Members: Daniel Houseward, Elijah Jentzen, Scott Mehlberg, Shane Muller, Joseph Flikweert

Outline Project Goals Design Norms Analysis Performed Main Obstacles Major Decisions Future Work

Project Society of Automotive Engineers (SAE) Competition: The Supermileage® competition provides engineering and technology students with a challenging design project that involves the development and construction of a single- person, fuel-efficient vehicle. Vehicles are powered by a small four-cycle engine. The vehicles will run a specified course with the vehicle obtaining the highest combined kilometers per liter (miles per gallon) rating plus design segment points winning the event.

Goals Vehicle will: Achieve 500 mpg Comply with all rules set forth by SAE competition Project will: Raise awareness about fuel efficiency Roll over project

Design Norms Stewardship Use resources efficiently and responsibly Caring Caring for future generations Trust Vehicle must be reliable, dependable and safe Comply with competition rules

Analysis Performed Engine Shell Chassis Design Drive Train

Engine Analysis Hot vapor Preheat fuel from exhaust stream ~7% increase in efficiency Increase compression ratio Larger compression ratios are more efficient: Milling the cylinder head ~5% increase in efficiency

Engine Analysis Overhead camshaft configuration More efficient combustion Engine “breathes” better

Shell Analysis Governing Drag Equation: 15 mph minimum average velocity (V) requirement set forth in competition rules Minimize frontal area (A)

Chassis Analysis Design: Three wheel configuration Power to trailing wheel Aluminum construction EES analysis Roll bar 250lbf requirement Integrate with shell to minimize frontal area

Drive Train Centrifugal clutch Engage within optimal rpm range Gearing 3 gear rear hub Jack Shaft Intermediate gear

Power Train

Major Obstacles Budget Engine Delivery 6-8 weeks as of 11/30/2010 No Experience with competition Time management Need to stick to Gantt chart and critical path.

Future Work FEA analysis of chassis and components January 2011 Build Dynamometer January 2011 Order Components In progress Finalize Design Build and test Spring Semester Compete June 2011

Conclusion Analysis shows that this project is feasible Concern: Budget Time Resources Scope

Questions?