Engineering H193 - Team Project
Gateway Engineering Education Coalition
Modeling
By: David Hawn
Week 2 Day 3
P. 2
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Modeling
• What is a Model?
• Why should your group think about creating a model?
P. 3
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Models can be:
• Drawings• Equations• Numerical Simulations• Mock-ups• Prototypes
P. 4
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Drawings
• Sketches• CAD Key• AutoCAD• Solidworks• ProEngineer• Inventor
P. 5
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Equations
• Graphically• Analytically
P. 6
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Numerical Simulations
• MATLAB - Simulink• Maple• Excel• On-purpose software applications
P. 7
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Mock-ups
• A physical model of an idea to show the spatial relationship of parts.
• Not fully functional• Not necessarily to scale• Not necessarily fully complete
P. 8
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Prototypes
• The first fully functional and full scale representation of a design.
-Tools and Tactics of Design
P. 9
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Purpose of Modeling
• Gives you the ability to test, prove, and (sometimes) disprove the feasibility of ideas
• Better understand the problem• Refine your concept• Prove to yourself and your group that an idea will
work• Fewer mistakes later• Helps avoid wasting time and money
P. 10
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
My Model
• Is it a prototype or a mock up?
P. 11
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Part Mock-up - Part Prototype
• Only the pickup mechanism was completely prototyped.
• The Mock-up / Prototype was continuously revised until the final working model was completed.
• The Mock-up / Prototype was produced using cheap materials that were quickly and easily modified and changed.
P. 12
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Parts and Materials
• Two primary sources of parts and materials for most projects:
– Parts can be purchased commercially – Someone within your group can design and
manufacture them.
P. 13
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Purchased Parts
• Parts can be found at Wal-Mart, craft shops, bike shops, flea-markets, hardware stores, FEH store, the kitchen cabinet, from your closet . . . .
• Purchased parts can be used for a purpose other than what they were originally manufactured for, or they can be modified.
• Purchased parts can easily be replaced.
P. 14
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Manufactured Parts
• Likely will take more time• Can more specifically meet your needs• Difficult to replace• Can require a great deal of technical skill• Can be much cheaper than purchased parts
P. 15
Engineering H193 - Team Project
Spring Quarter Gateway Engineering Education Coalition
Examples of Materials for Mock-ups and Prototypes
• Erector Sets• Legos• Popsicle sticks• Welding rod / coat hangers• Cardboard• Hot glue• Solder
Engineering H193 - Team Project
Gateway Engineering Education Coalition
Questions?