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·Ö¶Îº¯Êý±à³Ì #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; } } } ÕâÊÇÒ»¸ö¹ý³Ì£¬Ò²¾ÍÊÇ˵»áÏÈÂú×ãµÚÒ»¸öifÓï¾äÖеÄÌõ¼þ£¨gapdot>=0È»ºó<0£©ÎÒÒªÔÚgapdot>0ʱʹÓÃgapdot==0ʱµÄ½á¹û£¬ÎÒ³ÌÐòÖÐÊǰÑgapdot=0ʱµÄ½á¹û¸³Öµ¸ø±äÁ¿A£¬È»ºóµ÷Ó㬵«ÊǺÃÏñ²»ÐУ¬ÕâÊÇÔõô»ØÊ£¬ÓдóÉñÂ𣿠|
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