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     The front suspension is a non-parallel, unequal length, independent a-arm system. It is supported by a push rod to inboard spring/shock system. The front suspension is designed around a 175-pound driver and has a 27 percent wheel rate progression from droop to full bump. The front wheels have 2 inches of travel, one inch up and one inch down. The suspension geometry was designed in a DOS program called Suspension v. 2.0.1. It allowed the design team to determine the roll center and the wheel camber relative the roll angle. The shock/spring system was designed in Working Model 2D, which allowed us to view forces at various places in the system including the force ground exerts on the wheel. The anti-roll system is currently being designed. We are working on a hydraulic/spring or an inert gas system. The gas system would be connected to the front rocker and a stationary point on the chassis. As one wheel goes up, it would compress the gas on the lower end of the other wheel and add lifting force. The pressure of the gas would control the magnitude of the force in the system. The hydraulic system would work the same way except a spring would have to be added to the system to control the pressure in the system. This system will probably not go into production until the year 2001.

     The rear suspension is also a non-parallel, unequal length, independent a-arm system. It is also supported by a push rod to inboard spring/shock system. The rear suspension is designed around a 175-pound driver and has a 17 percent increase in wheel rate from full droop to full bump. The rear wheels have the same travel as the front wheels. We are currently in the testing phases and are not sure if an anti-roll system will be used on the rear. The suspension geometry and shock/spring system was designed using the same method used in the front system.

Programs Used In Design: Working Model 2D, Suspension v. 2.0.1


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