Hi Heming, To follow up on Dan's comments. DEMdemo_WheelDPSimplified is one of the DEM-Engine's demos that show mesh/wheel--terrain interaction. The terrain that you'd like to model may be complex and you could benefit from storing the status of the simulation and restarting the simulation, and DEMdemo_GRCPrep_Part1 and 2 showcase that. As for soil particle moisture, you probably need to use your own particle force model, and DEMdemo_Electrostatic is an example. A couple of other interesting custom force model files are in src/kernel/DEMUserScripts.
Also, DEM-Engine is available in Python. Please refer to its README.md document. Thank you, Ruochun On Thursday, August 31, 2023 at 8:33:06 AM UTC-5 Dan Negrut wrote: > Hi Heming, > > This problem is something that we’ve never done in Chrono. In my mind, > it’s a hard problem. It can be done, but it’d take some thinking and > tinkering with the code. > > Your best bet is to use the DEM code ( > https://github.com/projectchrono/DEM-Engine) and rely on the customizable > inter-particle force model that is available therein. In other words, you > can control how two particles in contact interact with each other, that is, > what the interaction force for mutually interacting particle looks like. > That callback function provides an avenue to introduce the particle > moisture in the model. > > You would run, for instance, a tracked vehicle using Chrono::Vehicle and > co-simulate with the DEM code, which runs on the GPU. Which means that if > you pursue this solution, you should have one GPU, and preferably two, > available on your workstation. > > Good luck with your project. > > Dan > > --------------------------------------------- > > Bernard A. and Frances M. Weideman Professor > > NVIDIA CUDA Fellow > > Department of Mechanical Engineering > > Department of Computer Science > > University of Wisconsin - Madison > > 4150ME, 1513 University Avenue > > Madison, WI 53706-1572 > > 608 772 0914 <(608)%20772-0914> > > http://sbel.wisc.edu/ > > http://projectchrono.org/ > > --------------------------------------------- > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Heming Chang > *Sent:* Thursday, August 31, 2023 2:59 AM > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] SMC or NSC > > > > Dear professors, > If I want to study the effect of soil particle moisture content on > the driving performance of tracked vehicles, choose SMC or NSC? How to > choose? Thanks > > -- > 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/1c80e421-f49b-47c5-adfe-1e31f3916c98n%40googlegroups.com > > <https://groups.google.com/d/msgid/projectchrono/1c80e421-f49b-47c5-adfe-1e31f3916c98n%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/16535fda-427c-42d2-a745-e0a4fad1387cn%40googlegroups.com.
