Document Type

Undergraduate Project

Date of Degree Completion

Spring 2024

Degree Name

Bachelor of Science

Department

Engineering Technology

Committee Chair

Charles Pringle, PE

Second Committee Member

Dr. John Choi

Third Committee Member

Mr. Chris Berkshire

Abstract

The objective of this project is to design and construct a vehicle that will compete in the RC Baja Competition. As this project will be split between two students, this paper will be focusing on suspension and steering while the partner will focus on chassis and drivetrain. The vehicle will be tested in three different categories: the sprint, the slalom, and the Baja. These categories will test its speed, turning capabilities, and its overall capability in rough terrain.

As this paper focuses on the suspension and steering. Several analyses and decision matrix were used to find the best dimension along with material needed for the structural components. The Baja will test the vehicle’s capability in handling stress along with finding the necessary suspension and turning radius.

To ensure success in the sprint portion, the vehicle deviates less than 5 inches when driving for 50 feet. To give a competitive edge in the slalom the vehicle has a turn radius of 10 inches. Finally, the wishbones have been tested in deflection and buckling capabilities. The wishbones will not buckle under a 75 lb. axial load, nor deflect more than 0.2 inches (5mm) under a 25 lb. perpendicular load. Furthermore, the vehicle can be dropped at 3 feet with the springs only compressing 1 inch. All of this ensures the vehicle will have the capability to survive the rough terrain in the Baja competition.

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