POL-X West, Inc.
Engineering Services for the
Transportation & Amusement Ride Industries
Knotts
Berry Farm Roller Coaster, Togo International
This review included Finite Element Analysis, using
ALGOR, of several roller coaster components to identify high stress areas,
correlate results with cracks experienced on the actual ride, and recommend
corrective action. Based on the computer results, several simple
modifications were recommended which reduced the stresses well below the
appropriate limits for infinite fatigue life.
The figure shown here is a stress output from one
load case of the carrier chassis analysis. Yellow and red areas show high
stress while blue and purple areas are low stress. Modifications were
later added to the model which reduced the stress values in the areas shown
here as red and yellow.

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