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THEORY OF INVENTIVE PROBLEM SOLVING : HOW TO MAKE BIOMIMETIC INVENTIONS

Dr.Olga Bogatyreva, ensob@bath.ac.uk. How to grip on ice?. How to climb a tree?.

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THEORY OF INVENTIVE PROBLEM SOLVING : HOW TO MAKE BIOMIMETIC INVENTIONS

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  1. Dr.Olga Bogatyreva, ensob@bath.ac.uk How to grip on ice? How to climb a tree? The Russian system tool “TRIZ “ was developed to enable engineers to solve problems using alien disciplines. We are discovering how to include biology in the system to make Biomimetic solutions available to technology. THEORY OF INVENTIVE PROBLEM SOLVING : HOW TO MAKE BIOMIMETIC INVENTIONS Using TRIZ we designed the algorithm for transferring ideas from biology into engineering: 1. What is the problem? How to attach to a surface while moving? 2. Uncover contradictions: Technical Contradiction to resolve: How to increase force on the ground without help of weight? (see field 10/1 in TRIZ Matrix) Engineering solutions (TRIZ matrix recommends) Nature’s solution principles: (BIOTRIZ Matrix recommends) №1“Segmentation:” №8 “Anti-Weight” №18 “Mechanical vibration” №37 “Thermal expansion” № 1 “Segmentation” : Divide paw on several pads № 3 “Local quality” : Develop sharpness locally №17 “Another dimension”: Make contact surface 3D Technical Contradiction to resolve: How to walk on points when you are heavy? (To reduce contact surface area without loosing weight - field 5/1 in TRIZ Matrix) №19 “Periodic action”: №15 “Dynamics” № 2 “Taking out” №4 “Asymmetry” №17“Another dimension” №29 “Pneumatics and hydraulics” Retracted claw Extended claw Technical Contradiction to resolve: How to be sharp only when it is necessary? (To reduce surface contact area without loosing the adaptability and composition stability - fields 5/35 and 5/13 in TRIZ Matrix) №15 “Dynamics” №30 “Flexible shells and thin films” №2 “Taking out” №11 “Prior cushioning” №13 “The other way round” №39 “Inert atmosphere” №19 “Periodic action” №15 “Dynamics” 3. Compare biological and engineering solutions Copying natural solutions: ice treads: 1, 15, 17 4. Make a Biomimetic solution The universal wheel can be used as a conditional one with the tyres inflated for moving under normal road conditions. But when the surface is covered with ice or snow and is slippery, the tyre is deflated until the two lateral discs provided with teeth will grip the road surface. Universal wheel possessing traction on both solid and icy surface Use intersected principles (1, 15, 17) + pure technical ones (2,13, 29, 30) Self-cleaning gripping boots A boot provided with 2 layers: soft elastic and solid outsole. The hard steel spikes pass through these layers under the person’s weight and grip the surface. In lifting the foot the elastic bottom is released and the solid outsole cleans the spikes of mud or snow. Dr. Olga Bogatyreva Dr. Nikolay Bogatyrev TRIZ project, CBNT

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