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This is a two-body test of the HYBRID_SOLVER in Solfec;
The mechanical problem is:
+----------+
| | cube 1x1x1m
| | mass density 1 kg/m3
| |
| | Z Y
+----------+ | / gravity = (0, 0, -10)
gap = 0.1m | / initial velocities are all zero
+----------+ + ----- X
| | cube 1x1x1m impact restitution is 0.0
| | mass density 1 kg/m3 contact friction of 0.1
| | fixed along X, Y + all rotations
| |
+----------+
\
/ spring stiffness 100 N/m
\ dashpot coefficient 1 Nm/s
/
===
the natural frequency of the undamped spring mass is: sqrt(k/m)/2pi = 10/3.14 ~ 3.2 Hz
In Solfec:
The upper body is modeled as RIGID using 8 hexahedral elements;
The lower body is modeled as RIGID using one hexahedral element;
Signorini-Coulomb model is used to model contact interaction;
In Parmec:
Only the lower body is modeled as a rigid body;
One hexahedral element is used;
We model vibrations of this impact problem over time [0, 10s];
NOTE: the transitional *boundary* bodies all need to modeled as rigid in Solfec;
Online: http://parmes.github.io/solfec/examples/hybrid_modeling/hs0.html
YouTube: https://www.youtube.com/watch?v=osRepFXukDo
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