Hi，All Regarding the *topology of the multibody system, mass and inertia properties, hardpoint locations, characteristics of springs and dampers, characteristics of hydraulic actuators, transmission and engine parameters, etc.*:
For the *topology of the multibody system*, I can modify the structure of the 3D model based on publicly available information about the vehicle’s mechanical layout. For the other parameters, is it acceptable to *define reasonable assumed values or rely on publicly available data* in order to produce a *functional demo first*, and then later *seek appropriate channels to obtain a rigorous and validated dataset* to support a more accurate model? Thanks! 在2026年2月9日星期一 UTC+8 04:01:41<Zero> 写道： > Is this the HDF5 module? > https://github.com/HDFGroup/hdf5/releases/tag/2.0.0 > > 在2026年2月9日星期一 UTC+8 01:03:47<Zero> 写道： > >> Hi, >> Just updated main CMake build; chrono::fsi::tdpf produced the following >> error. >> >> ==== Chrono FSI module ==== >> >> >> Generic Chrono::FSI interface library >> >> Add Chrono_fsi library >> >> SPH-based Chrono::FSI submodule >> >> Chrono CUDA architectures: all-major >> >> Use double precision? OFF >> >> Splashsurf NOT found. Surface reconstruction utility disabled. >> >> Add Chrono_fsisph library >> >> TDPF-based Chrono::FSI submodule >> >> CMake Warning at src/chrono_fsi/tdpf/CMakeLists.txt:25 (message): >> Required HDF5 support not available; disabling Chrono::FSI-TDPF >> >> 在2026年2月8日星期日 UTC+8 03:57:36<Zero> 写道： >> >>> For modeling ground/soil/rock, which modules should be used — >>> chrono::dem or chrono::fsi? Can they interact with Chrono::Vehicle? For CRM >>> terrain, how accurate is the modeling of discrete materials like sand, >>> gravel, and soil? Also, is anyone in the community working on this >>> together? I can provide 3D models, as shown above. >>> >>> Thanks! >>> >>> Zero >>> >>> 'Radu Serban' via ProjectChrono <[email protected]> >>> 于2026年2月4日周三 17:06写道： >>> >>>> The “bulldozer” Dan mentions is, as you can see, simply an existing >>>> Chrono::Vehicle model with an attached blade. >>>> >>>> >>>> >>>> We do not have any Chrono::Vehicle templates for bulldozers or >>>> excavators, mainly because there was never a project to support this >>>> development. Theoretically, it would be relatively easy to add templates >>>> for bulldozer blades and excavator arms which could then be optionally >>>> mounted to an existing Chrono::Vehicle model (very much like we have the >>>> option to add trailers/rear chassis to an existing vehicle). However, I >>>> never looked at what the various possible topologies are (although they >>>> seem relatively standardized). >>>> >>>> >>>> >>>> Having said that, you can follow the same idea in the paper Dan linked >>>> to by starting with an appropriate existing Chrono::Vehicle template and >>>> then adding in your code the additional Chrono physical components >>>> (bodies, >>>> joints, actuators) to model the bulldozer blade or excavator arm. For >>>> wheeled bulldozers and excavators, the existing templates should work just >>>> fine (including models with articulated chassis steering). A more >>>> difficult problem may be with tracked vehicles since we currently support >>>> only a limited set of track assembly templates, so some vehicles will be >>>> more difficult or impossible to fit into those. >>>> >>>> >>>> >>>> --Radu >>>> >>>> >>>> >>>> *From:* 'Dan Negrut' via ProjectChrono <[email protected]> >>>> *Sent:* Friday, January 