Redesign

The plots are used to display the results of the dynamic analysis of the track. These plots should be used to redesign the geometry of the track, as illustrated here.

• The original dynamic analysis showed a negative velocity, as the car did not have enough speed to negotiate the loop. The radius at the top of the loop was reduced to alleviate this problem.
• The seat force through the corkscrew was too high. The minimum radius was increased in order to lower the centripetal acceleration.
• The increased radius made the corkscrew taller, the result of which was the car's inability to make it through the corkscrew with a positive velocity. The axis tilt was then raised from $-10$ to $-7$ degrees to lower the top of the corkscrew.

Some further changes should still be made to this track. A high seat force acceleration is found at the bottom of the first inversion of the corkscrew. The acceleration at the end of the corkscrew is also rather large. Through the top of the loop, the seat force is too low. Recalling that seat force acceleration values should fall approximately between -2 g's and 3.5 g's^4.1, the geometry of the track should be modified until the accelerations encountered are reasonable throughout the track.

^4.1 See section 1.1.