MAE486_Fall11_L8_S - MAE 486 Design of Mechanical Systems...

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Unformatted text preview: MAE 486 Design of Mechanical Systems Lecture 8 Fall 2011 Today s topics: Project Management (Chapter 4); •  Team work; •  Problem solving tools; Concept Generation (Chapter 6); Review: Cri3cal Path Method •  What is it for? •  Why is it needed? •  How to build it? –  Know the bolts and nuts first. –  Know the rules; •  Dummy ac3vi3es examples. •  Know the rules: Activity A B C –  Dura3on (D); –  Earliest start 3me (ES); D –  Latest start 3me (LS); F –  Earliest finish 3me (EF); G –  Latest finish 3me (LF); H –  Total float (TF); –  Cri3cal path: I E K ES LS TF Review: Concept Genera3on (Chapter 6) •  What do the most innova3ve products have in common? •  What do we need most to generate new concepts? •  View of innova3ve products genera3on: –  Classical Paradigm vs. Current Paradigm •  Society view of crea3vity –  19th Century view vs. 20th Century view •  •  •  •  •  •  •  Freud’s model of levels of minds: What is Freud’s model used for? What is the basic conclusion? Brain ­Dominance Theory What is leX brain for? What is right brain for? Informa3on Processing & Computa3onal Modeling Thinking Processes  Crea3ve Ideas •  How come some people are more crea3ve than others? •  How to find these techniques & methods? •  Crea3vity & Problem Solving: What is a crea3ve idea? •  Crea3ve process What can you do to be crea3ve? •  How to improve? Barriers to Crea3ve Thinking •  What are the mental blocks? Crea3ve Thinking Method •  Brainstorming: How to have a good brainstorming? –  Recall: What should and what should not be encouraged? –  What others? –  When to evaluate? –  Useful tool •  Beyond brainstorming: How to improve? –  Six key ques3ons: –  Five whys? –  Check list (Alex Osborn) Crea3ve Thinking Method •  Random Impact Technique (Edward de Bono) •  Synec3cs: Based on analogy –  Psychological components > intellectual processes. –  Four different analogies Concept Map Crea3ve Methods for Design •  Ini3al stage of the concept genera3on: Key? What type of thinking? •  Later, refinement and evalua3on: Goal? What type of thinking? Refinement and Evalua3on of Ideas •  What are the steps? –  Step 1: •  What tool to use? •  What is the challenge? •  Solu3on –  Step 2: •  Different from brainstorming? Genera3ng Design Concepts •  (Copy from 6.3) •  Design space concept •  How to search the design space? –  One try & error way: –  Limits •  Systema3c Design Methods –  Advantages –  What are the different types: Func3on Decomposi3on & Synthesis •  What are the two basic ways to decompose a physical system? •  What is •  What comes out of it? What are the steps? Func3on Representa3on •  Key concept: –  Technical system  ­ •  What does that mean in the context of design? Func3on Basis Func3on Decomposi3on •  Most general func3on structure: •  What are the steps? Func3onal Decomposi3on •  What is it best for? •  Strengths & Weaknesses ...
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This note was uploaded on 09/30/2011 for the course MECH 486 taught by Professor Zho during the Spring '11 term at Rutgers.

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