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Measurements have shown that when the effects of stray field are not negligible the physical Backward-wave or Left-handed transmission line made of lumped L-C components must be modeled by a balanced Composite right/left-handed transmission line model. Corresponding transition frequency not only really exists but also can be estimated by the experiment proposed. The obtained results may have significance...
This paper reveals a new phenomenon of the body side-sway for rigid robot fish and proposes three effective restraining methods. The body side-sway problem is produced by the lateral component of hydrodynamic force and inertial force, while influenced by mass distribution of fish body and oscillating rules of caudal fin. Considering the body side-sway, a virtual prototype for two-joint robot fish,...
This paper proposes a modular design method for realizing the torpedo-shape robot fish (ldquoHRF-IIrdquo). By biological inspiration, a tail propulsive module and an up-down motion module upon the robot fish are developed respectively. Considering the design principle and power estimation on each module, a robot prototype is completed to conduct the underwater test. The experimental results state...
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