Page 282 - Design for Six Sigma for Service (Six SIGMA Operational Methods)

Theory of Inventive Problem Solving (TRIZ) 251

29. Pneumatics and hydraulics
• Use gas and liquid parts of an object instead of solid parts (e.g.,
inflatable, filled with liquids, air cushion, hydrostatic, hydroreactive).
30. Flexible shells and thin films
• Use flexible shells and thin films instead of three-dimensional
structures.
• Isolate the object from the external environment using flexible shells
and thin films.
31. Porous materials
• Make an object porous or add porous elements (inserts, coatings, etc.).
• If an object is already porous, use the pores to introduce a useful
substance or function.
32. Color changes
• Change the color of an object or its external environment.
• Change the transparency of an object or its external environment.
33. Homogeneity
• Make objects interacting with a given object of the same material
(or a material with identical properties).
34. Discarding and recovering
• Make portions of an object that have fulfilled their function go away
(discard by dissolving, evaporating, etc.) or modify these directly
during operation.
• Conversely, restore consumable parts of an object directly during
operation.
35. Parameter changes
• Change an object`s physical state (e.g., to a gas, liquid, or solid).
• Change the concentration or consistency.
• Change the degree of flexibility.
• Change the temperature.
36. Phase transitions
• Use phenomena occurring during phase transitions (e.g., volume
changes, loss or absorption of heat).
37. Thermal expansion
• Use thermal expansion (or contraction) of materials.
• If thermal expansion is being used, use multiple materials with
different coefficients of thermal expansion.
38. Strong oxidants
• Replace common air with oxygen-enriched air.
• Replace enriched air with pure oxygen.
• Expose air or oxygen to ionizing radiation.
• Use ozonized oxygen.
• Replace ozonized (or ionized) oxygen with ozone.