Document Type

Dissertation/Thesis

Date of Degree Completion

Winter 2020

Department

Mechanical Engineering Technology

Committee Chair

Dr. Craig Johnson

Second Committee Member

Dr. John Choi

Third Committee Member

Professor Charles Pringle

Abstract

Central Washington University does not currently have a competition field-able Electrathon America electric vehicle with adequate front suspension. The aim of this project was to provide the vehicle with handling that supports sound ground contact throughout the competition environment. Handling that supports sound ground contact is important for vehicles so they can go around corners without a loss of traction or flipping over. The solution to this engineering problem was designed and tested through various requirements. The requirements at hand were that the suspension components weigh less than 50 pounds, that there be no more than 3 inches of suspension travel, and that the working device must support the overall vehicle weight of 350 pounds. The working device was created through analysis based around these three requirements. For consideration of weight, the a-arm and bottom shock mounts were milled out of billet aluminum, and the top shock mounts were made from angle steel and welded to the frame. The success of the project was dependent on the final performance of the working device. This success was based on the results of testing the working device. Testing showed that the working device weighed 20 pounds, the vehicle had 2.5 inches of suspension travel, and the working device supported the full weight of the vehicle.

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