Jason Harris Capstone Design Presentation April 20, 2001

Jason Harris Jason Harris Ben Breazeale Greg Gonzales Jason Molina (Analysis) (Team Leader) (Web/Graphics) (Secretary)

Jason Harris Presentation Outline Introduction & Background Logistics Design Analysis Wrap-up

Jason Harris Sponsored by the Institute for Affordable Transportation (IAT) Performance requirements Cost requirements National competition in Indianapolis May 26th

Jason Harris Requirements The top speed should be 25 mph Carry a four-person load or 770 lbs Minimum range of 120 miles Production version should cost less than $1200 to produce (modified design)

Jason Harris Design and build a working prototype of a BUV Provide a full engineering report Provide CAD drawings and digital video clips of the vehicle to the public Complete a financial analysis A web page that includes all of the above for judging

Jason Harris Focus on the end user Enhance the quality of life for the operator Components should be made from generic steel stock so that the operator can repair it without a parts store. The vehicle should also be made so that other manufacturers can copy it. The goal of this project is to help developing countries.

Jason Molina

W. L. Gore donated steel Facility Services donated a vehicle –Daihatsu C&D Mold, Steel donated Big thanks to Don McCallum

Jason Molina 1981 Daihatsu Hijet Engine: 547 cc, 2 cylinder gasoline Wheelbase: inches Bed: 72 inches Close match to original design

Jason Molina

Greg Gonzales Where we started

Greg Gonzales

What we added

Greg Gonzales

Volume assumption of 100,000 units annually Based on the Daihatsu Chassis and our modification kit Tooling Cost approximately 2.25m Produced in Africa (close to test market Ghana) Purchase Steel from Brazil (low cost) Cost per unit<$1200

Greg Gonzales Vehicle will tip fully loaded at 29 0 Dean’s Spot hehe ;)

Ben Breazeale FEA model: Type: Frame undergoing a large negative acceleration (such as a collision or a fast stop); Static nodal stress. Load: 300 lbs on roof rack Material: 1.5 inch box steel (assumed mild steel 1020), same as the frame material. Yield strength is MPa

Ben Breazeale Case 1: Frame joint Result: Stress of 350 MPa Factor of safety <1

Ben Breazeale Case 2: Frame with gusset plate Result: stress of 180 MPa Factor of safety 1.64

Ben Breazeale Gusset close-up 300 lb load –Moves stress concentration away from the weld

Ben Breazeale

The Dean’s Car…DOH!!

Ben Breazeale Finish Web page by May 4th Compete in the national design competition in May via website Submit design to IAT May 26

Ben Breazeale