Engineering Design

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Engineering Design

• A New Engineering-Technology Module for Creative
  Problem Solving
• Aug 23, 2006
• Revisions 8-24-06

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Engineering is...
the profession in which a knowledge of
mathematics and natural sciences gained by study,
experience, and practice is applied with judgment
to develop ways to utilize, economically, the
materials and forces of nature for the benefit of
mankind." (ABET)
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Fields of Engineering

• Slide-what are some things engineers design (see
  fields of engineering)

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The Rest of Engineering
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Life Cycle of Engineering Designs 1. Needs
analysis 2. Feasibility study 3. Preliminary
design 4. Detailed design 5. Production 6.
Distribution 7. Consumption 8. Retirement
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The Engineering Design Module

• An addition to CETAs web-based H.S. curriculum
• Sponsored by Silicon Valley Engineering Council
• To serve educational partners throughout region
• Based on a workshop designed for the SCVSEFA
• Fulfills need for a problem solving unit to
  enrich all our engineering-technology modules

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Why a Design Module?

• Essential introduction to our curriculum
• Unify engineering processes across modules
• Wide appeal as creative problem-solving process
• Help students comprehend what engineers do and
  whats involved in engineering education

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Purpose and Nature

• Science is the search for knowledge and
  understanding
• Technology is the application of knowledge to
  satisfy human needs
• They are both creative problem solving methods!

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Creative Problem Solving
The crux of the design process is creating a
satisfactory solution to a needusing knowledge
and know-how to achieve a desired outcome.
Designing is problem solving. It is creative
problem solving. L. Harrisberger

• Students will apply the engineering design
  process in all projects they do to develop a
  fundamental engineering (and life) skill. . .
  creative problem
  solving!

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Seeking alternatives The creative process

• generate a unique, custom-made solution "from
  scratch,"
• find an "off-the-shelf" solution that someone
  else has used to solve a similar problem, or
• find a bunch of existing stuff, combine it, and
  adapt it.
• A good design engineer will explore all three and
  show the clients what they would get and what it
  would cost to go with each of these three.

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Module Objectives Follow California Technology
Education Standards.

• Understand steps in the design process
• Translate word problems into mathematics
• Determine what information is relevant
• Choose among alternative solutions
• Build prototype and test it
• Improve design from test results

California Career Technical Education Model
Curriculum Standards  http//www.cde.ca.gov/ci/ct/
sf/
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Organization

• Uses the CETA 6x5 module design
• Lectures cover design process steps
• Varied and stimulating design exercises
• Frequent Design Challenges as grabbers
• e.g., design a boat out of aluminum foil
• Comprehensive, 6-week design project
• Many choices depending on class needs
• Student teams present completed design

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Module Development CriteriaBackup Slide

• Ninth-grade level
• CETA curriculum model
• Six-week module, web-based
• 40 theory, 60 lab, assessment
• Standards-based
• Consistent with ABET definitions
• Minimum/no cost to schools

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Module Outline

• Present design steps over six-weeks
• Student (teams) design and build tangible product
• e.g., for a competition
• Project management skills emphasized
• Topical lessons on
• Concurrent engineering
• Product life cycles
• Careers and education
• Ethics
• Communication

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Module Organization The Design Process

• Identify a need, who is the customer
• Establish design criteria and constraints
• Evaluate alternatives (systems or components)
• Build a prototype
• Test/evaluate prototype against criteria
• Analyze, tweak (?), redesign (?), retest
• Document specifications, drawings to build

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Engineering Design ProcessBackup Chart

• Identify a need
• Establish design criteria and constraints
• Evaluate alternatives
• Build prototype
• Test/evaluate against design criteria
• Analyze, redesign, retest
• Communicate the design

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Design Project Alternatives

• Web-provided and teacher-planned design projects
• Prospective Science-Engineering Fair entries
• Local or National Robotics competitions
• LEGOs construction projects
• Discover E and E-Week exhibitions
• Bridge-building (from Civil Engineering)
• Trebuchets (from Mechanical Structures)
• Professional Associations Outreach (e.g., ASME)

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Problem Solving

• Use the design process in all projects you do to
  reinforce one of the fundamental disciplines in
  engineering and indeed, of creative problem
  solving.

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Student Learning Objectives

• Student Learning Objectives
• Students should be able to
• 3a.) Develop a flow chart of, and describe, the
  design process.
• 3b.) Translate a real world problem / need into
  practical (engineering) terms
• (i.e., specify design requirements and
  constraints).
• 3c.) Develop criteria for evaluation (i.e., how
  do you select the best concept
• among several that meet all design requirements
  and constraints?).
• 3d.) Search for, and study existing solutions
  3e.) Look for, and analyze alternative
  solutions.
• 3f.) Make decisions considering the trade-offs
  among the various solutions.
• 3g.) Develop final specifications.
• 3h.) Communicate the results orally and in
  writing.