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Find the angle of dynamic limit for damage cases |

proj dynlim clear `--- INTACT CONDITION --- read fv we 250,-2,0,8 so report \\{+B}Run file to find the angle of dynamic limit for damage cases.\ \\\{+B}Intact Condition\ | \ st `--- FLOODING CASE MACRO--- macro fldset1 page \\{+B}Finding the angle of dynamic limit\ \{+B}Condition with flooding in tanks: %1\ | \ type (*) int type (%1) flood so st / `--- MACRO TO FIND THE ANGLE WHERE THE AREA UNDER THE CURVE EQUALS ZERO --- macro dynlim so if {heel} > -0.1 then if {heel} < 0.1 then \{+B}Calculation not applicable. ,, Damaged equilibrium angle too small. | exit vari a, b, low, mid, high=50`adjust high to be larger than the largest possible solution vari limatt1, limatt2, limatt3 set low = {heel} plus 0.001 set mid = {low} plus {high} div 2 limit(1) residual ratio from abs 0 to abs {low} > 1 limit(2) residual ratio from abs 0 to abs {mid} > 1 limit(3) residual ratio from abs 0 to abs {high} > 1 ra /lim:att /noprint `comment out the /noprint to see the initial RA setup macro binfind if {limatt2} > 1 then set high = {mid} else set low = {mid} set mid = {low} plus {high} div 2 limit(1) residual ratio from abs 0 to abs {low} > 1 limit(2) residual ratio from abs 0 to abs {mid} > 1 limit(3) residual ratio from abs 0 to abs {high} > 1 ra /lim:att /noprint`comment out the /noprint to see the binary search if {limatt2} < 1 then exit .binfind if {limatt2} > 1 then if {limatt2} < 1.005 then exit else exit .binfind // .binfind limit(1) off limit(3) off ra /lim \{+B}The angle where the residual ratio = 1, is {mid}\ / .fldset1 "WT1.S, WT2.S" .dynlim .fldset1 "FOREPEAK.C" .dynlim print preview report off |

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