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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11262840 | PMC |
| http://dx.doi.org/10.17294/2330-0698.2080 | DOI Listing |
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The restricted intermittent control for high-speed train movement via the full state dependent event-triggered method.
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College of Science, Hunan University of Technology, Zhuzhou, 412008, Hunan, China. Electronic address:
In this paper, the full state dependent event-triggered aperiodic intermittent control (FE-AIC) strategy based on input constraints is introduced to minimize energy consumption and enhance speed tracking accuracy in the high-speed train (HST) operation. Firstly, a dynamic model based on multi-mass-point (MMP) for HST has been established, transforming the cruise control problem into an error asymptotic convergence problem. Secondly, restricted FE-AIC (RFE-AIC) controller is designed separately in the presence and absence of external disturbances to realize tracking objects.
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Department of Earth and Planetary Sciences, University of California, Davis, CA 95616, USA.
For sustained swimming and flights, vertebrates and insects oscillate their propulsors periodically within a narrow range of Strouhal number (St), a dimensionless quantity describing the rate and density of the motion, suggesting a close relationship between the range and cruising optimality. The persistence of this range across size and fluids has puzzled biologists and engineers, resulting in multiple interpretations of its cause. Here, we propose that the optimal St range is largely constrained by power output efficiency of the trailing edge of the caudal fin.
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Department of Mechanical Engineering, Aalto University, Espoo 20110, Finland.
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