flow as it interacts with the airfoil and the noise-producing physics. The intended outcomes of this project are new semi-analytical noise prediction models and scientific knowledge that can be harnessed for practical noise control. Anticipated benefits include quiet aerospace, naval and renewable energy technologies, reduced environmental noise pollution and better quality of life.Read moreRead less
A new role for vibration analysis in gear wear modelling and prediction. This project aims to improve prediction of the remaining useful life of gears. Gears are widely used in industry and transport. This project aims to integrate the two main methods of gear condition monitoring, vibration and oil analysis, and perform model-based wear prediction with the tribology and dynamic models continually updated on the basis of measured wear debris and vibration. New signal processing tools should allo ....A new role for vibration analysis in gear wear modelling and prediction. This project aims to improve prediction of the remaining useful life of gears. Gears are widely used in industry and transport. This project aims to integrate the two main methods of gear condition monitoring, vibration and oil analysis, and perform model-based wear prediction with the tribology and dynamic models continually updated on the basis of measured wear debris and vibration. New signal processing tools should allow estimation of relatively weak friction forces, previously neglected, as an important prognostic tool. This would allow detailed root cause analysis and prediction of remaining useful life. Improvements in gear prognosis would have safety and economic benefits by eliminating unforeseen catastrophic failures and optimising maintenance schedules.Read moreRead less
Cepstral methods of operational modal analysis to separate multiple sources. This project aims to develop new methods of operational modal analysis in situations with multiple complex sources, such as rotating machines. The project will obtain scaled mode shapes as well as separated scaled sources. One of the main applications will be to improve the prognostics of machines by having separated scaled estimates of the forcing functions to make it easier to find fault parameters which trend monoton ....Cepstral methods of operational modal analysis to separate multiple sources. This project aims to develop new methods of operational modal analysis in situations with multiple complex sources, such as rotating machines. The project will obtain scaled mode shapes as well as separated scaled sources. One of the main applications will be to improve the prognostics of machines by having separated scaled estimates of the forcing functions to make it easier to find fault parameters which trend monotonically towards failure, and thus greatly improve the estimates of remaining useful equipment life. An additional benefit of the application will be the ability to predict overall noise radiation from a machine or object if both the sources and modal models are scaled.Read moreRead less