MAE486_Fall11_L3_S

MAE486_Fall11_L3_S - MAE 486 Design of Mechanical Systems...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MAE 486 Design of Mechanical Systems Lecture 3 Fall 2011 Today s topics: Introduction to Design (Chapter 1); •  Design Review; •  Redesign; •  Social consideration of Designs; Problem Definition (Chapter 3); •  Introduction; •  Identify Customer Needs; Review: Descrip0on of Design Process •  •  •  •  •  •  •  Phase I: Conceptual Design; Phase II: Embodiment design (Preliminary Design); Phase III: Detailed design; Phase IV: Planning for manufacturing; Phase V: Planning for distribu0on; Phase VI: Planning for use; Phase VII: Planning for re0rement of the products Review: CAE Concurrent Engineering Design for Codes & Standards (surface quality op0miza0on); Design for Codes & Standards What are the different types of codes? Example: What are the different groups of standards? Examples: Design for Codes & Standards Why do companies follow standards? What is the biggest factor in saving? GT: Design Review •  A retrospective study; •  Who should be included in the review team? •  What should be reviewed? Design Review What do we look at in reviews? •  Technical elements; •  Business aspects; Technical elements: Comparison with PDS. Business aspects: What are the considera0ons? What is the review outcome? Redesign •  What is redesign? •  Examples: Redesign Example: Railcar Wheel •  What is the problem? •  What caused the problem? •  Solu0on: Social Considera0on of Design •  ABET statement: •  What are the impacts? –  More lawyers involvement; –  More 0me on planning & predic0on of future effects; –  “Defensive R&D”; –  More R &D, and engineering in environment control and safety; Social Considera0on of Design: Examples Green Design: “Socialware”: Social Considera0on: Government Role •  What is the role of government in technology development? –  –  –  –  –  S0mulus force (How)? Control the growth of the economy (How?) A major customer; A funding source; A regulator of technology implementa0on; Problem Defini0on •  Design process = A filtering process; •  Problem defini0on: –  Most important step in PDP; –  What is the focus? Iden0fy Customer Needs •  Customer = End user? •  Preliminary research on needs: –  What are the methods we can apply? Gather Informa0on from Customers •  How to get inputs from customers? How to Create Customer Survey? •  •  •  •  •  •  •  What is the purpose? How to collect the data? What are the specific informa0on needed? How to design the ques0onnaires? How to arrange the ques0ons, in what order? Pilot test; How to manage the survey? How to evaluate surveys? Ethnographic Studies •  Is survey enough? What is missing? •  What is ethnography? And what is used for in design? Customer Requirements •  Maslow’s hierarchy of human needs Customer Requirements: Different Views Garvin’s Eight Basic Dimensions of Quality Customer Requirements: How to categorize and priori0ze? •  What are the different levels of requirements? Customer Requirements: How to categorize and priori0ze? •  Kano Diagram: •  Results: A more accurately priori0zed list; •  CTQ CRs: ...
View Full Document

Ask a homework question - tutors are online