Upload
percival-cunningham
View
213
Download
0
Tags:
Embed Size (px)
Citation preview
The Design ProcessThe Design Process
© Leon Grant 2003© Leon Grant 2003Used with expressed consent from
copyright holder for CTAE Resource Network purposes.
Benefits of a Design ProjectBenefits of a Design Project Develop higher order thinking skillsDevelop higher order thinking skills Exposure to a formal design processExposure to a formal design process Interdisciplinary ConnectionsInterdisciplinary Connections
• Geometry, Trigonometry & StatisticsGeometry, Trigonometry & Statistics• Physics & Physical SciencePhysics & Physical Science• Model BuildingModel Building• Research, Writing & Oral PresentationResearch, Writing & Oral Presentation• Team Work & Problem Solving SkillsTeam Work & Problem Solving Skills
Discovery Based LearningDiscovery Based Learning Multiple Learning ModesMultiple Learning Modes Relevant Learning ExperienceRelevant Learning Experience
The Design ProcessThe Design Process
1.1. Problem definitionProblem definition2.2. Research and Research and
investigate the investigate the problemproblem
3.3. Develop possible Develop possible solutionssolutions
4.4. Choosing the best Choosing the best solutionsolution
5.5. Developmental workDevelopmental work6.6. Build a prototypeBuild a prototype7.7. Test and evaluate Test and evaluate
the prototypethe prototype
Request For Proposal (RFP)Request For Proposal (RFP)
Students will be given a request for Students will be given a request for proposal handout. The handout will proposal handout. The handout will include the following:include the following:
• Client Design Problem OverviewClient Design Problem Overview• Client Design ConstraintsClient Design Constraints• Clients Proposed Project ScheduleClients Proposed Project Schedule
Problem DefinitionProblem Definition
A well defined problem…A well defined problem… Adequately defines the problemAdequately defines the problem Establishes agreement between client Establishes agreement between client
& engineer& engineerA poorly defined problemA poorly defined problem promotes ambiguous solutionspromotes ambiguous solutionsGood Design constraintsGood Design constraints Sets limitsSets limits Establishes a framework for the Establishes a framework for the
problemproblem Can serve as legal criteria for fulfilling Can serve as legal criteria for fulfilling
contractual obligationscontractual obligations
Contract ProposalContract Proposal Rewrite the design problem in Rewrite the design problem in
your own words. Be as descriptive your own words. Be as descriptive as possible.as possible.
Develop a detailed list of design Develop a detailed list of design constraints (a partial list will be constraints (a partial list will be provided) provided)
Sketch a diagram or illustrations Sketch a diagram or illustrations to define the problem. to define the problem.
Clarify your understanding of the Clarify your understanding of the problem through dialog with the problem through dialog with the client (teacher) & research.client (teacher) & research.
Have client & engineer come to Have client & engineer come to an agreement & sign proposalan agreement & sign proposal
Step 2 - Research and Investigate Step 2 - Research and Investigate The ProblemThe Problem
Use web diagram to identify major design component obstacles
Research & evaluate past solutions
Research each design component
Web of Design ChallengesWeb of Design Challenges
SummaryOf Existing
Designs
AvailableManufacturing
Processes
AvailableMaterials
ErgonomicGuidelines& DesignStandards
US K-12 Population
Anthropometricdata
NewSchool Desk
Design
Research Sources Research Sources Technical JournalsTechnical Journals Technical SocietiesTechnical Societies Research UniversityResearch University Corporate R&D LabsCorporate R&D Labs ERIC &Galileo ERIC &Galileo
DatabaseDatabase Reverse EngineeringReverse Engineering Product/Sales Product/Sales
EngineersEngineers Product catalogsProduct catalogs Federal & Local Federal & Local
Guidelines & Design Guidelines & Design standardsstandards
Step 3 – Create Possible SolutionsStep 3 – Create Possible Solutions
Members work independently Members work independently and develop at least 2-3 and develop at least 2-3 possible solutions (w/ sketch).possible solutions (w/ sketch).
Brainstorm & Collaborate as a Brainstorm & Collaborate as a group and develop at least 5 group and develop at least 5 possible solutions.possible solutions.
Make a labeled Make a labeled sketch/diagram of each sketch/diagram of each solution.solution.
Write a brief description of Write a brief description of how each solution works.how each solution works.
Create Possible SolutionsCreate Possible Solutions
Step 4 - Pick the Best SolutionStep 4 - Pick the Best Solution
Use the Use the design analysis worksheet to to objectively select the objectively select the best designbest design
Select the top 5 design Select the top 5 design constraints & weigh each constraints & weigh each constraint.constraint.
Analyze each design Analyze each design based on the selected based on the selected constraints.constraints.
Select the best designSelect the best design
Step 5 Analysis/Developmental Step 5 Analysis/Developmental WorkWork
Perform any calculations or Perform any calculations or engineering analysis engineering analysis needed for the design needed for the design (show work).(show work).
Construct any test models.Construct any test models. Develop detailed drawings, Develop detailed drawings,
assembly drawings and assembly drawings and schematics.schematics.
Step 6 - Build a PrototypeStep 6 - Build a Prototype
Students use the K’nex Students use the K’nex and other resource and other resource materials to build a materials to build a prototype of their prototype of their
design.design.
Step 7 - Test and Evaluate the Step 7 - Test and Evaluate the PrototypePrototype
Perform tests and Perform tests and evaluations on prototype. evaluations on prototype.
Develop a list of design Develop a list of design changes for and rationale for changes for and rationale for the changes the changes
Make changes and repeat Make changes and repeat test to validate test to validate modificationsmodifications
Student PresentationsStudent Presentations
Students will present their Students will present their designs.designs.• A Summary of their Product A Summary of their Product
Development (design cycle)Development (design cycle)• Technical overviewTechnical overview• DemonstrationDemonstration• Analysis of prototype’s Analysis of prototype’s
performance compared to performance compared to the design criteriathe design criteria
• Recommendations for Recommendations for future modificationsfuture modifications
Design CompetitionDesign Competition
Perform head to Perform head to head prototype head prototype competitioncompetition
Award a winnerAward a winner Celebrate the Celebrate the
group’s group’s achievementachievement