Engineering H193 - Team Project Gateway Engineering Education Coalition Modeling By: David Hawn Week...

Engineering H193 - Team Project

Gateway Engineering Education Coalition

Modeling

By: David Hawn

Week 2 Day 3

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

Modeling

• What is a Model?

• Why should your group think about creating a model?

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

Models can be:

• Drawings• Equations• Numerical Simulations• Mock-ups• Prototypes

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

Drawings

• Sketches• CAD Key• AutoCAD• Solidworks• ProEngineer• Inventor

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

Equations

• Graphically• Analytically

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

Numerical Simulations

• MATLAB - Simulink• Maple• Excel• On-purpose software applications

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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

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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

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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

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Engineering H193 - Team Project

Spring Quarter Gateway Engineering Education Coalition

My Model

• Is it a prototype or a mock up?

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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.

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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.

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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.

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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

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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?