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Time-varying lyapunov function for mechanical systems

  • Bin Zhang*
  • , Yingmin Jia
  • *Corresponding author for this work
  • Beijing University of Posts and Telecommunications

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a general method for constructing time-varying Lyapunov functions is provided for mechanical systems. A new class of time-varying Lyapunov functions is provided and sufficient conditions of uniform asymptotical stability are established. Different from the existing results on this subject, we remove the periodic restrictions and persistency of excitation restrictions in our work. Moreover, the results are extended into the robustness cases with unmodeled dynamics. Based on the Lyapunov methods, it is shown that uniform asymptotical stability can be obtained by using the control input provided in our work.

Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalJournal of Robotics, Networking and Artificial Life
Volume5
Issue number4
DOIs
StatePublished - Mar 2019

Keywords

  • Mechanical systems
  • strict Lyapunov function
  • subsystems
  • time-varying systems

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