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Full-Text Articles in Social and Behavioral Sciences
Investigations Into The Identification And Control Of Outburst In Australian Underground Coal Mines, Dennis J. Black
Investigations Into The Identification And Control Of Outburst In Australian Underground Coal Mines, Dennis J. Black
Faculty of Engineering and Information Sciences - Papers: Part B
Australian coal mines currently use gas content to assess outburst risk. The gas content threshold values for each mine are indirectly determined from measurement of gas volume liberated from 150 g coal samples during Q3 residual gas content testing. It has been more than twenty (20) years since this method, known as DRI900, was presented to the Australian coal industry, and in that time there have been significant changes in mining conditions and the outburst threshold limits used at the benchmark Bulli seam mines.Current coal mining legislation in both Queensland [7] and New South Wales [6] provide little guidance in …
A Novel Fuzzy Sliding-Mode Control For Discrete-Time Uncertain System, T H. Yan, B Wu, B He, Weihua Li, R B. Wang
A Novel Fuzzy Sliding-Mode Control For Discrete-Time Uncertain System, T H. Yan, B Wu, B He, Weihua Li, R B. Wang
Faculty of Engineering and Information Sciences - Papers: Part B
This paper considers the sliding-mode control problem for discrete-time uncertain systems. It begins by presenting a discrete variable speed reaching law and a discrete-time sliding-mode controller (DSMC) designed using the proposed reaching law, followed by an analysis of their stability and dynamic performance. A sliding-mode controller with simple fuzzy logic is then proposed to further strengthen the dynamic performance of the proposed sliding-mode controller. Finally, the presented DSMC and the DSMC with fuzzy control for adjusting the parameters in this paper are compared with one of the previous proposed classic DSMC systems. The results of this simulation show that the …