Structural properties of a scaled gecko foot hair
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Structural Properties of a Scaled Gecko Foot-hair. Reporter: Dong-Yi LinAdviser: Wang-Long Li Date:01/08/2008. Bioinspiration and Biomimetics , 2(2007), 1-8 Jose Berengueres, etc. Outline of the Report.

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Structural Properties of a Scaled Gecko Foot-hair

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Structural Properties of a Scaled Gecko Foot-hair

Reporter: Dong-Yi LinAdviser: Wang-Long Li Date:01/08/2008

Bioinspiration and Biomimetics, 2(2007), 1-8

Jose Berengueres, etc..


Outline of the Report

  • Introduction on the need of the climbing system and some adhesion mechanisms.

  • Gecko hair structure

  • Shape effects of gecko hair structure

  • Prototype Magnetic Pads


日本東京鐡塔

Introduction on the Needs to Climbing on the Wall

  • Robots for surveillance/security that can cling and move on vertical surfaces;

  • Robots for the maintenance/inspection of manmade structures.


Adhesion Mechanisms

(b)Electrostatic Chucks

(a) Suction Cups

Conference Record of the 2001 IEEEVolume 1, Issue , 30 Sep-4 Oct 2001 Page(s):399 - 403 vol.1

Fifth International Conference on IEEE

Volume , Issue , 19-22 Jun 1991 Page(s):753 - 758 vol.1

(c) Silk-like Secretion

(d)Millimeter-claws

Tarantula

NATURE | Vol 443 | 28 September 2006

Proc. of SPIE Vol. 6230, 623017, (2006)


Setae of Gecko

  • The characteristic shapes of the hairs seem related to functions for energy efficient walk.


Principle of Gecko Adhesion


Substitution Force


Compliance of Gecko-like Hair


Lever Effect


Foot-print Effect


Peeling Effect


Stiffness Asymmetry Effect

Stiff hairs are easier to detach from a non-ideally-flat surface than softer ones. Ex. Chewing gum


Prototype Magnetic Pads


Prototype Magnetic Pads


Discussion

  • Drawback:

    Only climbing up & down!

  • Improvement:


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