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Showing results for tags 'hourglass'.
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Hello everyone, As we all know, hourglass energy is not a physical energy and should be small. However, in my simulation, the hourglass energy was found to be large (figure as follow). So how to decrease the hourglass energy? Which options and parameters should I use? By the way, what's the possible reason for the dropping of total energy? Best Wishes Roy
I am running an impact simulation and i want to plot the energy of the system and its components (strain, translational kinetic, rotational kinetic, hourglass, etc). I am using radioss block as the solver. So far i have managed to find how to do it for individual elements but not for parts or globally (system). My question is the following. Do i need to specify some kind of output request for that cause or is it done automatically and available somewhere in Hyperview? To get a sense of what i want to plot i am attaching an image from the pipe impact tutorial. The plot on the bottom of the image is what i want to have. (http://www.altairhyperworks.com/hwhelp/Altair/hw12.0/help/hwsolvers/rd3520.htm) Thanks for your time.
Hi there, I'm having some issues with increasing values of hourglass energy. I'm conducting a 3-point bending impact simulation and every time I apply a non uniform mesh to the beam (more refined at the impact area) hourglass energy increases abruptly during initial impact. Any help on how to control this phenomenon? Thanks,