Q
Qingsong Xu
Researcher at University of Macau
Publications - 348
Citations - 9512
Qingsong Xu is an academic researcher from University of Macau. The author has contributed to research in topics: Motion control & Sliding mode control. The author has an hindex of 51, co-authored 319 publications receiving 7565 citations. Previous affiliations of Qingsong Xu include Hefei University of Technology.
Papers
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Journal ArticleDOI
Adaptive Sliding Mode Control With Perturbation Estimation and PID Sliding Surface for Motion Tracking of a Piezo-Driven Micromanipulator
Yangmin Li,Qingsong Xu +1 more
TL;DR: Experimental results demonstrate that the performance of proposed controller is superior to that of conventional SMCPE in both set-point regulation and motion tracking control and validates the feasibility of the proposed controller in the field of micro/nano scale manipulation as well.
Journal ArticleDOI
Design and Analysis of a Totally Decoupled Flexure-Based XY Parallel Micromanipulator
Yangmin Li,Qingsong Xu +1 more
TL;DR: The kinematic and dynamic modeling of the manipulator are conducted by resorting to compliance and stiffness analysis based on the matrix method, which are validated by finite-element analysis (FEA).
Journal ArticleDOI
Kinematic analysis of a 3-PRS parallel manipulator
Yangmin Li,Qingsong Xu +1 more
TL;DR: A 3-PRS parallel manipulator with adjustable layout angle of actuators has been proposed in this paper, and the key issues of how the kinematic characteristics in terms of workspace and dexterity vary with differences in the arrangement of actuator are investigated.
Journal ArticleDOI
Analytical modeling, optimization and testing of a compound bridge-type compliant displacement amplifier
Qingsong Xu,Yangmin Li +1 more
TL;DR: In this paper, a flexure-based compound bridge-type (CBT) displacement amplifier for piezoelectric drives is investigated, and the derived models are utilized to optimize the amplifier structure through particle swarm optimization (PSO).
Journal ArticleDOI
A Totally Decoupled Piezo-Driven XYZ Flexure Parallel Micropositioning Stage for Micro/Nanomanipulation
Yangmin Li,Qingsong Xu +1 more
TL;DR: Experimental results reveal that a submicron accuracy 1-D and 3-D positioning can be achieved by the system, which confirms the effectiveness of the proposed mechanism and controller design as well.