View
216
Download
0
Tags:
Embed Size (px)
Citation preview
What TRIZ IzBy Dave Gevers
Experience:•Heavy Haul Trailers & Transporters (60 to 1,200 tons) [VP Engr.]•Turbine Engines (GE for F-14, B1B, F18, F15) [Lead Designer]•High Speed Production Equipment [Dept. Head]•Plastic Consumer Products [Internal Consultant – Tech. & TRIZ]
TRIZ Training:•“Zinovy Royzen Consulting” (1 week)•“Gen3 Partners” (8 weeks – International level 3 certified)
•Patents:•Heavy Haul – 2•Aircraft Wing Design – 7•Plastic Molding Equipment & Consumer Products – 6 pending
Closely Related Design Innovation & Problem Solving Needs
•New Design Innovation•Trends in Design, Market Analysis•Design Improvement/optimization•Problem Solving•Cause-Effect Chain Analysis
Common sets of tools can be used for both types of problems
Problem Solving
Secondary Problem
Idea Substantiation
Supereffect Analysis
Concept Evaluation
Concept Substantiation
Benchmarking
Function Analysis
Flow Analysis
Cause-Effect Chains
Analysis
Evolutionary Trends
Key Problem
Trimming
Feature Transfer
Conceptual Directions
ARIZ Application
Clone Application
40 Inventive Principle Application
Function Oriented Search
76 Standard Solution Application
Scientific Database Application
TRIZ Flow ChartMany Modules – Some Overlap
Design Innovation
40 Inventive Principles
Cause-Effect Chains
Gen3 Index
TRIZ Includes Many Techniques
Define the Problem (and boundaries)
Convert to a Format (matrix or symbolic diagram) that is:•Complete (includes ideal situation)•Abstract (removed from problem language)
Manipulate the new format to develop a complete the solution “matrix”
Convert the new matrix or symbols back to Practical Problem Solution
Symbolic
Word Description
TRIZ Table of Contents
Underlying Method Common to Most Techniques
Brief History of TRIZ•Genrikh Altshuller – 1926 - Uzbekistan (USSR)•First patent in 10th grade•At age 20 he started studying patents and categorized common solutions•Two key discoveries:• Breakthrough invention is the result of overcoming conflicts.• Technical systems evolve toward increasing ideality.
•Proposed to Stalin that he use TRIZ to help the country, which sent him and his colleagues to 25 years in coal mine labor camp above the Arctic Circle.•In prison, he studied and advance the TRIZ concepts.•After 7 years, Stalin died, Altshuller and comrades were released and wrote TRIZ articles.•Altshuller also wrote several popular science fiction novels using TRIZ to help invent futuristic devices.•In 1989 he became president of the International TRIZ Association.•Died in 1998 after writing 20 books and 400 papers.
“40 Inventive Principles”
“Conflict Resolution”
“Technology Trends”
40 Inventive Principles•Print them out & keep them handy.•We use some naturally.•Contradiction Matrix – not necessary (suggests principle based on type of conflict)
40 Inventive Principles
Algorithm of Using 76 Standard Inventive Solutions for Inventive Problem Solving (AIST)
Construct the model of the problem according to ARIZ
Transform the model of the problem into a Su-Field
Measuring or modification?Can measuring be substituted for detecting?
Measuringgroup 4.1
Is Su-Field complete?
No
Harmful interactions
No
Can substances and fields be introduced?
Can substances and fields be introduced?
NoYes
Any harmful interactions?Can substances and fields
be introduced?
1.2.1, 1.2.2, 1.2.4, 1.2.5, group 5.1, 5.2, 5.3
Yes
Is the introduction of a magnetic field possible? Is the formation of complex Su-
Fields admissible?
Check for the presence of ferromagnetic substances in the
Su-Field
Check if the Fe-Field system is dynamic
Check if the structures of the Fe-Field components are
coordinated
Check if the dynamics of the Fe-Field components are
coordinated
Apply 3rd Class Standards to solve the problem
Yes
Yes
Yes
Yes
Yes
Is the substitution of the field admissible?
Is the system dynamic?
Are the Su-Field components coordinate?
Are the dynamics of the Su-Field components coordinated?
2.4.2-2.4.4, 2.4.7, 2.4.8, 4.4.2
2.4.9
2.4.10, 4.4.5, group 5.3, 5.4
group 2.1
2.2.1
2.2.2-2.2.4
2.2.5, 2.2.6, 4.3.1, group 5.3, 5.4
2.3.1-2.3.3, 4.3.2, 4.3.3
NoM.A,T,Ch.E.M.
double, chain Su-Field
No
Yes
Yes
Yes
Can ferromag. subst. and mag. fields be introduced INSTEAD of those which are avail. in the Su-
Field?
Can additives be introduced to the external environment?
Can ferromag. additives be introduced to the external
environment?
Can electric fields and electric currents be used?
2.4.1, 4.4.1
No
2.4.5, 4.4.3
2.4.6, 4.4.4
No
No
2.4.11, 2.4.12
No
Note: The numbers outside of the blue boxes indicate the Standard Inventive Solutions that are used.
Cause-Effect Chain Analysis
Cause_Effect Chain
QUESTIONS AT EACH STEP:incorrect, other types?excessive?inadequate, missing?uneven, discontinuous, unsteady?too fast, high rate of increase, new, soon?too slow, residual effect, old, late?other?
Fields = MATChEM:Mechanical incl.fluid (force, press., torque, accel.,etc.)AcousticThermal (Temp., temp. gradient)ChemicalElectricalMagneticother?
Patent Search NotesUSPTO (advanced search) http://patft.uspto.gov/netahtml/PTO/search-adv.htm + Google Patents http://www.google.com/patentsIndex of classification codes
Example - 277 SealsIndependent vs. dependent claimsFile HistoryWork Instruction
Key Word search
Class/Sub Class search
Number of results
Time
All Relevant Patents
Gevers patent USPTO Class Index
USPTO Sched 227 File History
Patent Searching TechniquesUSPTO (advanced search) www.uspto.gov +
Classification
Key Words
Latest Refs.
S-Curve Analysis
Rate
of G
row
thM
PV o
r Ac
cum
ulati
on
•The driving function is growth rate (population growth rate, ideas/time, patents/yr, models/yr, etc…)
The S-Curve is summation (integral) of a growth function (MPV, population, indicator).
Time
Time
“Transition Function” in Math – derivative or integral
S-Curve Patents & Aircraft
Morphing WingExample of “Matrix Method”
Define the Problem (and boundaries)
Convert to a Format matrix or symbols that is:•Complete (includes ideal situation)•Abstract (removed from problem language)
Manipulate the new format to complete the solution “matrix”
Convert the new matrix or symbols back to Problem Language
Symbolic
Word Description
Underlying Method Common to Most Techniques
Morphing Wing Matrix
Conflict Resolution
•Separate Contradictory Demands• Separation in Space - move conflicts apart• Separation in Time - when does it need to be each way• Separation in Relation - which specific aspect is in contradiction• Separation in System Level - consider the whole system
•Satisfy Contradictory Demands - change some parameter(s)•Bypass Contradictory Demands - make the contradiction irrelevant
Use the 40 Inventive Principles
SummaryTRIZ is a set/collection of tools from Altshuller ‘s patent studies:•40 Inventive Principles , 76 Standard Solutions, Algorithm•Trends in Evolution of Technology•Conflict Resolution•Graphical/Symbolic Method of Modeling-Manipulating-Discovering•Cause-Effect Chain Analysis•Customer Needs Analysis – added late in TRIZ development