Modelling shaking table experiment_unexpected prescribed velocity

[19Dario88]

Dear all,
I’m Dario, a PhD student in Geosciences. I’m interesting in the ANURA3D applicability on seismic-induced landslides, so I started to replicate what Alsardi&Yerro (2021) presented on that topic: modelling the shaking table experiment by Hiraoka (2013): a soil body settled on a rigid horizontal plate, while a vertical wall retains the soil on the left side, trough a smooth contact (Fig.a).
However, I’m facing with a “preliminary” numerical issue: how the nodal prescribed velocity (from external file, Fig.b) is modelled in the nodes of the horizontal plate and the vertical wall (both modelled as rigid bodies), where the prescribed velocity are implemented. As rigid bodies, I expect that in every node of the plate and of the wall, in every time step, the velocity must be the same of what I prescribed as boundary condition. However, it doesn’t happen in any node (Fig.c). Where Am I wrong?
Thank you in advance for your suggestions!
Dario
Hiraoka2013_v16.GOM.txt
Hiraoka2013_v16.CPS_001.txt
Hiraoka2013_v16.CPS_002.txt

a)
b)
c)

[19Dario88]

Dear all,
after talking about this issue with other researchers, the problem has been solved. As the second column of the ".PVF" file contains multiplier coefficients of the initial prescribed velocity, the latter have to be set equal to 1 in the GID model.
Regards,
Dario

[kuailebozai]

Hi Dario, I'm interested in your question about earthquake induced landslides because I've encountered a similar problem before with Anura3d, and if it's possible I'd like to ask you about the simulation of earthquakes. Here is my email: kaiboyang2023@163.com, please contact me, thank you very much!

[19Dario88]

Hi,
I'm pretty new on ANURA3D, but I'm sure that users more expert than me could help you. If you need explanations about this specific issue, please ask!
Regards,
Dario

[kuailebozai]

Hi Dario, I am also trying to simulate the shaker experiment of Hiraoka (2013), however, when I do the calculations using rigid bodies and "contact", the program reports the error "forrtl: severe (157): Program Exception - access violation", so I would like to know how you solved this problem, could you provide me with your ".GID" file and your ".PVF" velocity file, it would be very helpful to me. This will help me a lot, thank you very much!

[CH-max92]

Dear dario, how did you set up the moving mesh in the shaking table model? I selected the four corners of the model border as the points of the three different mesh, but the calculation reported an error. I suppose the PV or moving mesh might conduct unknown errors in my simulation.
Thank you in advance for your advice.