Thank you for offering this excellent cheese, I don't believe the original poster is ready to appreciate such a gourmet experience.Originally posted by Frank:
The following statement applies to a chassis with no torsional stiffness: (case A)...
Nothing to do with FSAE, but here is a successful modern example where soft cheese is a good solution for a small utility vehicle:
http://www.toro.com/grounds/ve...man/micro/index.html
It has a central "twister joint" connecting front and rear frame. The pivot is a long rubber bushing with very low torsional rate (stiff in the other five degrees of freedom). The video linked under "Superior Ride Quality" has terrible marketing-speak in the audio, but does show the frame twist in action.
Bonus points (not for trenchermen) -- what happens when the central pivot is raised or lowered relative to the front and rear chassis sections?