Z
Zexiang Li
Researcher at Hong Kong University of Science and Technology
Publications - 255
Citations - 10164
Zexiang Li is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Parallel manipulator & Motion control. The author has an hindex of 42, co-authored 251 publications receiving 9664 citations. Previous affiliations of Zexiang Li include University of California, Irvine & George Washington University.
Papers
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Proceedings ArticleDOI
Analysis and control of redundant parallel manipulators
TL;DR: This work focuses on the study of the undesired effects of singularity in parallel mechanisms and proposes a method to solve them, namely the method of redundancy.
Proceedings ArticleDOI
Control of seismic-excited buildings using active variable stiffness systems
TL;DR: Active variable stiffness (AVS) systems have been demonstrated to be effective in response control of buildings subjected to earthquake excitations based on the theory of variable structure system (VSS) or sliding mode control (SMC).
Proceedings ArticleDOI
Advantages and dynamics of parallel manipulators with redundant actuation
TL;DR: The dynamic model of redundantly actuated closed-chain mechanisms is presented explicitly by applying Lagrange-D'Alembert formulations and the experimental results show the validity of PID control.
Proceedings ArticleDOI
Optimal design of parallel manipulators for maximum effective regular workspace
TL;DR: Kinematic design of parallel manipulators is addressed in this paper, and the controlled random search (CRS) technique is applied to numerically solve the problem.
Journal ArticleDOI
Disturbance observer based hovering control of quadrotor tail-sitter VTOL UAVs using H ∞ synthesis
TL;DR: Results show that the presented DOB control technique can effectively estimate various types of wind disturbances and lead to improved hovering accuracy of the tail-sitter UAV.