Elliptical nozzles: the shape of silence? This project aims to leverage the aeroacoustic properties of elliptical nozzle geometries to significantly reduce installed jet noise. This project expects to generate new knowledge regarding methods to reduce installed jet noise, a serious problem for the aerospace industry. Regulatory constraints inhibit the implementation of efficiency-increasing configurations but still fail to eliminate public health impacts. Expected outcomes include a set of tools ....Elliptical nozzles: the shape of silence? This project aims to leverage the aeroacoustic properties of elliptical nozzle geometries to significantly reduce installed jet noise. This project expects to generate new knowledge regarding methods to reduce installed jet noise, a serious problem for the aerospace industry. Regulatory constraints inhibit the implementation of efficiency-increasing configurations but still fail to eliminate public health impacts. Expected outcomes include a set of tools for optimizing nozzle designs capable of significantly reducing installed jet noise. This will provide significant benefits, as jet noise is a serious health issue for the Australian public. This project represents an opportunity to reduce its impact while improving fuel efficiency.Read moreRead less
Vibration-based health monitoring of aero-engine bearings . This project will develop new vibration-based techniques to greatly improve the detection and diagnosis of faults in aero engine bearings from in-flight measurements. To achieve this goal, advances will be made on source separation algorithms to extract the weak bearing signals, and signal processing techniques to extract features for diagnosing bearing fault severity and lubrication conditions, under a wide range of operating condition ....Vibration-based health monitoring of aero-engine bearings . This project will develop new vibration-based techniques to greatly improve the detection and diagnosis of faults in aero engine bearings from in-flight measurements. To achieve this goal, advances will be made on source separation algorithms to extract the weak bearing signals, and signal processing techniques to extract features for diagnosing bearing fault severity and lubrication conditions, under a wide range of operating conditions. A bearing degradation model will estimate the remaining useful life. Since rolling element bearings are among the most critical components in most machines, the results of this research will also provide massive benefits in other sectors such as mining, transportation, energy production and manufacturing.Read moreRead less
Fluid-thermal-structural interactions on high-speed aerospace vehicles. Sixteen years after the retirement of Concorde, high-speed commercial flight is once again on the rise with the development of new supersonic business jets and small airliners as well as hypersonic transport and reusable space launch systems. Robust and efficient designs for these light-weight vehicles must address the problem of aerodynamic heating and its effect on structural performance and lifing. This project will desig ....Fluid-thermal-structural interactions on high-speed aerospace vehicles. Sixteen years after the retirement of Concorde, high-speed commercial flight is once again on the rise with the development of new supersonic business jets and small airliners as well as hypersonic transport and reusable space launch systems. Robust and efficient designs for these light-weight vehicles must address the problem of aerodynamic heating and its effect on structural performance and lifing. This project will design and perform first-of-kind experiments that reproduce the complex fluid-thermal-structural interactions representative of those experienced by these aircraft and rockets. We will then use these measurements to assess, validate and improve the current state-of-the-art of simulation and modelling approaches for design.Read moreRead less
Mid-Career Industry Fellowships - Grant ID: IM230100644
Funder
Australian Research Council
Funding Amount
$889,472.00
Summary
Triple hybrid fuel-cell-based propulsion for long-range eVTOL operations. AMSL Aero's Vertiia is an Australian-developed electric Vertical Take Off and Landing (eVTOL) aircraft that will provide rapid response air ambulance and low-cost passenger transport for rural Australia. This project will optimise a fuel cell/battery/ultracapacitor triple hybrid system for Vertiia by combining dynamic energy source models, hardware-in-the-loop simulations, aero-propulsive flight mechanics models, and accel ....Triple hybrid fuel-cell-based propulsion for long-range eVTOL operations. AMSL Aero's Vertiia is an Australian-developed electric Vertical Take Off and Landing (eVTOL) aircraft that will provide rapid response air ambulance and low-cost passenger transport for rural Australia. This project will optimise a fuel cell/battery/ultracapacitor triple hybrid system for Vertiia by combining dynamic energy source models, hardware-in-the-loop simulations, aero-propulsive flight mechanics models, and accelerated degradation testing. The triple hybrid will extend the life of both batteries and fuel cells for eVTOL aircraft. It will allow AMSL to fast-track the improved durability needed for cost-competitive long-range eVTOL operations, giving them an up-front and industry-leading experience on hybrid systems for eVTOLs.Read moreRead less
