From the course: Autodesk Nastran In-CAD: Dynamic Analysis
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Base motion example in FR - Nastran In-CAD Tutorial
From the course: Autodesk Nastran In-CAD: Dynamic Analysis
Base motion example in FR
- [Instructor] In this video, we're going to look at frequency response with base motion and also the use of the modal database, so we go and locate the file to open which is our plate_modes. The first thing I want to once it's open is to locate a new area to save this off in, this is going to be my work area to run the analysis. So, I'm going to rename this as plate_mass_frequency response and I've been kicked out of the environment, so go back in, back in to Autodesk Nastran In-CAD. I can see the tree view and it's a normal modes analysis. So, to the normal modes analysis, I'm just going to add some concentrated masses. I've worked out what the mass of these equivalent to one pound weight is, paste that it. So, positions of mass are going to be on the corner here, you see the icons appearing. To reduce the size of those, click OK. That's everything I need, just check the number of modes, 10 modes. I'm going to store this into Modal Database. I can locate the path of that Modal…
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