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

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

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


Introduction on the needs to climbing on the wall

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

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

Setae of Gecko

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


Principle of gecko adhesion

Principle of Gecko Adhesion


Substitution force

Substitution Force


Compliance of gecko like hair

Compliance of Gecko-like Hair


Lever effect

Lever Effect


Foot print effect

Foot-print Effect


Peeling effect

Peeling Effect


Stiffness asymmetry 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


Prototype magnetic pads1

Prototype Magnetic Pads


Discussion

Discussion

  • Drawback:

    Only climbing up & down!

  • Improvement:


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