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Creators/Authors contains: "Whitman, Julian"

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  1. ; ; ; ; ; ; ; (, IEEE Robotics and Automation Letters)
    null (Ed.)
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  2. ; ; ; ; ; ; ; (, International Conference on Intelligent Robots and Systems (IROS))
    null (Ed.)
    Snake robots have the potential to locomotethrough tightly packed spaces, but turning effectively withinunmodelled and unsensed environments remains challenging.Inspired by a behavior observed in the tiny nematode wormC.elegans, we propose a novel in-place turning gait for elongatedlimbless robots. To simplify the control of the robots’ many in-ternal degrees-of-freedom, we introduce a biologically-inspiredtemplate in which two co-planar traveling waves are superposedto produce an in-plane turning motion, theomega turn. Theomega turn gait arises from modulating the wavelengths andamplitudes of the two traveling waves. We experimentally testthe omega turn on a snake robot, and show that this turninggait outperforms previous turning gaits: it results in a largerangular displacement and a smaller area swept by the bodyover a gait cycle, allowing the robot to turn in highly confinedspaces. 
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