【正文】 me ? Combine harvester ? Manufacture cells ? Grass collector on a lawnmower ? Mixer taps ? Pipelined puter processors perform different stages in a calculation simultaneously ? Vector processors perform the same process on several sets of data in a single pass ? Fourier analysis – integration of many sine curves 7 Module SESA3002a。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 3. Local Quality A Change an object39。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) TRIZ 40 Design Principles (Adapted from Slides Developed by Darryl Mann, Creax) 1 Module SESA3002a。 Aerospace Design Concept design。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 4. Asymmetry A Change the shape or properties of an object from symmetrical to asymmetrical ? Introduce a geometric feature which prevents incorrect usage/assembly of a ponent (. earth pin on electric plug) ? Asymmetrical funnel allows higher flowrate than normal funnel ? Put a flat spot on a cylindrical shaft to attach a locking feature ? Oval and plex shaped Orings ? Introduction of angled or scarfed geometry features on ponent edges ? Cam ? Ratchet ? Aerofoil – asymmetry generates lift ? Eccentric drive ? Blohm und Voss observation aircraft B Change the shape of an object to suit external asymmetries (. ergonomic features) ? Car steering system pensates for camber in road ? Wing design pensated for asymmetric flow produced by propeller ? Turbomachinery design takes account of boundary layer flows (?endbend?) C If an object is asymmetrical, increase its degree of asymmetry. ? Use of variable control surfaces to alter lift properties of an aircraft wing ? Special connectors with plex shape/pin configurations to ensure correct assembly ? Introduction of several different measurement scales on a ruler 6 Module SESA3002a。 Aerospace Design Concept design。 Aerospace Design Concept design。upside down39。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 15. Dynamics A Allow (or design) the characteristics of an object, external environment, or process to change to be optimal or to find an optimal operating conditionA ? Adjustable steering wheel (or seat, or back support, or mirror position...) ? Gel fillings inside seat allow it to adapt to user ? Shape memory alloys/polymers. ? Racing car suspension adjustable for different tracks and driving techniques ? Telescopic curtain rail allows for one size fits all B Divide an object into parts capable of movement relative to each other ? Articulated lorry ? Folding chair/mobile phone/laptop/etc ? Brush seals C If an object (or process) is rigid or inflexible, make it movable or adaptive ? Bendy drinking straw ? Flexible joint ? Strimmer D Increase the degree of free motion ? Use of different stiffness fibres in toothbrush – easily deflected at the edges to prevent gum damage, hard in the middle ? Loose sand inside truck tyre gives it selfbalancing properties at speed 17 Module SESA3002a。 touch up with a brush ? Fill, then top off when pouring a pint of Guinness. ? Shrink wrapping process uses plastic deformation of wrapping to acmodate variations in vacuum pressure. ? ?Roughing? and ?Finish? machining operations. ? Overfill holes with plaster and then rub back to smooth. ? (Use of Pareto analysis to prioritise actions when not all can be achieved with the available resources.) 18 Module SESA3002a。 Aerospace Design Concept design。 Aerospace Design Concept design。 Aerospace Design Concept design。 Aerospace Design Concept design。 Aerospace Design Concept design。 Aerospace Design Concept design。 Aerospace Design Concept design。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 17. Another Dimension A If an object contains or moves in a straight line, consider use of dimensions or movement outside the line ? Serrated or scalloped edges on a knife blade or hole punch ? Curved bristles on a brush ? Coiled telephone cable ? “Stacked” elevator Petronas towers B If an object contains or moves in a plane, consider use of dimensions or movement outside the current plane ? Spiral staircase uses less floor area ? Introduction of down and up slopes between stations on railway reduces train acceleration and deceleration power requirements ? Conical instead of plain flange joint C Use a multistorey arrangement of objects instead of a singlestorey arrangement ? Cassette with 6 CDs to increase music time and variety ? Multistorey office blocks or carparks D Tilt or reorient the object, lay it on its side ? Dump truck E Use 39。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 16. Partial or Excessive Actions A If 100 percent of an object is hard to achieve using a given solution method then, by using 39。 the water then drains by itself. ? Turn an assembly upside down to insert fasteners ? Open tinned beans from the bottom to get out beans that would otherwise have stuck to the bottom due to storage 15 Module SESA3002a。 Aerospace Design Concept design。 Aerospace Design Concept design。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 5. Merging A Bring closer together (or merge) identical or similar objects or operations in space ? Automatic rifle/machine gun ? Multicolour ink cartridges ? Multiblade razors ? Bifocal lens spectacles ? Double/triple glazing ? Strips of staples ? Catarmaran/trimaran B Make objects or operations contiguous or parallel。 Aerospace Design Concept design。Concept design。 TRIZ (Teoriya Resheniya Izobreatatelskikh Zadatch ) Principle 2. Taking Out A Separate an interfering part or property from an object, or single out the only necessary part