Torsional Rigidity with ANSYS

[Cokes]

Hi all,

I have modelled the team chassis using ANSYS 6.0, meshed it and applied loads. However, how can I calculate the torsional rigidity?

Cheers,

Cokes.

[Cokes]

Hi all,

I have modelled the team chassis using ANSYS 6.0, meshed it and applied loads. However, how can I calculate the torsional rigidity?

Cheers,

Cokes.

[dancin stu]

How have you constarined the chassis. In the past, the method I have used, this is for road cars not racecars, is to constrain the cahssis at three damper mounts, using a different number of constarints on each, then applied the force at the fourth mount.

Solving, you will thus get a deflection form a known force, and you also know the distnace over which that force is aplied, distance between the mounts, so you now have enough information to work out the torsional stiffness..........

[Oli]

I am also using ANSYS, but for the analysis of suspension components, in particular the A-arms. Has anybody had success in this area and if so, how did they go about it?
http://fsae.com/groupee_common/emoticons/icon_biggrin.gif

[Kevin Hall]

I modelled our entire chassis in ANSYS 7.0 for senior design. For any tubular members I used beam4 elements, and for composite panels, I used shell91 elements. We tested and got results within 13% max difference. If you have any questions, email me at k_n_h_2_0_8@mail.usask.ca......remove the underscores. I can send snippets of code if you like.

Kevin Hall
University of Saskatchewan
'03-'04 Team Director