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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.
You can use the web interface at
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More information at:
http://www.projectchrono.org
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Samuele Vaghi
, …
Radu Serban
5
Jul 28
Restitution - ChSystemMulticoreNSC
Hi Radu, thanks for your answer. The main reason we would like to use NSC model over SMC is because
unread,
Restitution - ChSystemMulticoreNSC
Hi Radu, thanks for your answer. The main reason we would like to use NSC model over SMC is because
Jul 28
Hiroaki Amakawa
,
Ruochun Zhang
2
Jul 24
How to run TWO GPU calculation for DEM-Engine
Hi Hiroaki, One problem with the current DEME is that it will automatically use available GPUs and
unread,
How to run TWO GPU calculation for DEM-Engine
Hi Hiroaki, One problem with the current DEME is that it will automatically use available GPUs and
Jul 24
Haifei Chen
,
Radu Serban
3
Jul 17
Compile urdf & vsg for chrono v10
Hi Radu, Thanks for the help; issue resolved. I have coupled chrono (rigid multibody and beam models,
unread,
Compile urdf & vsg for chrono v10
Hi Radu, Thanks for the help; issue resolved. I have coupled chrono (rigid multibody and beam models,
Jul 17
Janik Helbig
,
Dan Negrut
2
Jul 13
Support for plastic deformation of FEA elements
Janik, Your reading of 10.0 is correct. In the current stable release, plasticity in the FEA module
unread,
Support for plastic deformation of FEA elements
Janik, Your reading of 10.0 is correct. In the current stable release, plasticity in the FEA module
Jul 13
박선호
,
Ruochun Zhang
4
Jul 12
Initialize hangs in pyDEME after solver setup on WSL (CUDA Blackwell/compute_120)
Hi Sunho, About the extremely slow JIT process: Taking 10~17 mins is not normal for the process. I
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Initialize hangs in pyDEME after solver setup on WSL (CUDA Blackwell/compute_120)
Hi Sunho, About the extremely slow JIT process: Taking 10~17 mins is not normal for the process. I
Jul 12
OUSSAMA EL MOUIAH
, …
Ruochun Zhang
6
Jul 3
Hertz Contact Patch and Curvature Information in Chrono
Oussama, Interesting and sure, I'd like to know how you are implementing it and how it could
unread,
Hertz Contact Patch and Curvature Information in Chrono
Oussama, Interesting and sure, I'd like to know how you are implementing it and how it could
Jul 3
ruibin
,
Radu Serban
2
Jul 3
How can I modify the gear shifting logic of the HMMWV model for soft-soil terrain?
The gear shifting algorithm depends on the transmission model you are using. The HMMWV model allows
unread,
How can I modify the gear shifting logic of the HMMWV model for soft-soil terrain?
The gear shifting algorithm depends on the transmission model you are using. The HMMWV model allows
Jul 3
JüliMari
,
Dan Negrut
2
Jul 1
CRM/SPH cone drop with LHS-1: unexpected behavior when adding a cohesion parameter
Hi Juli! ## What the CRM mu(I) model does at/near the free surface The behavior you're seeing (
unread,
CRM/SPH cone drop with LHS-1: unexpected behavior when adding a cohesion parameter
Hi Juli! ## What the CRM mu(I) model does at/near the free surface The behavior you're seeing (
Jul 1
Zero
,
Dan Negrut
2
Jul 1
Questions regarding the TensorRT library of the Chrono::Sensor module
Hi, Yes, TensorRT support was removed from Chrono::Sensor. The CHANGELOG gives the reasoning directly
unread,
Questions regarding the TensorRT library of the Chrono::Sensor module
Hi, Yes, TensorRT support was removed from Chrono::Sensor. The CHANGELOG gives the reasoning directly
Jul 1
Rebeca Guimarães
, …
Huzaifa Mustafa Unjhawala
4
Jun 9
Post-Processing: Including SPH soil particles on Blender
Hello there, Khai and Huzaifa! Thank you for claryfing, this is amazing since I already save the CSV
unread,
Post-Processing: Including SPH soil particles on Blender
Hello there, Khai and Huzaifa! Thank you for claryfing, this is amazing since I already save the CSV
Jun 9
Dan Negrut
Jun 9
MaGIC meeting, 2026: registration now open
Dear Chrono Forum Member, Radu Serban and I would like to invite you to attend the 14th edition of
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MaGIC meeting, 2026: registration now open
Dear Chrono Forum Member, Radu Serban and I would like to invite you to attend the 14th edition of
Jun 9
Zero
, …
Dan Negrut
12
May 28
Does Chrono have an MPM algorithm?
Hi,Dear The error I encountered after enabling CH_USE_SENSOR_NVDB previously seems to be a version
unread,
Does Chrono have an MPM algorithm?
Hi,Dear The error I encountered after enabling CH_USE_SENSOR_NVDB previously seems to be a version
May 28
Aleksandr Prokhorov
, …
dr.ratz...@gmail.com
5
May 28
ChVisualSystemVSG
Thank you for the idea! I will try to use it! On Thursday, May 28, 2026 at 7:31:37 AM UTC+2 dr.ratz..
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ChVisualSystemVSG
Thank you for the idea! I will try to use it! On Thursday, May 28, 2026 at 7:31:37 AM UTC+2 dr.ratz..
May 28
Yang Kang Chua
,
Radu Serban
3
May 21
Question on extracting suspension hardpoint forces in Chrono (HMMWV model)
I forgot to mention the most straightforward approach: replacing the kinematic joints with bushings.
unread,
Question on extracting suspension hardpoint forces in Chrono (HMMWV model)
I forgot to mention the most straightforward approach: replacing the kinematic joints with bushings.
