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GHS Port Reference Center
Information for maritime designers, engineers and builders Maintained by Creative Systems, Inc., Creators of GHS Click here for information about GHS and other fine marine software. |
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`Prototype run file for generating a composite max VCG curve.
`Includes intact and damage.
`This can be used as a pattern for composite max VCG work.
project mxproto
read fv
report
\\\\\\\\
\Maximum VCG Curves\
macro mx
`maxvcg 3, 3.5 ... 7 /lcg:5f,4f,3f %1
maxvcg displ=47.24,63.04,...,202.32 /lcg:5f,4f,...,3 %1
/
`Intact criterion:
macro Ilim
units mt
LIMIT OFF
LIMIT AREA FROM 0 TO 30 > 0.055
LIMIT AREA FROM 0 TO 40 OR FLD > 0.090
LIMIT AREA FROM 30 TO 40 OR FLD > 0.030
LIMIT GM UPRIGHT > 0.150
units lt
/
macro int
subtitle
\
\Intact\
page
.Ilim
.mx "/ID:INT"
/
`Damage criterion:
macro Dlim
LIMIT OFF
LIMIT ANGLE FROM EQUIL TO RA0 > 20
LIMIT ABSOLUTE ANGLE AT EQUIL < 25
LIMIT ANGLE FROM EQUIL TO FLD > 0
/
macro mxdam
type (*) intact /quiet
subtitle
\
\Damaged: %1\
type (%1) flood
.mx "/ID: DAM%2 /composite"
/
macro mxfinal
type (*) intact /quiet
subtitle
\
\Composite\
.mx "/lookup"
/
macro dam
.Dlim
.mxdam "wt1.s,wt2.s" "1,2"
.mxdam "wt2.s, wt3.s" "2,3"
/
`Intact:
.int
`All damage zones:
.dam
`Composite:
.mxfinal
write (maxvcg) {project}.sav
`Check conditions:
macro cond
solve
vcg max
solve
subtitle
\
\%1 condition at max VCG\
page
maxvcg /print
status ghs
heel 0
ra /fsm /lim:att
/
macro lookup
vcg 0
maxvcg draft=3,4,...,7 /trim:-.25,0,.25 /lookup
/
`Light ship:
weight 90.0
lcg 3.5f
`Load:
load (wt*) 0.98
.Ilim
maxvcg valid
.cond "Departure"
.lookup
print preview
report off
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