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Welcome to the group of Project Chrono developers.
Use this group to exchange ideas, comments and bugs with other developers
of Project Chrono, including C++ issues, planned features, etc.
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Zero
, …
Radu Serban
4
2:57 PM
On the Application of Engineering Vehicle Simulation
For modeling ground/soil/rock, which modules should be used — chrono::dem or chrono::fsi? Can they
unread,
On the Application of Engineering Vehicle Simulation
For modeling ground/soil/rock, which modules should be used — chrono::dem or chrono::fsi? Can they
2:57 PM
Simone
,
Radu Serban
3
6:14 AM
ChLinkMotorRotationAngle::GetMotorAngleDt2() -> wrong acceleration
Hello Radu, Here a minimal working example: #include "chrono/physics/ChSystemNSC.h" #
unread,
ChLinkMotorRotationAngle::GetMotorAngleDt2() -> wrong acceleration
Hello Radu, Here a minimal working example: #include "chrono/physics/ChSystemNSC.h" #
6:14 AM
Antoine Laborde
,
Radu Serban
2
Feb 4
Collision detection at different scales
Antoine, Chrono is unit-independent, so you should model using whatever units make more sense for
unread,
Collision detection at different scales
Antoine, Chrono is unit-independent, so you should model using whatever units make more sense for
Feb 4
Sean You
,
Radu Serban
2
Feb 4
Vulkan not found with vulkan 1.4 installed
Hi Sean, You must set VULKAN_SDK. On my Windows machine, that is set to 'C:\VulkanSDK\1.3.236.0
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Vulkan not found with vulkan 1.4 installed
Hi Sean, You must set VULKAN_SDK. On my Windows machine, that is set to 'C:\VulkanSDK\1.3.236.0
Feb 4
Jasper Grant
Feb 3
GRC-1 SCM Parameters
Hello, I was reading through the reproducibility repo and found a line that has SCM parameters for
unread,
GRC-1 SCM Parameters
Hello, I was reading through the reproducibility repo and found a line that has SCM parameters for
Feb 3
sumaya
,
Ruochun Zhang
8
Jan 26
WheelDPSimplified-Error
Hi Sumaiya, Instead of reverse calculations, I suggest making a rendering first in debugging.
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WheelDPSimplified-Error
Hi Sumaiya, Instead of reverse calculations, I suggest making a rendering first in debugging.
Jan 26
henry zhang
,
Radu Serban
2
Jan 25
The "demo_MCORE_ballsSMC" with Multicore module has no acceleration effect
I'm not exactly sure how you are measuring multicore performance. I suggest you run the benchmark
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The "demo_MCORE_ballsSMC" with Multicore module has no acceleration effect
I'm not exactly sure how you are measuring multicore performance. I suggest you run the benchmark
Jan 25
Mahmoud Yaseen
, …
Ruochun Zhang
9
Jan 23
DEM-Engine Issues
Hi Ding, I tested it myself, and I cannot reproduce it. The code runs well for me with CUDA13 (I am
unread,
DEM-Engine Issues
Hi Ding, I tested it myself, and I cannot reproduce it. The code runs well for me with CUDA13 (I am
Jan 23
Leen
Jan 19
Scale consistency on coupling SMC and DEM
Hello, I am currently working on a project that combines Chrono's SMC and DEM modules within the
unread,
Scale consistency on coupling SMC and DEM
Hello, I am currently working on a project that combines Chrono's SMC and DEM modules within the
Jan 19
Dan Fenn
,
Huzaifa Mustafa Unjhawala
2
Jan 16
Multi-resolution SPH in CRM terrains
Hello Dan, It was implemented but later removed (not sure for what reason, I was not here then). Your
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Multi-resolution SPH in CRM terrains
Hello Dan, It was implemented but later removed (not sure for what reason, I was not here then). Your
Jan 16
Sean Pei
,
Radu Serban
3
Jan 16
Literature Search: ANCF Element Theories in Chrono
Thanks for your help. 在2026年1月16日星期五 UTC+8 19:50:47<Radu Serban> 写道: Look at these two papers
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Literature Search: ANCF Element Theories in Chrono
Thanks for your help. 在2026年1月16日星期五 UTC+8 19:50:47<Radu Serban> 写道: Look at these two papers
Jan 16
Roger Bergua
,
Alessandro TASORA
4
Jan 14
Timoshenko beams issue
Dear Alessando, Thanks fo the feedback. My understanding is that the shear locking in finite elements
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Timoshenko beams issue
Dear Alessando, Thanks fo the feedback. My understanding is that the shear locking in finite elements
Jan 14
kuwt
,
Radu Serban
12
Jan 13
Simulation of spinning top collision
Hello Radu, Thank you. Now everything works properly. On Tuesday, 13 January 2026 at 12:16:24 UTC+1
unread,
Simulation of spinning top collision
Hello Radu, Thank you. Now everything works properly. On Tuesday, 13 January 2026 at 12:16:24 UTC+1
Jan 13
Roger Bergua
,
Radu Serban
6
Jan 11
Reaction loads issue
Excellent! Thank you, Radu! On Sunday, January 11, 2026 at 5:58:42 AM UTC-7 Radu Serban wrote: Roger
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Reaction loads issue
Excellent! Thank you, Radu! On Sunday, January 11, 2026 at 5:58:42 AM UTC-7 Radu Serban wrote: Roger
Jan 11
Zero
,
Radu Serban
3
Jan 11
Errors encountered while compiling Chrono's dem_module
Hi,dear Thank you for your suggestion.I'll try CUDA version 12.9. 在2026年1月9日星期五 UTC+8 18:37:32
