À©É¢ÎÊÌ⣬ÆäÖÐÓÐÓ¦Á¦³¡×÷Óá£ÔÚ½¨Á¢ÕûÌå¾ØÕóʱ£¨²»ÖªµÀ¸Ã½ÐʲôÃû×Ö£©ËٶȺÜÂý¡£ÏÈÌù¶Î´úÂ룬¾ÍÕâ¶ÎÌرðÂý¡£
UK1=zeros(NodeNum,NodeNum);%NodeNum=443 ÊǽڵãÊýÁ¿
UK2=zeros(NodeNum,NodeNum);
%²»ÖªµÀ×é×°ÕûÌå¾ØÕóµÄ·½·¨¶Ô²»¶Ô£¬ÎÒÊǰѵ¥Ôª¾ØÕóµÄÔªËطŵ½ÕûÌå¾ØÕó¶ÔÓ¦µÄ½ÚµãλÖÃÉÏ£¬ÀÛ¼Ó¡£ÕâÊDz»Êǽй±Ï×·¨£¿
for EN=1:EleNum%EleNum=401µ¥ÔªÊýÁ¿
Bi=subs(B,{x1,x2,x3,x4,y1,y2,y3,y4},...%{C,x C,y}T=[B]{C}£¬{C}Êǵ¥ÔªµÄËĸö½ÚµãŨ¶È£¬B¾ÍÊÇÇóCÌݶȵľØÕó¡£BÖбäÁ¿ÓУ¬µ¥Ôª¾Ö²¿×ø±êxi ºÍ eta£¬ÕûÌå×ø±ê{x1,x2,x3,x4,y1,y2,y3,y4}
{Node(Elem(EN,2),2),Node(Elem(EN,3),2),Node(Elem(EN,4),2),Node(Elem(EN,5),2),...
Node(Elem(EN,2),3),Node(Elem(EN,3),3),Node(Elem(EN,4),3),Node(Elem(EN,5),3)});
Press=[Pressure(Elem(EN,2),2),Pressure(Elem(EN,3),2),Pressure(Elem(EN,4),2),Pressure(Elem(EN,5),2)]';%PressureÊǽڵãÓ¦Á¦¾ØÕó¡£µÚÒ»ÁÐÊǽڵãºÅ£¬µÚ¶þÁÐÊÇÓ¦Á¦Öµ£¬
%Node£¨£©Êǽڵã×ø±ê¾ØÕ󣬵ÚÒ»ÁÐÊDZàºÅ£¬µÚ¶þÁкÍÈýÁÐÊÇx y×ø±ê¡£Elem£¨£©Êǵ¥Ôª¾ØÕ󣬵ÚÒ»ÁÐÊǵ¥Ôª±àºÅ£¬µÚ2ÖÁ5ÁÐÊÇËĸö½ÚµãµÄ±àºÅ¡£
%Õâ¶ÎÎÒÊÇÏë°Ñÿ¸öµ¥Ôª½ÚµãµÄ×ø±ê´úÈëB£¬ÏÂÀ´¾Í¿ÉÒÔ¶Ôxi ºÍ eta»ý·ÖÁË¡£
dK1=Bi'*Bi;
dK2=Bi'*VH/R/T*Bi*Press*A; %VH/R/T¶¼Êdz£Êý£¬Pressÿ¸öÔغɲ½Òª±ä¡ª¡ª£¡
%»ý·ÖK1
[r,c]=size(dK1);
K1=zeros(r,c);
for m=1:r
for n=1:c
dk1=matlabFunction(dK1(m,n));
K1(m,n)=dblquad(dk1,-1,1,-1,1);
end
end
%»ý·ÖK2
[r,c]=size(dK2);
K2=zeros(r,c);
for m=1:r
for n=1:c
dk2=matlabFunction(dK2(m,n));
K2(m,n)=dblquad(dk2,-1,1,-1,1);
end
end
%×é×°UK1£¬UK2
UK1Loc=Elem(EN,2:5); %È·¶¨×ÜÌå¾ØÕóÖеĴæ·ÅλÖÃ
for i=1:4
for j=1:4
UK1(UK1Loc(1,i),UK1Loc(1,j))=UK1(UK1Loc(1,i),UK1Loc(1,j))+K1(i,j);
UK2(UK1Loc(1,i),UK1Loc(1,j))=UK2(UK1Loc(1,i),UK1Loc(1,j))+K2(i,j);
end
end
%UK×é×°Íê±Ï
end
%%%%%%%%%½áÊø
UK1Ò²¾Í°ÕÁË£¬×é×°Ò»´ÎÒ²¾ÍÐÐÁË£¬ÒÔºó²»»á±ä¡£µ«UK2ÖÐÓиöPressÊÇÿ¸öÔغɲ½Òª±ä¡£
dK2=Bi'*VH/R/T*Bi*Press*A;
[r,c]=size(dK2);
K2=zeros(r,c);
for m=1:r
for n=1:c
dk2=matlabFunction(dK2(m,n));
K2(m,n)=dblquad(dk2,-1,1,-1,1);
end
end
ÕâÑùÿ¸öÔغɲ½¶¼ÒªÇóÒ»´ÎK2£¬¶øÿ´ÎÇ󶼻áºÜÂý¡£
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2¡¢»ý·ÖÓÐûÓиü¿ìµÄ·½·¨¡£
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