Mechanical Engineering Magazine - March 2016
نویسندگان
چکیده
O ver millions of years of evolution, fish have developed a flow-sensing system to detect the surrounding fluid motion, which consists of hundreds of receptor organs distributed on – and under – the skin [1]. Flow sensing serves an important role in swimming behaviors such as rheotaxis (orientation into or against the flow direction), station holding, predation, and schooling. Advanced underwater vehicles that are biologically inspired attract scientific attention because of their potential for energy efficiency and maneuverability [2,3,4,5]. A flow-sensing capability enables robotic fish to navigate in unknown, murky, and cluttered environments. To demonstrate bio-inspired flow sensing and control using distributed pressure and velocity sensors, a rigid airfoil-shaped robotic fish [6,7] and a flexible, self-propelled robotic fish [8] have been developed at the University of Maryland. The robots are capable of rheotaxis, station holding, and speed control using a recursive Bayesian algorithm to assimilate measurements of the flow. A closed-loop control strategy that comprises feedback and feedforward designs has been validated in experiments.
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From the Desk of Head
It's a matter of great pleasure that Mechanical Engineering Students' Association in our department is publishing the First Edition of its annual magazine. The magazine shares the knowledge of the different conventional & emerging fields of mechanical engineering through its technical articles alongwith general articles which serve as a basis for career of the students. I congratulate the entir...
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