Except that the link is not free on both ends. Perhaps there is a more collegiately acceptable term that I am mixing up here. Take the same example, but now place the other end on a different immovable wall. You can use rod ends, solid ends, it doesn't matter because at that instant, it is a static system. Place one end of the link higher than the other. Do not allow either end to move vertically up or down, and push the walls together. The force direction will be at an angle relative to the centerline of the tube, and therefore not purely tensile/compressive. Perhaps the "buckling" term is more acceptable?
I really don't mind the tech questions at all, but to state that "all" you wanted was tech info is not true, and to further state that you got "no" tech as a result of your questions is ludicrous. You first sought to discredit myself and my team because don't have "degrees in suspension engineering." Well, last I looked, this was not a discipline that was offered. I doubt very much that you learned everything you needed to apply to real world problems, that is, if you have indeed engineered solutions to problems, I'll assume you have. Let me give an example, the sharpest optical engineer that I ever had work for me never studied optics in school. He received his PhD in Physical Chemistry, and taught himself optics. Smart people can learn beyond what the diploma on their wall suggests they may know. A statement like "you aren't even a suspension engineer, nor an engineer for that matter," would only come from an engineer that feels he/she knows more than anyone that doesn't have a degree. You should be proud that you finished a graduate education, good for you, honestly. A degree doesn't make you able to solve all problems, and not having one (which I do, by the way, in one of the hardest technical disciplines) further doesn't mean that you can't.
I can assure you that not everyone on internet forums "loves" me. Lateral Dynamics was not formed to "make us rich and sell lots of stuff." There are far easier ways to make a lot of money than this business, I can assure you. If I wanted lots of money, I would have stayed in corporate America and sucked up, but that is not something that I am capable of. All we want is to help cool people with cool projects, and have fun with it all, this is pure honesty.
That you won't even tell people your name, what kind of car you have, or anything leads me to believe that you are not an interested customer, and that's fine. Regardless, here are the "numbers."
The most challenging situation is the lowest ride height example, using something similar to the Mule, with a slight rake, this is what we offer. At a 6" rear subframe height, in the "nominal" position for the control arms, the SVSA is 68.5". Anti-squat is 59.8%. Roll steer with the lowest possibly RRCH is 1.03% roll Understeer. In the nominal control arm setting, roll steer range can go as high as just over 6% roll understeer (by raising the RRCH). At this ride height, SVSA can go as high as just over 100", to as short as just over 60". Resultant A/S numbers are 26.5%, and 64.1%, respectively (I over-stated A/S numbers previously by approximately 10%, forgive me).
Again, A/S numbers were derived using a conservative CG of ~19". For more direct comparison withother suppliers, using a 17" CG, the resulting A/S numbers are 65.9%, 29.6%, and 71.6%.
We really would love to meet you, so if you attend the SEMA show, please be sure to stop by and introduce yourself. We will be at booth #52425.
Kind Regards,
Mark
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Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
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