Document Type

Undergraduate Project

Date of Degree Completion

Spring 2023

Degree Name

Bachelor of Science

Department

Engineering Technology

Committee Chair

Dr. John Choi

Second Committee Member

Charles Pringle, PE

Abstract

Students’ objective this quarter was to design a remote-controlled vehicle that utilizes a 4-link rear suspension, an I-beam front suspension, the ability to withstand a substantial front impact and several gearing options. The team also used several agreed upon design requirements to quantify the results of the objective.

To meet these objectives students followed a strict engineering method. Students split into a team’s divided the work into two sections. Max was responsible for the suspension and steering and Nathan was responsible for the chassis and drivetrain. Methods included engineering analysis which used mechanics of materials, static analysis, dynamic analysis, and mechanical design. Students used these methods to make effective designs using green sheet analysis. This allowed students to confidently manufacture designs knowing that the components would be strong enough for specified design requirements. Methods continued into winter quarter when students began manufacturing. Manufacturing methods included 3D printing, CNC machining and 2D sheet-metal.

These actions resulted in a functioning vehicle at the beginning of spring quarter. The vehicle was successful in completing design requirements including a deflection of less than 15mm after a 15lb frontal impact. The vehicle was found to have 9mm of deflection 60% of the requirement. The vehicle also had the option of a 9:1, 12.8:1 and 11:1 gear ratio with no modifications using it’s adjustable geartrain. The vehicle met the expectations of the previous objective as well as met the design requirements generated in fall quarter. Students competed in the RC baja competition in April 2023.

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