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!CONTACT_PARAM

Specify contact scan parameter set.

Parameter

Parameter Name Attribution Contents
NAME C Contact scan parameter set name (required)

** 2nd line **

Specify clearance values in in-surface directions.

(2nd line) CLEARANCE, CLR_SAME_ELEM, CLR_DIFFLPOS, CLR_CAL_NORM
Parameter Name Attribution Contents
CLEARANCE R ordinary clearance (Default: 1e-2)
CLR_SAME_ELEM R clearance for already-in-contact elems (loosen to avoid moving too easily) (Default: 5e-3)
CLR_DIFFLPOS R clearance to be recognized as different position (loosen to avoid oscillation) (Default: 1e-2)
CLR_CAL_NORM R clearance used when calculating surface normal (Default: 1e-4)

** 3rd line **

Specify clearance values in directions vertical to the surface.

(3rd line) DISTCLR_INIT, DISTCLR_FREE, DISTCLR_NOCHECK, TENSILE_FORCE, BOX_EXP_RATE
Parameter Name Attribution Contents
DISTCLR_INIT R dist clearance for initial scan (Default: 1e-2)
DISTCLR_FREE R dist clearance for free nodes (wait until little penetration to be judged as contact) (Default: -1e-6)
DISTCLR_NOCHECK R dist clearance for skipping distance check for nodes already in contact (big value to keep contact because contact-to-free is judged by tensile force) (Default: 1.0)
TENSILE_FORCE R tensile force to be judged as free node (Default: -1e-2)
BOX_EXP_RATE R expansion rate of the box used for contact scan (the smaller the faster, the bigger the safer) (Default: 1.05)

Example of Use

With the same settings as the default settings

!CONTACT_PARAM, NAME=CPARAM1
1.0e-2,  5.0e-3,  1.0e-2,  1.0e-4
1.0e-2, -1.0e-6,  1.0,    -1.0e-2,  1.05