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xbl37379

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ÕâÊÇmatlab?Ϊɶ»¹Åª¸ödisp,ÄѵÀdispÊǸöÐÐÏòÁ¿£¬Äã¿´¿´£¬ÊDz»ÊÇ×¼±¸»­Í¼¿´µü´úÊÕÁ²£¬´´½¨Ò»¸öÐÐÏòÁ¿ÊÇΪÁË¿ØÖÆÄ³¸ö±äÁ¿µÄ³¤¶È£¬È·ÊµÈÃÈ˷ѽâ

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5Â¥2014-08-24 10:43:54
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hytao2012

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3Â¥2014-08-23 16:18:04
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wy515077587

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ÒýÓûØÌû:
3Â¥: Originally posted by hytao2012 at 2014-08-23 16:18:04
ÄãÕâ³ÌÐòûÎÊÌ⣿¸Ð¾õÕâ¾ä»°Óë±¾ÒâÎ¥±³¡£
Õâ¾ä»°µÄʵ¼ÊЧ¹ûÊÇ´´½¨Ò»¸ö5*£¨jdx*jdy£©µÄ¾ØÕó£¬ÇÒÁîÿһ¸öÖµ¶¼µÈÓÚ1
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4Â¥2014-08-24 10:05:37
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wy515077587

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by xbl37379 at 2014-08-24 10:43:54
ÕâÊÇmatlab?Ϊɶ»¹Åª¸ödisp,ÄѵÀdispÊǸöÐÐÏòÁ¿£¬Äã¿´¿´£¬ÊDz»ÊÇ×¼±¸»­Í¼¿´µü´úÊÕÁ²£¬´´½¨Ò»¸öÐÐÏòÁ¿ÊÇΪÁË¿ØÖÆÄ³¸ö±äÁ¿µÄ³¤¶È£¬È·ÊµÈÃÈ˷ѽâ

clear
syms E poisson density t lx ly
jdx=11;               %number of nodes in x direction
jdy=11;               %number of nodes in y direction

k(1:110*5,1:110*5)=0;     %system stiffness matrix
m(1:110*5,1:110*5)=0;     %system mass matrix
D_k(1:110*5,1:110*5)=0;     %¸Õ¶È¾ØÕóµÄµ¼Êý
D_m(1:110*5,1:110*5)=0;     %ÖÊÁ¿¾ØÕóµÄµ¼Êý

%prepare the arrays containing numbers of nodes needed to describe this problem
en(1:100,1:4)=0;       %element node  
for ni=1:jdx-1
    for nj=1:jdy-1
        en(ni+(nj-1)*(jdx-1),1)=ni+(nj-1)*jdx;
        en(ni+(nj-1)*(jdx-1),2)=ni+1+(nj-1)*jdx;
        en(ni+(nj-1)*(jdx-1),4)=ni+nj*jdx;
        en(ni+(nj-1)*(jdx-1),3)=ni+1+nj*jdx;
    end
end
%constraints for boundary conditions
disp(1:jdx*jdy,1:5)=1;      % node displacement
constraints=1:jdx:jdx*jdy; % constraints for boudaries
disp(constraints,=0;
dof=0;                  
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6Â¥2014-08-24 10:50:20
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