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The study of wear debris using advanced technologies. A large portion of the operating cost of machinery is associated with wear due to the interaction between moving surfaces, which generates wear particles as by-products. The wear particles thus carry information regarding the wearing process, and can be used to assess the machine's condition and further facilitate failure prediction and minimise maintenance. This project will explore the mechanisms and possible influence of corrosion on the w ....The study of wear debris using advanced technologies. A large portion of the operating cost of machinery is associated with wear due to the interaction between moving surfaces, which generates wear particles as by-products. The wear particles thus carry information regarding the wearing process, and can be used to assess the machine's condition and further facilitate failure prediction and minimise maintenance. This project will explore the mechanisms and possible influence of corrosion on the wearing process. A new methodology will be developed to quantify the wearing process. This research will significantly advance our understanding with respect to wear and provide innovative means for identifying wear mechanisms/phases.Read moreRead less
CNTs-modified polymer composites for tribological applications. The growth of the Australian economy relies on continuous improvements in all sectors of production, manufacturing, operation and management where tribology is playing a significant role. System failure relevant to wear and friction over years and its impact on the Australian economy have continued to be a challenge for the community in the new century. The project is at the forefront of materials research, and the outcomes will pro ....CNTs-modified polymer composites for tribological applications. The growth of the Australian economy relies on continuous improvements in all sectors of production, manufacturing, operation and management where tribology is playing a significant role. System failure relevant to wear and friction over years and its impact on the Australian economy have continued to be a challenge for the community in the new century. The project is at the forefront of materials research, and the outcomes will provide (1) novel technical ways to optimise tribological performance of industrial contacting components, and (2) development of new wear resistant materials. The project will give Australia a competitive edge in the advances of tribology and nanotechnologyRead 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
Development of a New Generation Low Rolling Resistance Conveyor Belt. Belt conveying systems are employed extensively to transport bulk materials within Australia's mining and mineral processing industries. The energy consumption of belt conveyors are significant and dominated by the indentation rolling resistance of the idler rolls into the bottom cover of the belt. This project will develop technology to design more energy efficient conveyors by employing new laminated low energy loss belt cov ....Development of a New Generation Low Rolling Resistance Conveyor Belt. Belt conveying systems are employed extensively to transport bulk materials within Australia's mining and mineral processing industries. The energy consumption of belt conveyors are significant and dominated by the indentation rolling resistance of the idler rolls into the bottom cover of the belt. This project will develop technology to design more energy efficient conveyors by employing new laminated low energy loss belt covers. With Australian mineral exports exceeding $100 billion, coupled with the considerable transportation distances often necessary in Australian mining operations, the outcomes of this research will result in significant energy savings and economic benefits to these vital industries.Read moreRead less
Modelling and Optimisation of Belt Conveyor Systems. Belt conveyors are the arteries of Australia's heavy industries. Their efficiency and cost are critical to the productivity of our major export markets. A current trend in this area is the introduction of high-speed and long distance conveying. This has placed tremendous pressure on the current design standards which are in drastic need of re-evaluation. This project will address these deficiencies and build a strong foundation for future conv ....Modelling and Optimisation of Belt Conveyor Systems. Belt conveyors are the arteries of Australia's heavy industries. Their efficiency and cost are critical to the productivity of our major export markets. A current trend in this area is the introduction of high-speed and long distance conveying. This has placed tremendous pressure on the current design standards which are in drastic need of re-evaluation. This project will address these deficiencies and build a strong foundation for future conveyor design. This will be achieved by developing rigorous mechanical models for conveyor mechanics and the application of state-of-the-art optimisation methods based on Darwinian natural selection. This will lead to significant improvements in the efficiency and running costs of belt conveyor systems.Read moreRead less
Passive Control of Dust Emissions from Belt Conveyor Systems. Belt conveyor systems are employed extensively to transport bulk materials in a great many industries, particularly those associated with mining and mineral processing. Belt conveyor installations are becoming longer and belt speeds significantly faster, resulting in increased dust emissions. An estimated 16 billion litres of water per annum is used by the Australian Black Coal Industry alone on dust suppression. This project will dev ....Passive Control of Dust Emissions from Belt Conveyor Systems. Belt conveyor systems are employed extensively to transport bulk materials in a great many industries, particularly those associated with mining and mineral processing. Belt conveyor installations are becoming longer and belt speeds significantly faster, resulting in increased dust emissions. An estimated 16 billion litres of water per annum is used by the Australian Black Coal Industry alone on dust suppression. This project will develop passive dust control technology, requiring no external energy or suppressants. This will be achieved through the development of numerical methods verified by rigorous experimental work. This will lead to significant cost savings, improved employee health and safety and reduced environmental impact.Read moreRead less
