An Uncontrolled Toy That Can Walk But Cannot Stand Still

dc.creatorColeman, Michael J.
dc.creatorRuina, Andy
dc.date1997-11-10
dc.date1997-11-18
dc.date.accessioned2026-07-07T05:55:56Z
dc.date.available2026-07-07T05:55:56Z
dc.descriptionWe built a simple two-leg toy that can walk stably with no control system. It walks downhill powered only by gravity. It seems to be the first McGeer-like passive-dynamic walker that is statically unstable in all standing positions, yet is stable in motion. It is one of few known mechanical devices that are stable near a statically unstable configuration but do not depend on spinning parts. Its design is loosely based on simulations which do not predict its observed stability. Its motion highlights the possible role of uncontrolled nonholonomic mechanics in balance.
dc.description4 pages, 2 Encapsulated Postscript figures, uses epsf.tex, revtex.sty, amsfonts.sty, aps.sty, aps10.sty, prabib.sty; Submitted to Phys. Rev. Let.,6/14/97, revised and re-submitted 11/11/97 ; information about Andy Ruina's lab and the authors' other publications can be found at: http://tam.cornell.edu/programs/humanpower/humanpower.html
dc.identifierhttps://arxiv.org/abs/physics/9711006
dc.identifierhttp://arxiv.org/abs/physics/9711006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/87430
dc.subjectClassical Physics
dc.subjectMedical Physics
dc.titleAn Uncontrolled Toy That Can Walk But Cannot Stand Still
dc.typetext

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