Why do the parameters of one model affect the effects of another model Is it because of unreasonable parameter setting?

[yangwxb]

hello, I have a problem now, when I have two models in my scene, the parameters of one model will affect the simulation effect of the other model, which makes me confused.

20240704_182650.mp4

[epernod]

Hi,
It is not clear what you are doing. Please post your full scene and explain which values you are changing.

Best regards

[yangwxb]

ok, I'll upload my model and scene, I changed is "JingZhuangTi" model of TetrahedralCorotationalFEMForceField, TriangularFEMForceField and TriangularBendingSprings in the component parameters, such as, Mainly youngModulus, stiffness and damping values. It is then found that changes in these values will affect the deformation effect of the other model.
test.zip

[yangwxb]

Is it because I've added solvers to both root and child nodes?

[hugtalbot]

Hi @yangwxb

There no reason that such thing occurs.
I can deform the "jiaomo" node anyway.

I think you just struggled to "catch" the triangle collision model but changing the stiffness of the "JingZhuangTi" does not affect the "jiaomo" object.

[yangwxb]

@hugtalbot You are right, the irrational phenomenon in the video is because I added solvers to the root node and the children at each level, although I don't know why this happened, but when I removed the solver under the root node, everything became normal.

[hugtalbot]

Hey @yangwxb

I guess you refer to the solvers associated to the JingZhuangTi node, correct ?
This node was empty anyway in the scene you shared.

Can we consider your topic as solved?

[yangwxb]

Yes, my topic has been solved.
I used EulerImplicitSolver and CGLinearSolver under the JingZhuangTi node.Why did you say it was empty? Is it because there's something wrong with my writing?

[hugtalbot]

The number of DOF was zero (empty MechanicalObject)