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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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More information at:
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Kelvin Ding
9:28 AM
demo_FSI_SingleWheelTest
Hello everyone! After running demo_FSI_SingleWheelTest, I noticed that the component forces in the y
unread,
demo_FSI_SingleWheelTest
Hello everyone! After running demo_FSI_SingleWheelTest, I noticed that the component forces in the y
9:28 AM
Simone
Jan 5
ChLinkMotorRotationAngle::GetMotorAngleDt2() -> wrong acceleration
Hi, I have a vary basic system consisting of a rotating body, controlled by an infinite stiffness
unread,
ChLinkMotorRotationAngle::GetMotorAngleDt2() -> wrong acceleration
Hi, I have a vary basic system consisting of a rotating body, controlled by an infinite stiffness
Jan 5
sumaya
,
Ruochun Zhang
6
Jan 3
WheelDPSimplified-Error
Sumaya, Somehow the message you paste is still not the final one, and it appears to have stopped
unread,
WheelDPSimplified-Error
Sumaya, Somehow the message you paste is still not the final one, and it appears to have stopped
Jan 3
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
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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
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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.
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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
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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
Ahmethan Acar
,
Radu Serban
4
11/12/25
Using the TMeasy tire model
Is there any reason why you didn't use Chrono::Vehicle for this? We provide all templates needed
unread,
Using the TMeasy tire model
Is there any reason why you didn't use Chrono::Vehicle for this? We provide all templates needed
11/12/25
Jakob Pflugbeil
,
Radu Serban
2
11/12/25
Over constrained system
Hi Jakob, First, a closed loop does not necessarily mean an over-constrained system. Second, if you
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Over constrained system
Hi Jakob, First, a closed loop does not necessarily mean an over-constrained system. Second, if you
11/12/25
Emrullah Cebeci
,
Radu Serban
3
11/12/25
Project Chrono 0xC0000005 Crash - Access violation on vehicle.Initialize() (Custom JSON Loading Issue)
Yes, I did what you suggested. When I debugged the code, I noticed that the 'vehicle.json'
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Project Chrono 0xC0000005 Crash - Access violation on vehicle.Initialize() (Custom JSON Loading Issue)
Yes, I did what you suggested. When I debugged the code, I noticed that the 'vehicle.json'
11/12/25
Salman Husain
, …
Bocheng Zou
6
11/8/25
ROS2 can't be enabled
Hi Salman, Sorry for the long delay. Could you please perform the following inspection (all in the
unread,
ROS2 can't be enabled
Hi Salman, Sorry for the long delay. Could you please perform the following inspection (all in the
11/8/25
sumaya
,
Ruochun Zhang
5
10/29/25
Questions About Paraview and GRCPrep Files
Hi Sumaya, About ParaView MPI, what I meant is that, if the memory is the issue, you can consider
unread,
Questions About Paraview and GRCPrep Files
Hi Sumaya, About ParaView MPI, what I meant is that, if the memory is the issue, you can consider
10/29/25
juju
,
Radu Serban
6
10/29/25
Vehicle Chassis No Visualisation
I am going to guess that you did not build new VSG libraries. See my email to the mailing group from
unread,
Vehicle Chassis No Visualisation
I am going to guess that you did not build new VSG libraries. See my email to the mailing group from
10/29/25
Emrullah Cebeci
,
Radu Serban
3
10/28/25
Modeling a 6x6 Rigid-Chassis, Skid-Steer Vehicle with Fiala Tires in Project Chrono
Thank you for your answer. I currently have a model built with Chrono Physics. I need to integrate
unread,
Modeling a 6x6 Rigid-Chassis, Skid-Steer Vehicle with Fiala Tires in Project Chrono
Thank you for your answer. I currently have a model built with Chrono Physics. I need to integrate
10/28/25
Fabio Marghella
10/28/25
Co-simulation with other softwares
Hi everyone, I need to simulate the interaction of a FEM model in Abaqus with particles and I decided
unread,
Co-simulation with other softwares
Hi everyone, I need to simulate the interaction of a FEM model in Abaqus with particles and I decided
10/28/25
ychen_441
, …
Salman Husain
4
10/23/25
Building Chrono failed
Hi Radu, I am sorry for the late response. This is a good news/bad news scenario. First the bad news:
unread,
Building Chrono failed
Hi Radu, I am sorry for the late response. This is a good news/bad news scenario. First the bad news:
10/23/25
Salman Husain
,
Bocheng Zou
4
10/20/25
Issues with VSG on Ubuntu 24.04
Hi Bocheng Zou, Thanks so much ! That was an oversight from my end. That worked! On Saturday, October
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Issues with VSG on Ubuntu 24.04
Hi Bocheng Zou, Thanks so much ! That was an oversight from my end. That worked! On Saturday, October
10/20/25
sheng jin
,
Bocheng Zou
2
10/18/25
URDF visualization issue
Hi sheng, Thank you for reaching out. There are some known issues in old version of Irrlicht / VSG
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URDF visualization issue
Hi sheng, Thank you for reaching out. There are some known issues in old version of Irrlicht / VSG
10/18/25
李思嘉
, …
Bocheng Zou
3
10/17/25
add unitree robot
Hi 李思嘉, We do have such support. Please check it out here: https://github.com/uwsbel/sbel-
unread,
add unitree robot
Hi 李思嘉, We do have such support. Please check it out here: https://github.com/uwsbel/sbel-
10/17/25
Jakob Pflugbeil
,
Radu Serban
3
10/15/25
Problem with the constraint when it is spring loaded joint
Hello Radu, Thanks for the response. I updated the file and attached the obj. I used the Generic
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Problem with the constraint when it is spring loaded joint
Hello Radu, Thanks for the response. I updated the file and attached the obj. I used the Generic
10/15/25