30, 2026 8:34 PM >>>> *To:* Zero <[email protected]>; ProjectChrono < >>>> [email protected]> >>>> *Subject:* RE: [chrono] On the Application of Engineering Vehicle >>>> Simulation >>>> >>>> >>>> >>>> There is a code for a small bulldozer associated with this paper, see >>>> the “reproducibility” discussion in the manuscript: >>>> https://advanced.onlinelibrary.wiley.com/doi/10.1002/adrr.202500180 >>>> <https://urldefense.com/v3/__https:/advanced.onlinelibrary.wiley.com/doi/10.1002/adrr.202500180__;!!Mak6IKo!PI-Jpc0GqKEnzkBtC1QKwwcPV7FqLzpTZL56ZiZQRWWyhUj5X8YZrWp_Ame8o7iokPkhy-cSxqIs6spVzoWI3LlUWAM$>. >>>> >>>> Uses CRM terrain. >>>> >>>> In general, it’s good to stick with CRM terrain for this type of >>>> applications since it’s pretty fast and pretty accurate. >>>> >>>> Dan >>>> >>>> --------------------------------------------- >>>> >>>> Bernard A. and Frances M. Weideman Professor >>>> >>>> NVIDIA CUDA Fellow >>>> >>>> Department of Mechanical Engineering >>>> >>>> Department of Computer Science >>>> >>>> University of Wisconsin - Madison >>>> >>>> 4150ME, 1513 University Avenue >>>> >>>> Madison, WI 53706-1572 >>>> >>>> 608 772 0914 <(608)%20772-0914> >>>> >>>> http://sbel.wisc.edu/ >>>> >>>> http://projectchrono.org/ >>>> <https://urldefense.com/v3/__http:/projectchrono.org/__;!!Mak6IKo!PI-Jpc0GqKEnzkBtC1QKwwcPV7FqLzpTZL56ZiZQRWWyhUj5X8YZrWp_Ame8o7iokPkhy-cSxqIs6spVzoWIijAX-lM$> >>>> >>>> >>>> --------------------------------------------- >>>> >>>> >>>> >>>> *From:* [email protected] <[email protected]> *On >>>> Behalf Of *Zero >>>> *Sent:* Friday, January 30, 2026 12:39 PM >>>> *To:* ProjectChrono <[email protected]> >>>> *Subject:* [chrono] On the Application of Engineering Vehicle >>>> Simulation >>>> >>>> >>>> >>>> I want to use the Chrono engine to simulate construction vehicles such >>>> as excavators and loaders. Are there any related examples, or which Chrono >>>> template should I refer to for developing such simulations, and which >>>> modules will be used? >>>> >>>> -- >>>> 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/15bf9d9c-0dd2-4100-ae6a-b4a1f7a9016en%40googlegroups.com >>>> >>>> <https://urldefense.com/v3/__https:/groups.google.com/d/msgid/projectchrono/15bf9d9c-0dd2-4100-ae6a-b4a1f7a9016en*40googlegroups.com?utm_medium=email&utm_source=footer__;JQ!!Mak6IKo!Pb5zxxkvyNZo2mi7Of09JnHICLm6QCIOyjJjTcxqn77tgeiA5IdGJUE4_qYrap5eNqreXDp7njGUQno$> >>>> . >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "ProjectChrono" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion visit >>>> https://groups.google.com/d/msgid/projectchrono/DM8PR06MB770379B0CFB62249928A3FDDB19FA%40DM8PR06MB7703.namprd06.prod.outlook.com >>>> >>>> <https://urldefense.com/v3/__https:/groups.google.com/d/msgid/projectchrono/DM8PR06MB770379B0CFB62249928A3FDDB19FA*40DM8PR06MB7703.namprd06.prod.outlook.com?utm_medium=email&utm_source=footer__;JQ!!Mak6IKo!PI-Jpc0GqKEnzkBtC1QKwwcPV7FqLzpTZL56ZiZQRWWyhUj5X8YZrWp_Ame8o7iokPkhy-cSxqIs6spVzoWI6SypHj8$> >>>> . >>>> >>>> -- >>>> 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/CH3PPF46CDC2185C1729E2DE6618D76DBE9A798A%40CH3PPF46CDC2185.namprd06.prod.outlook.com >>>> >>>> <https://groups.google.com/d/msgid/projectchrono/CH3PPF46CDC2185C1729E2DE6618D76DBE9A798A%40CH3PPF46CDC2185.namprd06.prod.outlook.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 visit https://groups.google.com/d/msgid/projectchrono/4f0bf037-bb1a-427d-ab52-b24d9f21655bn%40googlegroups.com.
