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Exactly, this is the problem.

Magnets. Use magnets. No friction.

You're stepping into uncharted territory here shanchan. I doubt anyone has tried something like this before, there's certainly no way the forum search function could help you with this. Looks like...

Try again...

Well, I'm not sure how you get results in only one plane (or if I'm understanding your problem correctly). Are you using HyperView for results? You shouyld be able to open up the session file...

You have constraints applied to the end(s) of your rigid spider(s). Since those nodes have movement defined by both the movement of the independent node in the rigid spider and the SPC constraint,...

Your information issues are because you likely have RBE2's with all 6 DOF attached to solid elements that only have 3 DOF's. This won't cause any issues, but you could fix it by removing the DOF's...

Is this a joke? If not, then the only joke here is you Chris... You haven't presented any information that could be convincing. You came to "sort out the misconceptions" by doing what, presenting...

Yes.

I have not used Ansys, but have gotten realistic and useful thermal results out of many other programs. It's not the software you're using that determines whether you can get realistic results, it's...

Why didn't you start your original post with this rather than just asking for an answer? That's the reason you get smart ass replies (like mine)rather than useful information. At least now you've...

SK!! 3/16" OD tube with a .250" wall is pretty common. I would just skip the calculations and go with that.

Combine some assumptions, a free body diagram, and some math.

No, not 6.33, 6.33333!

6.33333

I don't know Pat personally and have never met him, but I do know that he has put forth years of hard work and an incredible amount of time and effort to help FSAE grow, and more importantly help the...

This is a far more practical thing than theoretical; there are no equations to solve that tell you whether you need a chain tensioner or not.

You certainly need either a tensioner (roller,...

Wrong. Google says the centre of gravity "has closed or relocated".

Have you tried putting the spring center in the middle?

Try converting everything to a real unit system and re-doing your calculations. Your final rate will depend on many factors, there is no one solution.

Constraining both rear uprights in all 6 DOF's will over-constrain the system. You are introducing artificial stiffness into the chassis that away. Look for a way to constrain the chassis such that...

35, 1.2, 6, and no respectively.

Hi Gavin,

Shoot me an email and I'll reply with a .hm file so you can check out how I did the rocker.

billy(at)luxonengineering(dot)com

Yes, I have done it before. You can create a linkage mechanism with a combination of rods, beams, and RBE2's. For the beams, you will likely need to create some coordinate systems to assign to the...

Are you getting free 1D's because you have two or more nodes that should be connected (i.e. one right on top of another), or is it for some other reason? If the former, you need to equivalence the...