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Yang Xiaogang
Sun Yat-Sen University
  1.  16
    Modeling of a Chaotic Gyrostat System and Mechanism Analysis of Dynamics Using Force and Energy.Guoyuan Qi & Xiaogang Yang - 2019 - Complexity 2019:1-13.
    Incorporating both viscous friction torque and external torque, a mathematical model of a gyrostat system consisting of three rotors and a fixed outer frame is configured. This model is transformed into a Kolmogorov-type system for force analysis. The force field in the gyrostat system includes four different torques—inertial, internal, dissipative, and external. Correspondingly, four different energies are identified and the interconversion of energies is analyzed. The Casimir power being equivalent to the error power between the supplied power and the dissipative (...)
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  2. Intermittent Time-Varying Formation Control for High-Order Networked Agents Subject to Discontinuous Communications.Lixin Wang, Zhe Luo, Xiaoqiang Li, Xinsan Li & Xiaogang Yang - 2021 - Complexity 2021:1-14.
    This paper investigates the leaderless and leader-follower time-varying formation design and analysis problems for a group of networked agents subject to discontinuous communications. Firstly, a leaderless time-varying formation control protocol is proposed via the intermittent control strategy, where the control input of each agent is constructed by the distributed local state information and formation instructions in the communication time unit, but it is zero in the noncommunication time unit. Then, an explicit formulation of the formation center function is determined to (...)
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  3. Guaranteed Cost Formation Tracking Control for Swarm Systems with Intermittent Communications.Purui Zhang, Xiaoqian Chen & Xiaogang Yang - 2020 - Complexity 2020:1-13.
    The current paper studies guaranteed cost time-varying formation tracking design and analysis problems of high-order swarm systems subject to intermittent communications. Different from the existing work of the time-varying formation control, the time-varying formation tracking can be achieved while certain performance can be guaranteed, and the impacts of the intermittent communications and switching topologies are considered. First, a new intermittent time-varying formation tracking control protocol with a global performance index is proposed, where not only the formation regulation performances but also (...)
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