Subscribereview contact pais summary. remove redundant or overlapped pairs or BCs or external CEs. Define asymmetric contact pair.
merge connected/overlapped pairs. switch contact and target surfaces
run CNCHECK,post to identify the locations. use solid shell instead of thin shell. add multiple layers instead of single layer.
switch MPC contact pair order
use penalty formulation for certain pairs.
Month: 八月, 2009
overcome overconstraint in contact problem
prevent rigid body motion in contact problem
review contact pair summary. If there are initial gaps, move parts to estabilish initial contact, or use CNCHECK,ADJUST to align nodes.
ramp loads over few substeps.
use contact damping – with standard contact, set FKOP to negative value (Try starting value of -10)
add a weak spring for stability – set contact behavior to no separation (always) keyopt(12)=4, [...]
新加坡第一个生物PHD出租司机
当时，我就震惊了。look
司机老兄的blog