Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Boundary conditions piston with membrane
Posted Feb 11, 2020, 5:41 a.m. EST Structural & Acoustics, Structural Mechanics Version 5.5 0 Replies
Please login with a confirmed email address before reporting spam
Hello everyobdy and thanks to those who will help me! I want to model the following system: a piston wrapped in a toroidal membrane. The external boundary of the toroid must be fixed, while the internal one must connected to the piston so that when the piston is moved (horizontally, vertically or rotating) the membrane is tensioned and deformed. I tried to use physics "Membrane" for the toroid but this carries out very strange behaviour so I'm handling it as simple "Solid Mechanics". How can I fix the toroid to the piston? I used "Rigid Connector" but problem is that all the toroid/membrane moves with the piston while I just want the internal boundary moves with it. Moreover, even if I fix the external boundary, it slides along the vertical so membrane does not deform. If anyone could help me, I would appreciate it very much. Thank you! Stefano
Attachments:
Hello Stefano Bottero
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.