Hello, The cube itself has a mass of .281 grams, thus the moment of inertia is around .1 g, though I'm not sure if mass plays a role in the flipping or not. If I'm understanding this correctly, could I just settle the bed, and just drag the cube across the bed without dropping it so long as I set it's initial position to be right on the bed? Or would I use the queries from the Chrono bodies and position my mesh accordingly? On Wednesday, November 30, 2022 at 4:30:52 PM UTC-7 Ruochun Zhang wrote:
> Hi, > > Right now, Chrono::GPU does not checkpoint meshes or boundaries for a set > of reasons. But since you know the position of your mesh from querying the > Chrono bodies, you can restart the simulation using that information. > > For the mesh flipping issue, I can hardly believe a 600g object that is > several centimeters' wide has a moment of inertia of around 0.1 g·cm². > > Ruochun > > On Wednesday, November 30, 2022 at 4:55:23 PM UTC-6 Jack Stephenson wrote: > >> Hello team, >> >> I am attempting to run a three-part sim where I settle the bed, drop the >> mesh, and linearly drag the mesh across the x-axis of the bed. >> >> I'm splitting the sim into three parts because I'm applying two different >> mesh motions at different times, and it was pretty difficult for me to know >> when to apply one mesh motion over the other. However, I'm trying to find a >> way to get the saved info of the mesh from the checkpoint file and use that >> info for the third sim. But looking at one of the demo sims, I have to >> manually set the boundaries and mesh again. >> >> My mesh is also flipping on the bed, but I know the inertia is correct >> because I did check solid works and got the right ones. I made the cube >> mass different than the one calculated as I need to run this sim with a few >> parameters fixed. But I'm not sure if it's due to some other factors. >> >> Here's my code and some visualizations. >> >> >> -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/67150d7d-5023-49d6-9975-e42ab4cf5bd3n%40googlegroups.com.
