Engineering Design GE121 Introduction to Engineering Design - PowerPoint by thejokerishere

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									                                     Engineering Design
Introduction to Engineering Design




                                                GE121

                                       Introduction to
                                     Engineering Design
                                            (continued)

                                              Lecture 2

                                         GE 121 – Engineering Design - 2009
                                     Assumptions Behind the Engineering Design
                                                    Definition
Introduction to Engineering Design



                                     Design is a thoughtful process that can be
                                      understood
                                       There are tools that can help us support
                                        decision making / design management
                                       Tools add to and support the creative process
                                     We cannot deduce form (shape, geometry) from
                                      function (what artifact is required to do)
                                       Design Specifications help guide us to form,
                                        and are a result of a process. Client Objectives
                                         Means  Functions  Metrics
                                                     GE 121 – Engineering Design - 2009
                                     Assumptions Behind the Engineering Design Definition (cont’d)

                                     Fabrication Specifications (set of plans to
Introduction to Engineering Design



                                      fabricate object / artifact) enable fabrication
                                      independent of designer’s involvement.
                                        Newer design methodologies integrate
                                         fabricators/manufacturers into the design
                                         process (will be discussed later)
                                     Communication is a key issue in design
                                        Some Design Languages
                                           Spoken or written
                                           Numbers / Equations
                                           Rules
                                           Charts or Pictures
                                                        GE 121 – Engineering Design - 2009
                                     More On Design / Engineering Design
Introduction to Engineering Design



                                     Design has been going on for a very, very
                                      long time
                                     People have been talking and writing about
                                      design for a long time, but not nearly as
                                      long as design has been going on
                                       Why design is hard
                                       Suggestions that design is like learning to
                                        dance or ride a bike



                                                     GE 121 – Engineering Design - 2009
                                        Evolution of Design Practice / Thinking
                                     Flint knife
Introduction to Engineering Design



                                        Designing and Making inextricably linked
                                       Must have put thought into process
                                       Trial and error
                                     Great Pyramids, Mayan Temples, Great
                                      Wall of China
                                       Must have been designed
                                       No ‘Paper Trail’
                                     Modern Design
                                       Fabricator typically NOT the designer
                                       ‘Craft’ typically fabricated by designer
                                                     GE 121 – Engineering Design - 2009
                                           Evolution of Engineering Design
Introduction to Engineering Design


                                     Engineers produce Fabrication
                                      Specifications
                                       Separates Designing from Making
                                       Typically blueprints, circuit diagrams, flow
                                        charts
                                       May not capture design intent – Hyatt Regency
                                        walkway (Kansas City)
                                         114 people died
                                         Could not be fabricated as designed (threaded rod
                                          not available on required length)
                                         Like two people hanging on a rope, versus one
                                          person hanging onto another person’s foot
                                                     GE 121 – Engineering Design - 2009
                                     Evolution of Engineering Design (cont’d)
Introduction to Engineering Design




                                                                                     Fig. 1.4 p10


                                                GE 121 – Engineering Design - 2009
                                       Evolution of Engineering Design (cont’d)
Introduction to Engineering Design



                                     New Idea is Concurrent Engineering
                                       Specialists from manufacturing / purchase /
                                        support / use / maintenance (essentially
                                        product life cycle) all considered/consulted
                                        throughout the design process
                                       Communication of design intent is extremely
                                        important, right through to fabrication and life
                                        cycle




                                                    GE 121 – Engineering Design - 2009
                                      A Systems-Oriented Definition of Design
Introduction to Engineering Design


                                     Herbert Simon, a founding father of design
                                      theory – Definition
                                       As an activity, design is intended to produce an
                                        artifice in terms of its organization and functioning –
                                        its interface between inner and outer environments
                                     Designers are expected to:
                                       Describe the shape and configuration of a
                                        device/process/product (organization)
                                       How that device/process/product does what it is
                                        intended to do (function)
                                       How the device/process/product (inner environment)
                                        works (interfaces) within its operating (outer)
                                        environment

                                                      GE 121 – Engineering Design - 2009
                                     Engineering Design Addresses Hard Problems
Introduction to Engineering Design



                                     Design Problems are Ill-Structured
                                       Cannot normally be found by applying
                                        mathematical formulas or algorithms in a
                                        routine or structured way
                                     Design Problems are Open-Ended
                                       Usually have several acceptable solutions
                                       Problem is generally not finding one exact
                                        solution, but having too many solutions from
                                        which to choose


                                                   GE 121 – Engineering Design - 2009
                                               Learning Design By Doing
Introduction to Engineering Design


                                     Learning by Doing
                                     Studio aspect like riding a bike, throwing a ball,
                                      painting or dancing – watch what I do, then try
                                      to do it yourself
                                     Use drills and exercises – that’s what we are
                                      trying to do in this course, and other design
                                      courses that will follow
                                     Rely on coaching – we will try to help you
                                      through the process
                                     Pay attention wherever you can to skilled
                                      practitioners – we have Engineers in
                                      Residence to help us out
                                                     GE 121 – Engineering Design - 2009
                                         Managing Engineering Design
Introduction to Engineering Design


                                     Good Design doesn’t just happen
                                     Management achieves organizational goals by
                                      planning, organizing, leading and controlling
                                       Planning – the process of setting goals and deciding
                                        best how to achieve them
                                       Organizing – the process of allocating and arranging
                                        human and non-human resources so that plans can be
                                        carried out successfully
                                       Leading – ongoing activity of exerting influence and
                                        using power to motivate others to work toward reaching
                                        organizational goals
                                       Controlling – process of monitoring and regulating the
                                        organization’s progress toward achieving goals

                                                      GE 121 – Engineering Design - 2009
                                                         Activity
Introduction to Engineering Design



                                     Take a few minutes to get a copy of your
                                      Project Proposal ready
                                     We will provide more details in the next
                                      section to help you refine it

                                     Note: Epsilon Lab (2A23) is reserved for
                                      our use during class and lab times.



                                                  GE 121 – Engineering Design - 2009

								
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