May 21
Christian Lipp
,
Radu Serban
3
May 21
Output names are different depending on configuration
Hello Radu, thank you for the clarification! Kind regards, Christian Am 20.05.2026 um 21:55 schrieb
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Output names are different depending on configuration
Hello Radu, thank you for the clarification! Kind regards, Christian Am 20.05.2026 um 21:55 schrieb
May 21
Jose
,
Radu Serban
2
May 20
Is there a bug in Python ChLinkLockPointLine?
Jose, There is really no “standard” among MBD solvers, as each is free to adopt whatever convention
unread,
Is there a bug in Python ChLinkLockPointLine?
Jose, There is really no “standard” among MBD solvers, as each is free to adopt whatever convention
May 20
M. Pereira
, …
Radu Serban
3
May 20
Detent Mechanism with ChRSDA issue
As Dan suggested, the best way to get help on such issues is to provide a simple reproducible example
unread,
Detent Mechanism with ChRSDA issue
As Dan suggested, the best way to get help on such issues is to provide a simple reproducible example
May 20
oğuzhan gültekin
,
Radu Serban
2
May 20
DEM multi-sphere
Oguzhan, The Chrono::DEM module in the Chrono repository only works with monodisperse spherical
unread,
DEM multi-sphere
Oguzhan, The Chrono::DEM module in the Chrono repository only works with monodisperse spherical
May 20
Shlomo
,
Jose
2
May 19
Feedback wanted: Chrono adapter boundary for an open-source CAE application layer
Hello Shlomo. I have read your project design. It is very interesting to me, because we are working
unread,
Feedback wanted: Chrono adapter boundary for an open-source CAE application layer
Hello Shlomo. I have read your project design. It is very interesting to me, because we are working
May 19
sumaya
,
Ruochun Zhang
5
May 1
DEM_wheelDP_simplifed_low DP forces at 50%slip
Hi Sumaya, The questions you have here are all DEM simulation questions rather than DEME questions.
unread,
DEM_wheelDP_simplifed_low DP forces at 50%slip
Hi Sumaya, The questions you have here are all DEM simulation questions rather than DEME questions.
May 1
Roger Bergua
, …
alvaro diaz
5
Apr 20
Timoshenko beams issue
Dear Alessandro, My name is Alvaro and I am currently working with Radu in an NLR project. I have
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Timoshenko beams issue
Dear Alessandro, My name is Alvaro and I am currently working with Radu in an NLR project. I have
Apr 20
Thomas Caleb
,
Alessandro Tasora
3
Apr 16
Issues with BST shell elements
Ciao Alessandro, Thank you for you reply. The mass problem is indeed strange, I tried to look it up
unread,
Issues with BST shell elements
Ciao Alessandro, Thank you for you reply. The mass problem is indeed strange, I tried to look it up
Apr 16
Mariah A.P.
,
Dan Negrut
5
Apr 13
Contact formulation on collision
Yes it is for a watch mechanism. It's a "finger" that pushes a disc foward. I will
unread,
Contact formulation on collision
Yes it is for a watch mechanism. It's a "finger" that pushes a disc foward. I will
Apr 13
Mariah A.P.
Apr 13
Stability issues with small parts (watch simulation)
Hi everyone, I'm trying to simulate the functioning of a wristwatch, but I'm running into
unread,
Stability issues with small parts (watch simulation)
Hi everyone, I'm trying to simulate the functioning of a wristwatch, but I'm running into
Apr 13
Shahriar Karim Shafin
, …
Ruochun Zhang
17
Apr 10
Triaxial Compression Test in DEM Engine
Hi Shahriar, As Dan said, this is indeed caused by GPU floating-point non-associativity and this
unread,
Triaxial Compression Test in DEM Engine
Hi Shahriar, As Dan said, this is indeed caused by GPU floating-point non-associativity and this
Apr 10
Radu Serban
Mar 26
Release 10.0.0
We just released version 10.0.0 of the Chrono software. The source for this release is in the release
unread,
Release 10.0.0
We just released version 10.0.0 of the Chrono software. The source for this release is in the release
Mar 26
Brock Birdsong
, …
Bocheng Zou
3
Mar 23
Cascade Step File Demo
Hi Brock, Unfortunately, we decided not to include the cascade support for the upcoming Chrono 10
unread,
Cascade Step File Demo
Hi Brock, Unfortunately, we decided not to include the cascade support for the upcoming Chrono 10
Mar 23
Alex Smofan
,
Radu Serban
2
Mar 20
How to set Chrono mu(I) rheology parameters (e.g., average_diam, mu_fric_s) for granular flow in DualSPHysics?
CRM (and the mu(I) rheology) is a feature of Chrono::SPH. That has nothing to do with DualSPHysics!
unread,
How to set Chrono mu(I) rheology parameters (e.g., average_diam, mu_fric_s) for granular flow in DualSPHysics?
CRM (and the mu(I) rheology) is a feature of Chrono::SPH. That has nothing to do with DualSPHysics!
Mar 20
Leah Richard
, …
Patrick CHEN
3
Mar 19
Vulkan/VSG fails inside Docker on WSL2/WSLg: vkCreateInstance
Hello Leah, This is a WSL2 issue(and is Windows enviornment and WSL2 version dependent), there are
unread,
Vulkan/VSG fails inside Docker on WSL2/WSLg: vkCreateInstance
Hello Leah, This is a WSL2 issue(and is Windows enviornment and WSL2 version dependent), there are
Mar 19
Aleksandr Prokhorov
,
Patrick CHEN
2
Mar 19
building ROS module
Hi Alex, Sorry for the late reply. We are aware of this bug, and please expect a fix in the very
unread,
building ROS module
Hi Alex, Sorry for the late reply. We are aware of this bug, and please expect a fix in the very
Mar 19