MAN5t truck in Deformable soil

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Prabasgarage

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Apr 17, 2024, 10:31:51 AM4/17/24
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Hi,

I am modelling a MAN5T truck going over a deformable terrain.  I started with the example script provided (demo_VEH_HMMWV_DefSoil.cpp). In the example script I just changed the vehicle to MAN5t. I was able to build and run the project successfully. but the vehicle keeps falling down below the terrain infinitely instead of going over the terrain. I reckon this is mainly because of the vehicle weight which is around 9 tons. when I referred the other example script(demo_VEH_M113_DefSoil.cpp), the M113 vehicle mass is seems t to be zero as I noticed this from the output panel while running the exe. 

So, Is there a way to set MAN5t truck mass? or How this problem could be resolved? I tried changing the terrain parameters as well. Doesn't help.

Thanks,
Prabanjan
manss17.cpp

dr.ratz...@gmail.com

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Apr 18, 2024, 6:16:01 AM4/18/24
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Hi,

for this task a rigid tire must be used. It is actually not implemented yet for the MAN 5t truck. A handling tire does not help.

Prabasgarage

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Apr 18, 2024, 9:40:02 AM4/18/24
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In the script when I try with a sedan car, It was working. Also what is "handling tire" referring to in chrono? can you please clarify?

dr.ratz...@gmail.com

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Apr 20, 2024, 3:34:41 AM4/20/24
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Handling tires are for calculating driving behavior of wheeled vehicles. They are optimized for horizontal dynamics. Examples: PacejkaXX, TMeasy and TMsimple. Usually thes models are used on flat and rigid terrain.

Radu Serban

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Apr 20, 2024, 5:54:20 AM4/20/24
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As a follow up to Rainer’s answer, the reason you cannot use a vehicle with this type of tires on SCM is that only objects with a collision model can interact with SCM terrain and a handling tire model does not carry a collision model.

--Radu

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