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  1. No Access

    Article

    Analytical modeling and experimental validation of a butterfly-shaped piezoelectric composite transducer

    This paper presents an analytical model of a butterfly-shaped piezoelectric composite transducer. The vibration model of the transducer is firstly established based on the lateral and longitudinal deformations...

    Yuyang Lin, Yunlai Shi, Jun Zhang, Haichao Sun, Han Sun in Archive of Applied Mechanics (2022)

  2. No Access

    Article

    Development and placement accuracy evaluation of an MR conditional robot for prostate intervention

    Robot-assisted prostate intervention under magnetic resonance imaging (MRI) guidance is a promising method to improve the clinical performance compared with the manual method. An MR conditional 6-DOF prostate ...

    Yuyang Lin, Yunlai Shi, Fugang Wang… in Medical & Biological Engineering & Computi… (2021)

  3. No Access

    Article

    Novel linear piezoelectric motor for precision position stage

    Conventional servomotor and step** motor face challenges in nanometer positioning stages due to the complex structure, motion transformation mechanism, and slow dynamic response, especially directly driven b...

    Chao Chen, Yunlai Shi, Jun Zhang, Junshan Wang in Chinese Journal of Mechanical Engineering (2016)

  4. No Access

    Article

    Application of piezoelectric materials in a novel linear ultrasonic motor based on shear-induced vibration mode

    A novel linear ultrasonic motor based on d 15 effect of piezoelectric materials was presented. The design idea aimed at the direct utilization of the shear-induced vibration modes of piezoelectric...

    Chao Chen 陈超, Yunlai Shi, Haipeng Chen… in Journal of Wuhan University of Technology-… (2014)

  5. No Access

    Article

    Simple new ultrasonic piezoelectric actuator for precision linear positioning

    This paper presents a new linear piezoelectric actuator for linear translation. The positioning stage driven by the actuator has a very simple and compact structure consisting of a linear guide and the linear ...

    Yunlai Shi, Chunsheng Zhao in Journal of Electroceramics (2012)

  6. No Access

    Article

    Precision control system of two-DOF stage with linear ultrasonic motor

    Using an appropriate control method, linear ultrasonic motors can be used in applications requiring high position accuracy. In this paper, a closed loop PI control system is designed to achieve high position a...

    Hanlei Zhang, Yunlai Shi, Chunsheng Zhao in Frontiers of Mechanical Engineering in China (2008)