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Developing Models and Prototypes (Steps and Decision Making)

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Chapter 6 Developing Models and Prototypes (Steps and Decision Making) * * Chapter s Sections Value of Modeling Selecting Modeling Process Performing Design ... – PowerPoint PPT presentation

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Title: Developing Models and Prototypes (Steps and Decision Making)


1
Chapter 6
  • Developing Models and Prototypes (Steps and
    Decision Making)

2
Chapters Sections
  • Value of Modeling
  • Selecting Modeling Process
  • Performing Design Analysis
  • Testing and Reviewing a Design

3
Why Engineers Use Modeling?
  • To develop a better understanding of the design
    problem/possible solution
  • To save time and money
  • To reach an optimal working solution by refining
    design ideas
  • To convey ideas and information

4
What are the modeling steps?
  1. Selecting a modeling process
  2. Performing design analysis of aspects and parts
  3. Performing integration testing
  4. Revising, refining and critiquing the design

5
6.1 Selecting a Modeling Process
  • Descriptive models sketches models
  • Predictive models maths logic
  • Scale models
  • Geometrical modeling
  • wireframe model
  • surface model
  • solid models model
  • Mathematical modeling
  • Computer simulation
  • Computer animation

6
Scale Model Examples
7
Geometrical Model Examples
8
Mathematical Model Example
9
Computer Simulation Example
10
Computer Animation Example
11
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12
6.2 Performing Design Analysis
  • Evaluating the sufficiency of a design
  • for Autonomous Robot
  • Overall algorithm can be simulated
  • Body must be rigid and maneuverable
  • Various functionalities must be tested
  • Speed of robot must satisfy constraint
  • Functionality of sensors relative to detectable
    objects
  • Recovery from errors must be investigated

13
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14
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15
6.3 Testing The Overall Design
  • Testing the integrated overall design
  • Making sure that all parts work together
  • Then ..

6.4 Revising, Refining and Critiquing The
Design
  • By someone other than the original designer
  • To avoid ..
  • This is my baby syndrome!

16
In Summary
  • Modeling is a valuable pursuit that allows all
    kinds of analyses (e.g. functional, aesthetic,
    financial)
  • Various parts and aspects of a design can be
    modeled, for
  • the purpose of improving and optimizing the
    design.
  • Integration testing must not be overlooked.
  • Its best if the task of designing and of
    critiquing are separated
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