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#pragma once
#include <stdio.h>
#include <math.h>
#include "slv_c_utils.h"
double A;
adams_c_Cnfsub    Cnfsub;
void Cnfsub(const struct sAdamsContactFriction* cnf, double time,  const double* loci, const double* ni,
     const double* locj,const double* nj, double gap, double gapdot,double gapdotdot,
     double area, int dflag, int iflag, double* force)
{
       if(iflag) ;
     else
     {
         double K = *(cnf->PAR+0);
         double E = *(cnf->PAR+1);
         double C = *(cnf->PAR+2);
         double v = *(cnf->PAR+3);
         if(gap<=0&&gapdot<=0)
         {
             force[0]=max(0,K*pow(-gap,E));
              
        if(gapdot==0)
         {
     A=gap;
         }
         }
         if(gap<=0&&gapdot>0)
         {
             force[0]=max(0,pow(C,-2*E)*K*pow(-gap+(1-pow(C,2))*A,E));
         }
         if(gap>0)
         {
             force[0]=0;
         }
     }
}
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jjdg: ½ð±Ò+1, ¸Ðл²ÎÓë 2018-04-27 22:44:20
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