Energy Source Durability for Electric Vertical TakeOff and Landing Aircraft. This project aims to address energy source durability for electric Vertical Take Off and Landing (eVTOL) aircraft by optimising a fuel cell/battery/ultracapacitor triple hybrid energy system. The project expects to generate new knowledge in the area of energy source durability using interdisciplinary approaches that combine energy source degradation models, hardware-in-the-loop simulations, aero-propulsive flight mechan ....Energy Source Durability for Electric Vertical TakeOff and Landing Aircraft. This project aims to address energy source durability for electric Vertical Take Off and Landing (eVTOL) aircraft by optimising a fuel cell/battery/ultracapacitor triple hybrid energy system. The project expects to generate new knowledge in the area of energy source durability using interdisciplinary approaches that combine energy source degradation models, hardware-in-the-loop simulations, aero-propulsive flight mechanics models, and accelerated degradation testing. This should provide significant benefits, allowing to fast-track the improved longevity needed for cost-competitive long-range rapid response air ambulance eVTOL operations.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100933
Funder
Australian Research Council
Funding Amount
$458,183.00
Summary
Noise-reduction mechanisms in jet engines: chevrons are the answer. This project aims to develop new models to study the influence of chevrons on the exhaust of aircraft engines, which is one of the strongest sound sources during take-off. As constant exposure to high-amplitude noise in areas close to airports leads to a myriad of health problems, new strategies have been sought to mitigate this noise component. Chevrons may modify the dynamics of the noise-generating coherent structures, but mo ....Noise-reduction mechanisms in jet engines: chevrons are the answer. This project aims to develop new models to study the influence of chevrons on the exhaust of aircraft engines, which is one of the strongest sound sources during take-off. As constant exposure to high-amplitude noise in areas close to airports leads to a myriad of health problems, new strategies have been sought to mitigate this noise component. Chevrons may modify the dynamics of the noise-generating coherent structures, but most of their parameters are chosen by trial and error, and the mechanism that maximises noise reduction is not clear. By understanding the underlying noise-reduction mechanisms, this project will facilitate the optimal design of quieter exhaust nozzles, ameliorating the effect of aircraft noise on the local community.Read moreRead less
Novel power system architecture and control for 'More Electric Aircraft'. This project aims to propose a new conceptual design of an internal aircraft electrical system and its control, which minimises the issues of traditional power systems and takes advantage of contemporary control and technology advances to minimise weight/volume and maximise reliability. The project will target a specific design, which includes consideration of novel power electronic topologies, to achieve these goals. The ....Novel power system architecture and control for 'More Electric Aircraft'. This project aims to propose a new conceptual design of an internal aircraft electrical system and its control, which minimises the issues of traditional power systems and takes advantage of contemporary control and technology advances to minimise weight/volume and maximise reliability. The project will target a specific design, which includes consideration of novel power electronic topologies, to achieve these goals. The results will be validated through simulation, experiments and field testing. It is anticipated that the ideas developed within this project will have a major impact on More Electric Aircraft technology, as well as on general interconnected energy resource systems, such as DC and AC microgrids.Read moreRead less
Mid-Career Industry Fellowships - Grant ID: IM230100702
Funder
Australian Research Council
Funding Amount
$859,472.00
Summary
Optimising sleep, alertness and safety in shift work industries. This project aims to address the impaired alertness, and high risk of workplace errors and accidents that are associated with sleep loss and circadian misalignment during shift work. The project will deliver an innovative industry-driven digital technology to provide automated, customised sleep management strategies to shift workers, and will develop a framework for effective wide-scale deployment of the technology within Australia ....Optimising sleep, alertness and safety in shift work industries. This project aims to address the impaired alertness, and high risk of workplace errors and accidents that are associated with sleep loss and circadian misalignment during shift work. The project will deliver an innovative industry-driven digital technology to provide automated, customised sleep management strategies to shift workers, and will develop a framework for effective wide-scale deployment of the technology within Australian shift working organisations. The project will close the gap in resources currently available to support sleep in shift workers and will reduce the significant burdens of shift work for alertness, productivity and safety.Read moreRead less