Off Track - Frame and Suspension Tuning (FAST)

Paper #:
  • 942535

Published:
  • 1994-12-01
Citation:
Bradley, L. and Carpenter, M., "Off Track - Frame and Suspension Tuning (FAST)," SAE Technical Paper 942535, 1994, https://doi.org/10.4271/942535.
Pages:
4
Abstract:
Through Frame and Suspension Tuning (FAST) you can identify suspension and frame Set-ups in the lab with out risk to the car or driver. For on track verification the number of Set-ups can be reduced from an unlimited number to 2 or 3 and then optimized on the track, rather than developed on the track. This method can be used with all forms of racing. It has been applied to Indy, GT, Winston Cup, and Trans Am cars.Through the use of a road simulator we are able to evaluate and improve the frame and suspension dynamics in a laboratory. This paper will focus on the first step in the tuning process, frame tuning. If the frame is not tuned for the input energy conditions it can become an uncontrolled suspension component. The first step is to identify the frame dynamic characteristics. Operational deform shapes are measured to identify local and global motion. The frames are modified to optimize the response for the type of race track. After the frame dynamics are acceptable for the type of input energy, the suspension components can be tuned for optimal performance.
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