Development of Models for the Three-Dimensional Analysis of Jack-Up Structures. Mobile jack-up structures perform most of the world's offshore drilling in water depths up to 120m, but have a higher accident rate then fixed installations. To improve their safety, this research will develop the framework for the integrated assessment of jack-up behaviour in three dimensions. To achieve this, an advanced plasticity model that describes cyclic behaviour of the circular shallow foundations of jack-up ....Development of Models for the Three-Dimensional Analysis of Jack-Up Structures. Mobile jack-up structures perform most of the world's offshore drilling in water depths up to 120m, but have a higher accident rate then fixed installations. To improve their safety, this research will develop the framework for the integrated assessment of jack-up behaviour in three dimensions. To achieve this, an advanced plasticity model that describes cyclic behaviour of the circular shallow foundations of jack-ups in both clay and sand will be developed and incorporated with random wave loading of seas in a dynamic structural analysis program. The anticipated advantages of the modelling techniques will be assessed against existing two dimensional industry guidelines and monitored field data. Read moreRead less
Investigation of potential spudcan punch through failure. The safe and economic use of mobile jack-up structures is critical to the prosperous development of Australia's significant offshore oil and gas industry. However, their use is hindered by potential 'punch-through' failure during installation, when their large conical footings can unexpectedly and uncontrollably push a locally strong zone of soil into underlying softer material. To improve their safety, this research will investigate a po ....Investigation of potential spudcan punch through failure. The safe and economic use of mobile jack-up structures is critical to the prosperous development of Australia's significant offshore oil and gas industry. However, their use is hindered by potential 'punch-through' failure during installation, when their large conical footings can unexpectedly and uncontrollably push a locally strong zone of soil into underlying softer material. To improve their safety, this research will investigate a potential new site-investigation procedure and develop an appropriate calculation method for predicting failures for sites where sand overlies clay. Results will be based on a series of innovative physical and numerical experiments, and assessed against field data and existing industry standards.Read moreRead less
Hydroelasticity of compliant offshore structures. Australia's rich offshore oil and gas reserves are awaiting extensive deepwater extraction. However, there is still a lack of in-depth knowledge in the dynamic behavior of deepwater structures to ensure safe and cost-effective production. We hereby propose hydroelasticity theories and modelling techniques to investigate dynamic fluid-structure interaction problems for compliant offshore structures. We also propose innovative experiments to verify ....Hydroelasticity of compliant offshore structures. Australia's rich offshore oil and gas reserves are awaiting extensive deepwater extraction. However, there is still a lack of in-depth knowledge in the dynamic behavior of deepwater structures to ensure safe and cost-effective production. We hereby propose hydroelasticity theories and modelling techniques to investigate dynamic fluid-structure interaction problems for compliant offshore structures. We also propose innovative experiments to verify the theoretical work. One application is to configure a freestanding compliant tower to suit prospective deepwater oil and gas fields off North-West Australia. Expected outcomes include theoretical and experimental advances in deepwater offshore mechanics and practical computation tools for industry applications.Read moreRead less
Vulnerability mapping of hazards and economic loss assessment of offshore oil and gas platforms subject to accidental explosion and fires. In Australia, up to 100 offshore oil and gas wells per year are drilled, but fire and explosion are a risk. This project develops vulnerability maps of offshore platforms subjected to accidental explosions, so that economic loss, environmental and social impact can be effectively assessed based on these factors and mitigation measures can be introduced.
MODAL AND DIRECTIONAL CHARACTERISTICS OF SEASTATES AND THEIR IMPACT ON DYNAMICS OF MOORED OFFSHORE SYSTEMS. Under certain conditions a typical sea can becomes bimodal comprising of wind-driven seas and long period swells interacting from two directions. Using a nonlinear model, the occurrence and characteristics of bimodal and bi-directional seastates are quantified.
Low frequency oscillations of a moored offshore structure have profound design influence on the mooring system. A nonlinear res ....MODAL AND DIRECTIONAL CHARACTERISTICS OF SEASTATES AND THEIR IMPACT ON DYNAMICS OF MOORED OFFSHORE SYSTEMS. Under certain conditions a typical sea can becomes bimodal comprising of wind-driven seas and long period swells interacting from two directions. Using a nonlinear model, the occurrence and characteristics of bimodal and bi-directional seastates are quantified.
Low frequency oscillations of a moored offshore structure have profound design influence on the mooring system. A nonlinear response model for a floating vessel in bimodal and bi-directional seastates, will be developed using nonlinear dynamics techniques. The numerical models for the environment and the floating platform will be validated by experiments at the Ocean Basin in Canada.
The project adopts a holistic approach by considering the environment and the moored platform as a complex natural system. With excellent opportunities for technology transfer, the project also benefits from substantial in-kind contributions of the overseas PIs.
