Hello Dr. Negrut, Thank you for the reply. We are trying to simulate a terramechanics rig using the "CHTiretestrig" class functions. In the experiment, the output I'm looking for is the tire forces (which as far as I understand from ReportTireForces()is, the force at the spindle and not the contact patch forces?) and for input, I want to vary the inflation pressure and other tire parameters. This will help us to obtain the drawbar pull for different inputs in addition to inflation pressure, such as wheel speed, slip ratios etc. Specifically, studying tire behaviors on deformable terrain is a priority in this project.
For this purpose, I used the TMeasytire model as it had a functionality of giving tire inflation pressure as input. Could you please give your thoughts on formulating this problem using the available libraries in chrono? We basically need a test rig mechanism, tire and deformable terrain. Please let us know your thoughts. Thank you, Sincerely, Jyotirmoy Mukherjee On Wednesday, March 29, 2023 at 4:05:14 PM UTC-4 Dan Negrut wrote: > Ekansh - one can't use Pacejka or TMEasy with SCM or CRM or DEM > (deformable terrains, that is). The only way to do that would be to use an > FEA tire model. That would be though painstaking and would run very slowly. > Is it a possibility to consider the terrain rigid? Then you are good to go > with TMEasy. > Dan > > On Tuesday, March 28, 2023 at 3:23:29 PM UTC-5 [email protected] wrote: > >> Hi, >> >> Hope this email finds you well. >> >> We are using Chrono to conduct an on-rig analysis of different tires and >> we are pretty new to using Chrono. We are stuck while trying to create a >> custom tire file that takes tire inflation pressure in units of pressure, >> along with the other structural dimensions, as an input . It's been a month >> and we are still trying to figure that out. We have realized that we cannot >> waste time anymore on trying ourselves as the deadlines are coming close, >> and we need help. >> >> We would really appreciate it if you could help us out with this >> through a zoom meeting. Please share your availability and feel free to let >> us know if you have any questions or concerns. >> >> Thanks and regards, >> Sincerely, >> Ekansh Chaturvedi >> Graduate Student, >> Terramechanics, Multibody and Vehicle Systems Laboratory (TMVS), >> Computational Sciences Laboratory (CSL), >> Department of Mechanical Engineering >> Virginia Tech >> > -- 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 on the web visit https://groups.google.com/d/msgid/projectchrono/059402a7-3f05-4e32-bd04-05bb7d1784e3n%40googlegroups.com.
