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楼主 |
发表于 2011-9-1 09:48:36
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来自 广西柳州
关键部分程序发送上来,供大家指教哪儿有问题
% FE-ANALYSIS
[U]=FE(nelx,nely,x,penal,m);
% OBJECTIVE FUNCTION AND SENSITIVITY ANALYSIS,先求解c,下面一段敏度分析需要用到c值
[KE] = lk;
cx = 0.;
cy = 0.;
for ely = 1:nely
for elx = 1:nelx
n1 = (nely+1)*(elx-1)+ely;
n2 = (nely+1)* elx +ely;
%%%% Compliant Mechanisms for MEMS
UeX = U([2*n1-1;2*n1; 2*n2-1;2*n2; 2*n2+1;2*n2+2; 2*n1+1;2*n1+2],1);
UeY = U([2*n1-1;2*n1; 2*n2-1;2*n2; 2*n2+1;2*n2+2; 2*n1+1;2*n1+2],2);
cx = cx + x(ely,elx,m)^penal*UeX'*KE*UeX;
cy = cy + x(ely,elx,m)^penal*UeY'*KE*UeY;
end
end
c=cy/cx;
% OBJECTIVE FUNCTION AND SENSITIVITY ANALYSIS求解敏度
[KE] = lk;
cx = 0.;
cy = 0.;
for ely = 1:nely
for elx = 1:nelx
n1 = (nely+1)*(elx-1)+ely;
n2 = (nely+1)* elx +ely;
%%%% Compliant Mechanisms for MEMS
UeX = U([2*n1-1;2*n1; 2*n2-1;2*n2; 2*n2+1;2*n2+2; 2*n1+1;2*n1+2],1);
UeY = U([2*n1-1;2*n1; 2*n2-1;2*n2; 2*n2+1;2*n2+2; 2*n1+1;2*n1+2],2);
cx = cx + x(ely,elx,m)^penal*UeX'*KE*UeX;
cy = cy + x(ely,elx,m)^penal*UeY'*KE*UeY;
dcx(ely,elx) = -penal*x(ely,elx,m)^(penal-1)*UeX'*KE*UeX;
dcy(ely,elx) = -penal*x(ely,elx,m)^(penal-1)*UeY'*KE*UeY;
dc(ely,elx) =dcy(ely,elx)/cx+(c*dcx(ely,elx)/cx);
end
end |
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