I'm performing a LINEAR analysis of a full Tractor-Trailer model, which is generating many frequencies/mode shapes. I was hoping to mathematically assess these modes shapes instead of visually inspecting each one.
On the FEA side, I would look at the modal participation in each direction for each mode to do this, where say the mode with the highest vertical content would likely be the bounce mode, etc.
I figured out how to write out the kinetic energy table to a text file, but am wondering if this is the right way to go. After an initial look at this data it seems right/logical, but I wanted to hear other opinions or ways to get there.
Hi- modal kinetic energy is a great way to see which 'masses' are moving a lot, or lots of masses moving a little. It is ONE tool to help understand the modes. Another tool is Modal Effective Mass. This is turned on with the MEFFMASS case control command. Take a look at this webinar for good dynamics check out tools:
Hi- modal kinetic energy is a great way to see which 'masses' are moving a lot, or lots of masses moving a little. It is ONE tool to help understand the modes. Another tool is Modal Effective Mass. This is turned on with the MEFFMASS case control command. Take a look at this webinar for good dynamics check out tools: