Improved design of a certaintype GO-Kart of 250 ml discharge

XV Zhen-yu1, CHEN Yi-shuai2
（1. School of Mechincal and Electrical Engineering, Jinhua College of Professional and Technology,
 Jinhua 321017, China; 2. Zhejiang Kandi Vehicles Co. Ltd., Jinhua 321017, China)

Abstract: In order to solve the problems of poor stability on rugged roads during high-speed driving, as well as poor damping performance of the most popular Kart (displacement: 250 ml), the following areas were investigated: the double-arm front wheel suspension design of luxury sedans was integrated into the Kart. The past situation of relying solely on the rear wheel damping was changed. And the rear suspension was redesigned with the overall bridge structure. After the tests of the front and rear suspension damper rate, the equivalent stiffness, and the overall roll angle suspension stiffness, the method of combining computer three-dimensional design, trial-manufacture and tests was presented. The absorbers damping, suspension equivalent stiffness and overall roll angle suspension stiffness before and after design improvement were evaluated, and the finished trial-manufactured Kart was tested on the road. The experimental results show that the stability and smoothness of the Kart had been greatly enhanced when it is on rough roads.
Key words: GO-KART; 3D design; swing arm