College - Author 1
College of Engineering
Department - Author 1
Mechanical Engineering Department
Degree Name - Author 1
BS in Mechanical Engineering
College - Author 2
College of Engineering
Department - Author 2
Mechanical Engineering Department
Degree - Author 2
BS in Mechanical Engineering
College - Author 3
College of Engineering
Department - Author 3
Mechanical Engineering Department
Degree - Author 3
BS in Mechanical Engineering
College - Author 4
College of Engineering
Department - Author 4
Mechanical Engineering Department
Degree - Author 4
BS in Mechanical Engineering
Date
5-2024
Primary Advisor
John Fabijanic, College of Engineering, Mechanical Engineering Department
Abstract/Summary
In this Final Design Review, the Cal Poly Fluid Power Vehicle Team competed in Norgren’s 2024 Fluid Power Vehicle Challenge. The design need of the competition was for college teams to compete with human-powered, hydraulic-driven vehicles in an endurance race, a sprint race, an efficiency race, and a regenerative power race. The competition need was to design a vehicle to win in as many races as possible, achieving the highest overall score and winning the competition. With a design emphasis on the endurance and sprint race, the Cal Poly team designed a fluid power system that fastened to a purchased tricycle. The tricycle converted mechanical rotational power to fluid power that could be stored, released, or directly used at a rear-driven wheel using a mechatronics control system. The best results achieved during testing and competition were a 10:49 mile time (testing), 86 ft distance traveled on regenerated power collected from a 100ft deacceleration (competition), a 22% vehicle efficiency (competition), and a 39 second sprint time to cover 500 ft (testing). The rear chain fell off and eventually snapped during the competition, preventing the team from achieving high marks in the sprint and endurance race, but the vehicle performed 4th in the efficiency race and 5th in the regen race. A major takeaway from the competition was that a purchased frame build was the best design direction to focus on the hydraulic and pneumatic system implementation. The two major recommendations for next year’s vehicle design using the same platform are an improved mechatronics system that efficiently switches between drive modes and a rear chain tensioner to prevent the chain from skipping teeth and falling off.
URL: https://digitalcommons.calpoly.edu/mesp/791
Included in
Electro-Mechanical Systems Commons, Energy Systems Commons, Engineering Mechanics Commons, Other Mechanical Engineering Commons