Undulate fin is the main propelling organ of MPF mode fish, which could produce propelling wave continually and controllabily while swimming, and this propelling mode has characteristics of high efficiency and low disturbance to fluid field. In this paper, biological structure of “Nilotic Ghost” fish’s long flexible fin(Undulate Fin) is studied with physiological anatomizing and X-ray perspectiving means. Then motion characteristics of the undulate fin are revealed with pictures from fish’s swimming video. Under the bionical conclusions, a hydraulic-driven bionic joint for undulating thruster is designed, including a pair of restoration springs. At last some calculating simulation and testing experiments are carried out, so as to analyze and verify this bionic joint’s characteristics. Results show that, bionic joint driven by hydraulic system could immitate the flexible movements of natural rib in undulate fin, which are described as position restoration, changing of swaying range as well as frequency.


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    Titel :

    Design and Analysis of Hydraulic-Driven Bionic Joint for Undulating Thruster


    Beteiligte:
    Xu, Hai-Jun (Autor:in) / Pan, Cun-Yun (Autor:in) / Zhang, Dai-Bing (Autor:in) / Zhang, Xiang (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    6 Seiten




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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