Thanks you Radu! I know that now. Moverover, I'd like to ask if these Abaqus INP mesh tire can be used in Chrono::GPU with DEM terrain?
Best regards 在2023年6月27日星期二 UTC+8 14:47:01<Radu Serban> 写道： > Alex, > > > > You should be able to model the rover wheel (“tire”) with solid FEA > elements, even using an Abaqus INP file. See demo_FEA_abaqus_wheel > <https://github.com/projectchrono/chrono/blob/main/src/demos/fea/demo_FEA_abaqus_wheel.cpp>. > > > > However, as I said before, these element types are currently *not* > supported in Chrono::FSI, so you will not be able to use it on the > SPHTerrain. > > > > On the other hand, I am working on the vehicle co-simulation module (which > uses a slightly different way of interfacing between an FEA mesh and an SPH > system) and, while it is not my first priority to support tires modeled > with such elements, I will look into that if I have time. Those would be > Chrono::Vehicle tires of type FEATire > <https://github.com/projectchrono/chrono/blob/main/src/chrono_vehicle/wheeled_vehicle/tire/FEATire.cpp> > > which also loads an Abaqus mesh. > > > > To make a long story short, you cannot do what you want right now, but > hopefully sometime not too far in the future. > > > > --Radu > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Alex Lan > > *Sent:* Thursday, June 22, 2023 3:43 PM > *To:* ProjectChrono <[email protected]> > *Subject:* Re: [chrono] FEA tire with FSI > > > > Hi, thanks for all your reply! > > My tire is a self-designed deformable tire like a LRV tire, not a rubber > tire. And I want to test its deformation characteristics on each part > during motion. So I think ANCF shell may not be a good choice. > As Dr. Radu suggested, can I partition my tire into a mesh that supports > FSI to enable simulation using Abaqus? > > > > Best regards. > > 在2023年6月21日星期三 UTC+8 15:23:14<Radu Serban> 写道： > > Alex, > > > > First, a couple of questions: > > - do you model the FEA tire yourself (if yes, what kind of elements?) or > do you use a Chrono::vehicle deformable tire? > > - what does "complex" mean? Profile of the tire or tread pattern? > > > > Currently, Chrono::FSI can only deal with a small number of element types. > I intend to come back to this eventually and extend it to support all FEM > we have in Chrono (but this will not happen in the very near future). In > other words, using directly the FSI module you can right now only use a > tire (or any other flexible object) that is modeled with ANCF shells. > > > > However, we support Chrono::Vehicle FEA tires interacting with any of the > Chrono deformable terrains (including FSI-based) in the vehicle > co-simulation module. This assumes you would be using one of the FEA tires > defined in Chrono::vehicle and not some arbitrary FEA mesh you define > yourself (even if in the "shape" of a tire). > > > > If you are working with a Chrono::vehicle FEA tire (supposedly a ChFEATire > since you said an ANCF shell tire is not good enough for you) using the > co-simulation framework should allow you to do these simulations. > > > > But flexible tires were not yet tested extensively in the co-simulation > framework. Having said that, I am currently revisiting that module and, as > soon as I return from travel next week, I intend to work precisely on > co-simulation of FEA tires. I will be focusing on ChANCFTire and > ChReissnerTire, but will also test ChFEATire. Stay tuned. > > > > > > --Radu > ------------------------------ > > *From:* [email protected] <[email protected]> on behalf > of Alex Lan <[email protected]> > *Sent:* Tuesday, June 20, 2023 12:30:14 PM > > > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] FEA tire with FSI > > > Hi, > > > > I'm trying to simulate wheel-soil interaction using a FEA tire with FSI, > since my tire is complex and not easy to model like a toroidal tire. > However, there isn't a demo of FEA tire interacting with FSI terrain. I > found *AddFEAmeshBCE* is a function that may transfer FEA mesh to BCE > markers, but it seem that only ANCF shells are support, not common FEA > mesh. Is there an approach to implement it? > > > > Thank you all! > > > > > > -- > 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/0ff1a125-4f80-46d5-9cdf-ee2a17558899n%40googlegroups.com > > <https://groups.google.com/d/msgid/projectchrono/0ff1a125-4f80-46d5-9cdf-ee2a17558899n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > -- > 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/8a91eef2-ea21-47b6-a401-a28fcf35e9e2n%40googlegroups.com > > <https://groups.google.com/d/msgid/projectchrono/8a91eef2-ea21-47b6-a401-a28fcf35e9e2n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. 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