1 biomimetic – learning by nature bio- s and mimetic -s (ancient greek) life and imitation...
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Biomimetic – learning by nature
Bio-s and Mimetic-s (ancient greek)life and imitation
biological systems transfered to technical systems
Saltshaker and poppy seed (Papaver Rhoeas) according to Raoul H. France„Die Pflanze als Erfinder“, 1920
Aus: SiemensForum München/Berlin, „Bionik, Zukunfts-Technik lernt von der Natur“, Begleitbuch zur Ausstellung im Landesmuseum Mannheim
Minaret und Equisetum
The tallest Minaret in India Schachtelhalm (Equisetum) Minarett in Shibam (N-Jemen)
Line of action of biomimeticTop-Down Process =analogy-biomimetic• definition of the problems • Search for analogy in nature• analysis of the examples in nature • Search for solutions to the
problems concerning the knowledge of nature
e.g.: Selfhealing
Bottum-Up Process =abstraction-biomimetic• biological basic research• identification and description of a
fundamental principle• Abstraction of this principle
(Loslösung of the biological example)• Search for possible technical
applications• Development of technical
applications
e.g.: Fin Ray Effect®
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Today`s topics
• Fin Ray Effect®• Self-healing• Lotus-effect®
• Petal-effect• Folding
Fin Ray Effect®
T. Lautenschläger: Bionik – Spannende Entdeckungen aus der Natur © Duden Paetec GmbH, Berlin.
The Fin Ray Effect® - the secret of the fin
http://www.felixklingmueller.de/pdf/formfolgt.pdf,
operating mode
Flossenstrahlen (Finaxis)
Abbildung aus: M. Eckhardt, M. Germ, J. Grosschedl; Der Flossenstrahleffekt- Natur als Lösungsquelle für technische Innovationen in Unterricht Biologie Nr. 332, Bionik, S: 12-16, März 2008
Application to tongs and chair
http://www.vdwf.de/VDWF-Magazin/vdwf_id_02_2005.pdfhttp://www.polsoz.fu-berlin.de/kommwiss/institut/wissenskommunikation/media/dim23.pdf
Self-healing by microencapsulation Havea brasiliensis
Abb. aus: Nellesen A.; aus einem Vortrag bei dem 5. Bionikkongress an der HS Bremen 22. -23.10. 2010
Microencapsulation
Abb. aus: http://www.howstuffworks.com/self-healing-spacecraft1.htm
Abb. aus: http://cerncourier.com/cws/article/cern/28442
Self-healing by a system of canals e.g. black salsify (Scorzonera)
Abb. aus: Nellesen A.; aus einem Vortrag beim 5. Bionikkongress an der HS Bremen 22. -23.10. 2010
Selfhealing by a network
http://www.technologyreview.com/biomedicine/19166/
http://home.tudelft.nl/onderzoek/kenniscentra/delft-research-centres/delft-centre-for-materials/self-healing-materialen/onderzoeksprojecten/blood-vessels-in-polymers-for-self-healing/
Lotusleafsurface with burling
Lotusblatt eEektronenmikroskop, Bilder FH Dornbirn, Dr. Heinz Duelli
Tropaeolum-effectNasturtium (Kapuzinerkresse, Tropaeolum) with hydrophobic and hydrophil pollutant
Water drop and Cocoa powder
On Tropaeolum On Lycopodium (above) bzw. Aeroxide (down)
Preparing an artificial lotus-surface
Candle
Microscope slide
Carbon black
Microscope slide
Biofouling – barnacle (Balanidae) on askin of a whale hulk
Aus: http://www.welt.de/wissenschaft/article4896506/Wie-Seepocken-ihren-Superklebstoff-produzieren.html
„The setting of marine organismen courses different disadvantages:¤ minimisation of speed/ der Wasserwiderstand increases up to 15 %¤ consumption of energy increases¤ limitation of manoeuvrability / more dangerous¤ cost for cleaning increases up to 40%“
Aus: http://www.innovations-report.de/html/berichte/materialwissenschaften/bericht-12511.html?
Hydrophoby of Salvinia (Wasserfarn)
Abbildungen aus: http://www.nees.uni-bonn.de/grenz/luft.html
Hydrophoby of Ancylometes bogotensis (Wasserspinne)
Abbildungen aus: http://www.nees.uni-bonn.de/grenz/luft.html
Retention of air on a boatsurface
Abbildungen aus: http://www.lotus-effect.de/funktion/luft.php
Superhydrophile leaves in the centre and hydrophobe leaves on the periphere
http://rsta.royalsocietypublishing.org/content/367/1893/1487.full#ref-61
Folding in nature and technology
http://de.wikipedia.org/wiki/Stent, 20.11.2011
Furniture by folding, trade name „Plicio“
Abbildungen aus : http://www.plicio.com/Varius/Varius-gruen-weiss::2.html
