Australasian Joint Research Center for Building Information Modelling

Australia

Australasian Joint Research Center for Building Information Modelling

Australia
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Yan D.,China Institute of Water Resources and Hydropower Research | Zhuang K.,China Institute of Water Resources and Hydropower Research | Xu B.,China Institute of Water Resources and Hydropower Research | Chen D.,China Institute of Water Resources and Hydropower Research | And 4 more authors.
Journal of Energy Engineering | Year: 2017

Rapid development of the hydroelectric power industry has raised concerns about the stability of hydroturbine units among the scientific and engineering communities. Most existing approaches that model hydropower stations focus on the design of the hydroturbine governing system or on analysis of the complex forces acting on hydraulic turbine generators. These models fail to comprehensively study the impact of such forces on the stability of hydropower stations. This study provides a novel model for analyzing the stability of generators that are subjected to increasing excitation currents. The results highlight a significant difference between the dynamic response of the shafting system and governing system for values of the excitation current lower than 880 A. Conversely, the fluctuations affecting the two subsystems appear to be consistent when the excitation current exceeds 880 A. Finally, the response of the whole system appears to be subject to random vibrations when the excitation current is 1,380 A. These findings offer a useful insight into the dynamic response of hydropower systems and their safe and stable operation. © 2017 American Society of Civil Engineers.


Wang X.,Curtin University Australia | Wang X.,Kyung Hee University | Wang X.,Australasian Joint Research Center for Building Information Modelling | Kim M.J.,Kyung Hee University | And 2 more authors.
Automation in Construction | Year: 2013

Augmented Reality (AR) has the potential to change how people interact and experience their surrounding environment. During the last decade a considerable amount of research has been undertaken within the built environment. With this in mind, this paper aims to provide a state-of-the-art review of mainstream studies undertaken between 2005 and 2011 within the normative literature. We found that a total of 120 articles were published in the normative built environment literature within this period. Articles were classified according to their concept and theory, implementation, evaluation (effectiveness and usability) and industrial adoption. The classification of the literature has enabled gaps in the AR literature to be identified and future research directions to be proposed. © 2012 Elsevier B.V. All rights reserved.


Zhou Y.,Huazhong University of Science and Technology | Zhou Y.,Australasian Joint Research Center for Building Information Modelling | Ding L.,Huazhong University of Science and Technology | Ding L.,Australasian Joint Research Center for Building Information Modelling | And 6 more authors.
Automation in Construction | Year: 2015

Four-dimensional (4D) modeling has gained much potential in improving construction process design and planning. The integration of three-dimensional model with scheduling information has been shown to enable the effective detection of construction process design and planning flaws. However, the research work in 4D has been predominantly focused on the building construction industry. 4D has been rarely explored in the oil and gas industry, particularly Liquefied Natural Gas (LNG) plant construction. It is very difficult to conceive the scale and complexity of mega-projects in the LNG sector. This paper presents a study with the goal of investigating the feasibility and benefits of 4D in supporting LNG construction projects. 4D models were developed at both the activity level and the operations level, and geometry-based virtual construction was implemented to rehearse the construction process for the purpose of identifying potential risks and safety issues. These models were used for synergistic planning for the whole project and for resource scheduling. It has been demonstrated in this paper, mega LNG construction projects can benefit from 4D in terms of improved process planning and control. © 2014 Elsevier B.V. All rights reserved.

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