Hello,
I would like to study the interactions between a tire and various terrain obstacles while the vehicle is in motion. I saw that several tire models are available, such as TMeasy, Pacejka02, ANCF, and Reissner. According to the documentation, force-based tire models (e.g., Pac02, TMeasy) cannot be used with soft obstacles or deformable terrain (such as sand, snow, or grass). On the other hand, the ANCF tire model is specifically designed to accurately capture soil–tire interactions. Therefore, for my use case, the ANCF tire model seems to be the most appropriate choice. I tried using it with the demo script demo_VEH_SCMTerrain_WheeledVehicle.cpp, but after just a few milliseconds of simulation, the tire explodes, and the simulation is extremely slow (even with SetNumThreads set to the maximum number of available threads). I’m wondering if anyone has successfully run the ANCF tire model with the HMMWV (or other vehicles) in a simulation that utilizes hardware resources efficiently (CPU, GPU, etc.). Thank you for your help! 😊 Le jeudi 31 juillet 2025 à 19:43:55 UTC+2, Dan Negrut a écrit : > Hi there - can you please describe what you try to accomplish? > > We might be able to help with the ANCF tire model, but before that, please > tell us what you want to accomplish since there might be easier paths > forward. ANCF is heavy duty. > > 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 *juju > *Sent:* Thursday, July 31, 2025 11:41 AM > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] HMMWV with ANCF tire > > > > Good morning, > > I am a PhD student working on off-road vehicle navigation, and I found > ProjectChrono very interesting for testing my algorithms. > > I would like to use the HMMWV vehicle with ANCF tires for more realistic > behavior. However, when I run the demo script > demo_VEH_SCMTerrain_WheeledVehicle.cpp with TireType::FEA, the simulation > becomes unstable and extremely slow. It runs fine with other tire types. > > Does anyone have a demo script using HMMWV with ANCF tires that is both > stable and performs well (accelerated and reliable)? > > Thank you very much! > > -- > 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 visit > https://groups.google.com/d/msgid/projectchrono/18ae5673-3e2f-40fe-80a4-ceac72d16a63n%40googlegroups.com > > <https://urldefense.com/v3/__https:/groups.google.com/d/msgid/projectchrono/18ae5673-3e2f-40fe-80a4-ceac72d16a63n*40googlegroups.com?utm_medium=email&utm_source=footer__;JQ!!Mak6IKo!JNvqHAR3wRVRusJdp9o7q-21GOJFi79d_DrmD3hkYcRW_7Zt7MXQJVR3DC8iuN4-hzbB98xTJXyflWry$> > . > -- 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 visit https://groups.google.com/d/msgid/projectchrono/c1db45a5-6d82-49bd-b5b1-d771300481d6n%40googlegroups.com.
