Date of Completion

5-8-2021

Degree Type

Honors Thesis

Discipline

Mechanical Engineering (MECH)

First Advisor

Dr. Allen Wilson

Abstract

In the ASME Human Powered Vehicle Challenge (HPVC), students design, develop, construct, and test different designs of human-powered vehicles. The design utilizes two wheels, the rear of which is responsible for power transmission from a pedal crank and braking through a disc and caliper. The design also utilizes the front wheel fork wheel for steering. Steering and braking are controlled by two levers on the handlebars. To determine whether the design was sufficient, it was compared to the standards set by ASME, including maximum weight, minimum speed, minimum turning radius, minimum ride distance, load testing, harness verification, and a complete rollover protection system. Assembling the design consisted of welding the unique frame and attaching all parts which includes wheels, gears, chains, a seat, and a harness. Testing the design was done by applying the specified loads after assembly, which was not able to be completed at the time of the report. Speed testing was done by using a GPS spedometer while riding the bike, and the vehicle met speed standards. Testing of the brakes was done similarly and braking distance was measured once the bicycle met the desired speed, which the vehicle passed. Sustained travel testing was done by attempting to ride the bike without assistance, but this failed. All other testing was done by inspection of the vehicle, including turning radius, harness, and proper functioning of the rollover protection system. Overall, the vehicle would have failed to compete in the HPVC due to its inability to travel without assistance.

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