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  1. No Access

    Article

    Development and Performance Analysis of Pneumatic Variable Stiffness Imitation Dolphin Tail Actuator

    It has been demonstrated that the flexibility of the structure can enhance the kinematic performance of the underwater bionic robotic fish. Furthermore, the thrust of the underwater robotic fish can be further...

    Yu Zhang, Ning Wang, Wenchuan Zhao, Linghui Peng, Jun Luo in Journal of Bionic Engineering (2024)

  2. No Access

    Chapter and Conference Paper

    Experimental Study on the Absolute Measurement of Flats

    We present an absolute method of shift-rotation to calibrate the flatness of flats. Compared with the conventional three-flat test method, the method requires only two flat and no flips of the flats. And there...

    Wenchuan Zhao, Weihong Song, Gaofeng Wu, Yongqian Wu in Fringe 2013 (2014)

  3. No Access

    Article

    Absolute measurement of flats with the method of shift-rotation

    We present an absolute measurement of flats in a Fizeau interferometer with the method of shift-rotation, which only requires rotational measurements and shift measurement with a translation. Experiments have ...

    Weihong Song, Fan Wu, ** Hou, Wenchuan Zhao, Yongjian Wan in Optical Review (2013)