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Errors encountered while compiling Chrono's dem_module
Hi,dear Thank you for your suggestion.I'll try CUDA version 12.9. 在2026年1月9日星期五 UTC+8 18:37:32
Jan 11
Kelvin Ding
,
Radu Serban
2
Jan 9
demo_FSI_SingleWheelTest
Hi Ding, This is a demo that I meant to remove a while ago. I just did that. There is a much better
unread,
demo_FSI_SingleWheelTest
Hi Ding, This is a demo that I meant to remove a while ago. I just did that. There is a much better
Jan 9
Rebeca Guimarães
, …
Bocheng Zou
17
12/25/25
FSI won't work
Hi Ding, Sorry for the delayed response. We just identified the issue, and released a new conda
unread,
FSI won't work
Hi Ding, Sorry for the delayed response. We just identified the issue, and released a new conda
12/25/25
Mayadhar Senapati
,
Radu Serban
2
12/22/25
Custom Road and Vehicle Simulation in Project Chrono
The answer is yes to all 3 questions. This is all well illustrated and discussed in the documentation
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Custom Road and Vehicle Simulation in Project Chrono
The answer is yes to all 3 questions. This is all well illustrated and discussed in the documentation
12/22/25
Roger Bergua
12/17/25
Connect a rigid link to a flexible beam element
Hi all, I'm relatively new using Project Chrono and I'm struggling trying to connect a rigid
unread,
Connect a rigid link to a flexible beam element
Hi all, I'm relatively new using Project Chrono and I'm struggling trying to connect a rigid
12/17/25
jingwu chen
, …
Radu Serban
3
12/14/25
Differences between SPH and SCM in Simulating Tire Experiments
Rebeca, Great explanation! I couldn't have said it better :) Nothing to add, except maybe that,
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Differences between SPH and SCM in Simulating Tire Experiments
Rebeca, Great explanation! I couldn't have said it better :) Nothing to add, except maybe that,
12/14/25
Zero
12/12/25
"APIs for Chrono's geometric construction and collision"
“I'm using Chrono's core as a library. I'm embedding it into another software. When
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"APIs for Chrono's geometric construction and collision"
“I'm using Chrono's core as a library. I'm embedding it into another software. When
12/12/25
juju
2
12/10/25
Rigid to SCM terrain transition issues
Link google drive for the video https://drive.google.com/drive/folders/
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Rigid to SCM terrain transition issues
Link google drive for the video https://drive.google.com/drive/folders/
12/10/25
Isabella Wood
,
Radu Serban
3
12/7/25
Chrono Gpu Cuda version
Note also that I recently renamed the Chrono::GPU module to Chrono::DEM. --Radu From: 'Radu
unread,
Chrono Gpu Cuda version
Note also that I recently renamed the Chrono::GPU module to Chrono::DEM. --Radu From: 'Radu
12/7/25
Dan Fenn
,
Radu Serban
3
12/3/25
Longitudinal slip not being updated in demo_VEH_TireTestRig_CRM
Thanks Radu, that makes sense. I appreciate the code updates and the explanation. Dan On Wednesday,
unread,
Longitudinal slip not being updated in demo_VEH_TireTestRig_CRM
Thanks Radu, that makes sense. I appreciate the code updates and the explanation. Dan On Wednesday,
12/3/25
Antoine Laborde
, …
Radu Serban
4
11/28/25
Follow-up non-realistic mesh collision
Thank you both for your answers. I will post here what helped with my problem in case somebody come
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Follow-up non-realistic mesh collision
Thank you both for your answers. I will post here what helped with my problem in case somebody come
11/28/25
David Morrill
,
Radu Serban
4
11/26/25
Custom vehicle - snowmobile chassis guidance
Hi Dave, I also suggested you use C++ :-) Not everything is wrapped and exposed in PyyChrono.
unread,
Custom vehicle - snowmobile chassis guidance
Hi Dave, I also suggested you use C++ :-) Not everything is wrapped and exposed in PyyChrono.
11/26/25
Dan Fenn
,
Huzaifa Mustafa Unjhawala
3
11/19/25
BCE Marker Guidance
Hi Huzaifa, Excellent--this is very helpful. That source file looks like exactly the kind of thing I
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BCE Marker Guidance
Hi Huzaifa, Excellent--this is very helpful. That source file looks like exactly the kind of thing I
11/19/25
Zero
,
Bocheng Zou
2
11/16/25
ROS modules configure
Hi Zero, Could you please double check if your ROS2 installation is correct and it's enabled in
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ROS modules configure
Hi Zero, Could you please double check if your ROS2 installation is correct and it's enabled in
11/16/25
장종현
,
Dan Negrut
2
11/12/25
HMMWV 4WD ??
If you don't mind sharing publicly and can post the PyChrono model here we might be able to take
unread,
HMMWV 4WD ??
If you don't mind sharing publicly and can post the PyChrono model here we might be able to take
11/12/25
sumaya
,
Ruochun Zhang
4
11/12/25
DEMdemo_Wheel and DEMDemo_WheelDP_simplified
Hi Sumaiya, 1. Yes. And also their radii r. And the implicit origin of the xyz coordinates you give
unread,
DEMdemo_Wheel and DEMDemo_WheelDP_simplified
Hi Sumaiya, 1. Yes. And also their radii r. And the implicit origin of the xyz coordinates you give
11/12/25