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Zhang, Wenqian (author), Dong, Wenhan (author), Lv, Maolong (author), Liu, Zongcheng (author), Zhou, Yang (author), Feng, Haoming (author)
This work proposes a nonsingular adaptive fixed-time switching control method for a class of strict-feedback nonlinear dynamics subject to full state constraints. The peculiarity of this design lies in overcoming the singularity issue that typically appears in the existing backstepping-based fixed-time control methods caused by the iterative...
journal article 2021
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Aucott, Lee (author), Dong, Hongbiao (author), Mirihanage, Wajira (author), Atwood, Robert (author), Kidess, A. (author), Gao, Shian (author), Wen, Shuwen (author), Marsden, John (author), Feng, Shuo (author), Tong, Mingming (author), Connolley, Thomas (author), Drakopoulos, Michael (author), Kleijn, C.R. (author), Richardson, I.M. (author), Browne, David J. (author), Mathiesen, Ragnvald H. (author), Atkinson, Helen V. (author)
Internal flow behaviour during melt-pool-based metal manufacturing remains unclear and hinders progression to process optimisation. In this contribution, we present direct time-resolved imaging of melt pool flow dynamics from a high-energy synchrotron radiation experiment. We track internal flow streams during arc welding of steel and measure...
journal article 2018