Hello Raunak, Thank you for using Chrono and posting questions on the forum! Could you please provide more details about your simulation so we can better assist you.
- How many cylinders do you have? Are they deformable or rigid? Only contacts? Are there any external forces, joints? - Why do you want to use HHT? Are you trying to improve accuracy, stability or speed? You mentioned that the step size is 1e-5. HHT won't go larger than that since that's the step size at which collision detection needs to happen. - What's the application goal? Are you trying to implement different contact force models? Is it for validation? - Can you be more specific about unsuccessful attempts at HHT? What solver parameters have you tried (alpha, tolerance, etc) When you say unsuccessful, do you mean non-convergence or simply slower than expected? Any warnings or error messages? Thank you, Luning On Friday, August 1, 2025 at 10:40:25 AM UTC-5 [email protected] wrote: > Hello, > > I am conducting a simulation modeling different forces on many cylinders > in a box. As their are many collisions, I have to set the time step size to > 1e-5. > > I would like to use adaptive timestepping with the HHT timestepper ( > https://api.chrono.projectchrono.org/classchrono_1_1_ch_timestepper_h_h_t.html), > > however I was wondering if anybody had an example on how to utilize it in > simulation, as my attempts to utilize it so far have been unsuccesful. > -- 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/f1f721c8-ac73-4fdf-ab14-8bff0b10ff12n%40googlegroups.com.
