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.
Piezoelectric beam - Unsymmetrical displacement
Posted 07.08.2014, 23:57 GMT-4 MEMS & Nanotechnology, Piezoelectric Devices, MEMS & Piezoelectric Devices 0 Replies
Please login with a confirmed email address before reporting spam
I work on the piezoelectric energy harvester. I use doubly clamped structure with proof mass at the center. Though the beam structure is symmetrical, when Eigen frequency analysis is performed the output is unsymmetrical. Also I dont see any meshing convergence, when I increase the mesh size the results are very different with each other. Kindly help out which is overlooked. Thank you.
PS: I use Aluminum Nitride as Piezoelectric layer (c-axis oriented and spontaneously polarized). I use d31 mode believing the default axis is z-axis oriented.
Hello Rajasekaran Ganeshkumar
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.