计算结构力学自编平面桁架

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平面桁架

程序:

#include "stdio.h"

#include "math.h"

#define unitmax 30

#define pointmax 30

#define matermax 10

#define Pmaxnum 20

#define bindmax 20

main()

{

int unit[unitmax][4],bind[bindmax][3],number[5];

float point[pointmax][2],material[matermax][2],P[Pmaxnum][3];

float allarray[pointmax*2][pointmax*2];

void readdata(int unit[unitmax][4],float point[pointmax][2],int number[5],

int bind[bindmax][3],float material[matermax][2],float P[Pmaxnum][3]);

void all(float point[pointmax][2],int unit[unitmax][4],float material[matermax][2], int number[5],float allarray[][pointmax*2]);

void equa(float allarray[][pointmax*2],float P[Pmaxnum][3],int bind[][3],

int number[]);

void result(int unit[unitmax][4],float point[pointmax][2],int number[5],

float material[matermax][2],float allarray[][pointmax*2]);

readdata(unit,point,number,bind,material,P);

all(point,unit,material,number,allarray);

equa(allarray,P,bind,number);

result(unit,point,number,material,allarray);

}

/******************************************************************/ void readdata(int unit[unitmax][4],float point[pointmax][2],int number[5],

int bind[bindmax][3],float material[matermax][2],float P[Pmaxnum][3])

{

FILE *fp;

int pointnum,unitnum,maternum,Pnum,bindnum,no_use,i,j,k,n,m;

if((fp=fopen("data.txt","r"))==NULL)

{printf("data file can't be opened,please create it");

exit(0);return;}

for(i=0;i<=4;i++)

if(fscanf(fp,"%d",&number[i])==EOF)

{printf("file error");fclose(fp);}

pointnum=number[0];

unitnum=number[1] ;

maternum=number[2];

Pnum=number[3];

bindnum=number[4];

for(i=0;i

fscanf(fp,"%d %f %f",&k,&point[i][0],&point[i][1]);

for(i=0;i

if(fscanf(fp,"%d %d %d %d\n",&unit[i][0],&unit[i][1],&unit[i][2],&unit[i][3])==EOF) {printf("file error\n");fclose(fp);}

for(i=0;i

if(fscanf(fp,"%d %g %g\n",&k,&material[i][0],&material[i][1])==EOF)

{printf("file error\n");fclose(fp);}

for(i=0;i

fscanf(fp,"%d %f %f %f\n",&k,&P[i][0],&P[i][1],&P[i][2]);

for(i=0;i

if(fscanf(fp,"%d %d %d %d\n",&k,&bind[i][0],&bind[i][1],&bind[i][2])==EOF)

{printf("file error\n");fclose(fp);}

fclose(fp);

return;

}

/*OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOPPPPPPPPPPPPPPPPP*/

void all(float point[pointmax][2],int unit[unitmax][4],float material[matermax][2],

int number[5],float allarray[][pointmax*2])

{

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