Analytical, Numerical and Testing Procedures for Improved Design and Performance of Bulk Solids Systems. Mining and minerals production is Australia's most important export industry. Despite the global financial crisis, the Australian Bureau of Agriculture and Resources Economics (Australian Commodities, December Quarter 2008) has forecast that earnings from Australia's energy and minerals exports will increase by 37% during 2008-09 to A$160 billion. Bulk materials handling operations constitute ....Analytical, Numerical and Testing Procedures for Improved Design and Performance of Bulk Solids Systems. Mining and minerals production is Australia's most important export industry. Despite the global financial crisis, the Australian Bureau of Agriculture and Resources Economics (Australian Commodities, December Quarter 2008) has forecast that earnings from Australia's energy and minerals exports will increase by 37% during 2008-09 to A$160 billion. Bulk materials handling operations constitute a major component of the minerals production and transportation costs. Through the research conducted in this project, greater efficiencies with reduced operating costs will be achieved while, at the same time, meeting the stringent environmental controls in accordance with the National priority goal of 'An Environmentally Sustainable Australia'.Read moreRead less
Artificial intelligent system for integrated wear debris analysis and vibration analysis in machine condition monitoring. Vibration and wear debris analyses are the two main condition monitoring techniques for machinery maintenance and fault diagnosis. However, they can diagnose less than 50% of faults. A series of experimental and theoretical studies on the correlation of the two techniques will be conducted. This project will integrate advanced technologies including 3D microscopy, neural netw ....Artificial intelligent system for integrated wear debris analysis and vibration analysis in machine condition monitoring. Vibration and wear debris analyses are the two main condition monitoring techniques for machinery maintenance and fault diagnosis. However, they can diagnose less than 50% of faults. A series of experimental and theoretical studies on the correlation of the two techniques will be conducted. This project will integrate advanced technologies including 3D microscopy, neural networks and expert systems to develop an artificial intelligent system based on the dependent and independent roles of the two condition monitoring techniques. Successful outcomes will result in an improved maintenance program and reduction in human involvement, and will provide significant economic benefit to engineering industries.Read moreRead less
A Segmented Interior Permanent Magnet Synchronous Motor for Wide Field Weakening Range and its Sensorless Control using Improved Flux Estimators. Australia has the world's second largest reserve (after China) of high energy-density permanent magnet (neodymium-iron-boron) material for the IPM motor. The present limitation of the machine to be driven sensorless over a wide speed range with field weakening is believed to be holding back its widespread use in applications other than servo-type which ....A Segmented Interior Permanent Magnet Synchronous Motor for Wide Field Weakening Range and its Sensorless Control using Improved Flux Estimators. Australia has the world's second largest reserve (after China) of high energy-density permanent magnet (neodymium-iron-boron) material for the IPM motor. The present limitation of the machine to be driven sensorless over a wide speed range with field weakening is believed to be holding back its widespread use in applications other than servo-type which requires high-resolution mechanical sensors. Extension of the motor speed range by a combination of magnetic system design (for large field weakening range), and sensorless position and flux estimation with sufficient accuracy for fast dynamic control should lead to large scale adoption of this motor, and hence to significant improvement in energy efficiency and market share for Australia.Read moreRead less
Improvements of Direct Torque Controllers for the Interior Permanent Magnet Synchronous Motor. The Direct Torque Control (DTC) strategy has recently been applied successfully to the interior permanent magnet (IPM) motor which offers the highest torque/volume and efficiency of all known machines. Exploitation of the recently developed Neodynium-Iron-Boron material, of which Australia is the world's second largest producer, in the IPM motor and of new sensorless control strategies such as the DTC ....Improvements of Direct Torque Controllers for the Interior Permanent Magnet Synchronous Motor. The Direct Torque Control (DTC) strategy has recently been applied successfully to the interior permanent magnet (IPM) motor which offers the highest torque/volume and efficiency of all known machines. Exploitation of the recently developed Neodynium-Iron-Boron material, of which Australia is the world's second largest producer, in the IPM motor and of new sensorless control strategies such as the DTC controller, promises to open vast application potentials, such as in the upcoming hybrid and totally electric automobiles, for these motors. The new DTC controller developed at UNSW shows high promise for delivering a high-performance, sensorless IPM motor drive. This project aims to investigate, and overcome, the remaining problems of this technique.Read moreRead less