Biomimetics (GB), Bionik (D) - schule-bewegt.de

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14 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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Biomimetics (GB), Bionik (D)
Jürgen Bertling
Head of Business Unit Advanced Materials
• Definition, Subject of Biomimetic/Bionik
• Principles of Biomimetic Work
• Applications and Results
• Requirements of Biomimetic Research and
Development
• Conclusion
Content
»BIONIK« (D) corresponds to »BIOMIMETICS« (GB)
but not »BIONIC« (GB)
Preliminary Remark
»Biomimetic is the Development of a Technical Product
or Process based on the Investigation of a Biological
Model«
»Bionik ist die Entwicklung eines technischen Produktes
oder Prozesses auf Basis eines biologischen Vorbildes.«
Definition
in contrary to » Biomimetics/Bionik«
the term»Bionic
« (GB) means
»having an artificial device that replaces part of the
body and/or increases human capabilities«
Attention!
What is the biological model?
the results of the evolution process
the evolution (mutation and selection) itself
the successful principles of biology
-> error tolerance, use local and eco-friendly materials,
self-healing,…
Different species develop under the evolutionary process
of mutation and selection
they are optimised!
(which does not mean best!)
Why Biomimetic Approach?
or What is the Quality of Biological Models?
Mimicry - Proof of Optimization in Biology
Spike of Roses
cicada
(animal)
Principles
 discover and observe biological effects and
phenomena
 understand the relation between structure
and property (abstraction)
 transfer frombiology to technology
 apply it for a technical product/process
 microscopy (structure of materials)
 video (dynamics in locomotion)
 audio (understanding signal transmission)
Explore and observe biological effects and phenomena
Self-repair-mechanism
(Liane aristolochia macrophylla)
Understand the relation between structure and
property (abstraction)
 This is not easy!
fighting?
scraping food?
entering the land?
stabilizing the head during
sleeping?
prestige/social standing?
Transfer frombiology to technology
Biological Model Technical Solution
Similarity in
-principle
-function
-boundary conditions
-criteria of quality
with respect to similarity
Pseudo-Biomimetic I – Different Principle
man at the wall
gecko
-> vacuum
technology
-> adhesive
forces
(v. d. Wals)
different
principle
Pseudo Biomimetic II - Different Functionality
butterfly
roof tile
-> aerodynamic/
(controling
turbulence)
-> against water/
solar radiation
different
functionality
Pseudo-Biomimetic III – Different Constraints
bacteria
submarine
-> moved even by
the smallest
turbulences
different
boundary
conditions
Pseudo-Biomimetic IIII – Different Criteria of Quality
Corn poppy
(Klatschmohn)
salt shaker
-> spreading seads
-> dosing salt
different
criteria of quality
1 Define a set of
start parameters
2 Vary (Mutate) them only a little
3 Perform tests with the different
variations
4 Choose (Select) the best
parameter set
5 Good enough?
OK!
Applications I – Using Evolution itself as Biological
Model (Ingo Rechenberg, 1964)
[picture: Ingo Rechenberg]
Spacing = starting parameter
Applciations I – Reducing presssure drop in a elbow-tube
starting point
high pressure drop
result
Low pressure drop
Application II - Flying
Otto Lilienthal, 16. August 1894
Application III - Architecture
Radiolarians
USA
-
Pavillon

Expo

67
Buckminster
Fuller
Application IV – Lotus-Effect (Prof. Barthlott)
selfcleaning
Application V – Gecko-Effect (Dr. S. Gorb)
Application VI – Bionic Car (Daimler Chrysler)
[pictures: BIOKON
e.V
.]
Application VII - sandskink
(Prof. Ingo Rechenberg)
5
0
10
0
15
0
20
0
Ski
nk
Sand Gleit
winkel
25
0
30
0
35
0
40
0
Stahl
Glas
T
eflon
Nylon
Application VIII - Robotics
Application X – Self Sharpening Knifes
Requirements
 no special tool, but all technologies that
modern biology and engineering sciences offer
 transdisciplinarity (understand the different
languages and methods in biology and
technology)
 find solutions for managing complex problems
Conclusion
»it is not biomimetics/Bionik when you do not
refer to a biological model«
and
»it is not biomimetics/Bionik when you do not
transfer it proper into a technical application«
Fazit
Bionik ist ein
vielversprechendes Werkzeug in der Konzeptionsphase
von Entwicklungszyklen
bestehend aus:
• Inspiration durch Naturbeobachtung
• detaillierter Analyse biologischer Strukturen und Prozesse
• wissenschaftlich fundierter Übertragung
basierend auf
• visueller und messtechnischer Erfassung und
• mathematischer Modellierung skalenübergreifender
Strukturen und Prozesse
.
BIOKON (D)
www.biokon.net
BIMAT (USA)
www.bimat.org
BIONIS (UK)
http://www.extra.rdg.ac.uk/eng/BIONIS/
Journal of Bionics Engineering
http://jbe.jlu.edu.cn/
Fraunhofer-Institute UMSICHT
Jürgen Bertling; juergen.bertling@umsicht.fraunhofer.de
THANX!