Hi Stefan – here’s an example of real-time simulation using Chrono: https://thelastgarage.com/ . Disclaimer: the link above is not to a “one afternoon” project, but what you want is very likely possible. As about your three questions, I would start with the defaults in Chrono and then tweak the model parameters to get the level of performance you need. 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 http://sbel.wisc.edu/ http://projectchrono.org/ ---------------------------------------------
From: projectchrono@googlegroups.com <projectchrono@googlegroups.com> On Behalf Of Stefan Oberpeilsteiner Sent: Friday, July 25, 2025 5:08 AM To: ProjectChrono <projectchrono@googlegroups.com> Subject: [chrono] Real-Time Capability of Rigid Body Vehicle Model on Rigid Terrain Dear Chrono Team, I am currently implementing a simplified tractor model in Chrono for use in a real-time simulation environment. The model consists of a rigid chassis, a fixed rear axle with steered and driven wheels, and a front axle modeled as a rigid beam suspended via a central pivot (as commonly used in tractor front axles) with additional steering. The goal is to capture the essential dynamic behavior of the vehicle—particularly in heave, pitch, and roll—sufficiently well for deployment on a motion platform. The vehicle operates on a rigid, non-deformable terrain, represented by a tessellated triangular mesh. The primary excitation arises from terrain-induced vertical disturbances with dominant frequency components up to approximately 10 Hz. My core question is: What is the expected feasibility of running such a model in real time using Chrono? In particular: * Are there benchmarks or best practices for achieving stable simulation at control loop frequencies ~1 kHz? * Which solver/integrator is recommended for this type of setup? * Are there known performance bottlenecks when using non-deformable terrains modeled as triangular meshes? Any insights—especially from prior experience with real-time vehicle simulation or motion cueing applications—would be highly appreciated. Best regards, Stefan Oberpeilsteiner -- 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 projectchrono+unsubscr...@googlegroups.com<mailto:projectchrono+unsubscr...@googlegroups.com>. To view this discussion visit https://groups.google.com/d/msgid/projectchrono/ddfef702-fd37-4479-aceb-72186eeac1f0n%40googlegroups.com<https://urldefense.com/v3/__https:/groups.google.com/d/msgid/projectchrono/ddfef702-fd37-4479-aceb-72186eeac1f0n*40googlegroups.com?utm_medium=email&utm_source=footer__;JQ!!Mak6IKo!OiK8ujXNh3As54pZIhOOwQOT6cgJDkI2-J8LI6YfZlY5nGUWl67isPd8wIg--H1NPXJfblqL_ZWseE9tE_UgWcwN3w$>. -- 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 projectchrono+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/projectchrono/DM8PR06MB770344053BDBC5518E6BCB10B158A%40DM8PR06MB7703.namprd06.prod.outlook.com.