Read moreRead less
ACTIVE CONTROL OF SURFACE OCEAN SHIPS. This research is to design nonlinear robust adaptive control systems using active actuators (flaps, fins and rudders) for course keeping and path tracking of surface ocean ships, which are inherently nonlinear and with uncertainties. The outcome of the research will lead to the development of non-linear control strategies, which result in simple-to-implement and effective controllers. These controllers are robust to the environmental disturbances and uncert ....ACTIVE CONTROL OF SURFACE OCEAN SHIPS. This research is to design nonlinear robust adaptive control systems using active actuators (flaps, fins and rudders) for course keeping and path tracking of surface ocean ships, which are inherently nonlinear and with uncertainties. The outcome of the research will lead to the development of non-linear control strategies, which result in simple-to-implement and effective controllers. These controllers are robust to the environmental disturbances and uncertainties, adapt to unknown parameters of the ship and actuators. Only a few control gains are required to be tuned. The success of this project will significantly increase the international competiveness of Australian shipbuilding industry.Read moreRead less
Religion at the End of the World: Anglican Communities in Western Australia 1829-c.2000. As the project will study Anglicanism as an internal variety of forms it will benefit minority groups in understanding their 'agency' in shaping religious traditions. The project will also contribute to breaking down stereotypical generalities about religions and religious groups in Australia that result from approaching any religion as a monochrome and uniform phenomenon. The identification of the various f ....Religion at the End of the World: Anglican Communities in Western Australia 1829-c.2000. As the project will study Anglicanism as an internal variety of forms it will benefit minority groups in understanding their 'agency' in shaping religious traditions. The project will also contribute to breaking down stereotypical generalities about religions and religious groups in Australia that result from approaching any religion as a monochrome and uniform phenomenon. The identification of the various forms of Anglicanism in Western Australia and their own particular religious cultures will be of benefit in substantiating the part played by indigenous, rural, and regional communities in the history of Western Australian society through the agency of Anglicanism.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989831
Funder
Australian Research Council
Funding Amount
$205,000.00
Summary
The Australian Music Navigator: research infrastructure for discovering, accessing and analysing Australia's musical landscape. The aim of the Australian Music Navigator initiative is to enhance the research, analysis, discoverability and understanding of Australian art music practice through the development of an innovative online facility. In addition to enabling access to digital sound and score objects, the facility will allow for sophisticated explorations of the rich inter-relationships be ....The Australian Music Navigator: research infrastructure for discovering, accessing and analysing Australia's musical landscape. The aim of the Australian Music Navigator initiative is to enhance the research, analysis, discoverability and understanding of Australian art music practice through the development of an innovative online facility. In addition to enabling access to digital sound and score objects, the facility will allow for sophisticated explorations of the rich inter-relationships between creators, performs, works, manifestations, events, genres, venues, awards and research. This infrastructure will ensure the prominence and accessibility of Australian music as a subject for research, and thereby contribute to our collective ability to engage with and understand our musical heritage.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100216
Funder
Australian Research Council
Funding Amount
$345,000.00
Summary
Emotions, language and culture in Arnhem Land (Katherine region). This project aims to increase our understanding of emotional language and cultural practices about emotions among Indigenous Australian groups. Emotion is a fundamental human experience, yet different languages provide very different ways of talking about it. What are the consequences of this? Are these differences culturally constrained? Might differences in the grammar of a language influence the way its speakers express emotion ....Emotions, language and culture in Arnhem Land (Katherine region). This project aims to increase our understanding of emotional language and cultural practices about emotions among Indigenous Australian groups. Emotion is a fundamental human experience, yet different languages provide very different ways of talking about it. What are the consequences of this? Are these differences culturally constrained? Might differences in the grammar of a language influence the way its speakers express emotions, or even the way they experience emotions? This project seeks to describe and compare the way emotions are expressed in five Aboriginal languages of Arnhem Land. Four of these languages are endangered and the project will also provide the urgent documentation needed to preserve them.Read moreRead less
The online future of Science and Engineering education: The essential elements of laboratory-based learning for remote-access implementation. Laboratory classes are a critical part of science and engineering degree programs, but there has been little research into what actually takes place within them. Remote laboratories, in which students control equipment via the internet, are one potential solution for accommodating rising numbers of students, but the interfaces must be developed to effectiv ....The online future of Science and Engineering education: The essential elements of laboratory-based learning for remote-access implementation. Laboratory classes are a critical part of science and engineering degree programs, but there has been little research into what actually takes place within them. Remote laboratories, in which students control equipment via the internet, are one potential solution for accommodating rising numbers of students, but the interfaces must be developed to effectively support student learning. This project will investigate how students interact with equipment, each other, and with laboratory demonstrators in order to determine the crucial components of effective laboratory learning experiences. It will identify and characterise the interactions of students in laboratory classes, and develop mechanisms to support these interactions remotely.Read moreRead less