基本信息
源码名称:求螺旋桨推力系数(KT2.m)
源码大小:2.00KB
文件格式:.m
开发语言:MATLAB
更新时间:2021-02-22
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源码介绍
function kt = KT2(J, PD, AEAO)
conn = database("Propdb","aaa","123456");
cursor1 = exec(conn, "select * from MAU4_40KT");
result = fetch(cursor1);
temp = result.Data;
mau4_40_pd_value =cell2mat(temp(:,5));
mau4_40_pd_value=mau4_40_pd_value(end:-1:1);
MAU4_40KT =cell2mat(temp(:,7:2:end));
MAU4_40KT(find(isnan(MAU4_40KT)==1))= 0;
close(cursor1);
cursor2 = exec(conn, "select * from MAU4_55KT");
result = fetch(cursor2);
temp = result.Data;
mau4_55_pd_value =cell2mat(temp(:,5));
mau4_55_pd_value=mau4_55_pd_value(end:-1:1);
MAU4_55KT =cell2mat(temp(:,7:2:end));
MAU4_55KT(find(isnan(MAU4_55KT)==1))= 0;
close(cursor2);
cursor3 = exec(conn, "select * from MAU4_70KT");
result = fetch(cursor3);
temp = result.Data;
mau4_70_pd_value =cell2mat(temp(:,5));
mau4_70_pd_value=mau4_70_pd_value(end:-1:1);
MAU4_70KT =cell2mat(temp(:,7:2:end));
MAU4_70KT(find(isnan(MAU4_70KT)==1))= 0;
close(cursor3);
close(conn);
[c40,r40] = size(MAU4_40KT);
z1 = [];
z2 = [];
z3 = [];
for i=1:c40
z1(c40 1-i,:) = MAU4_40KT(i,:);
end
[c55,r55] = size(MAU4_55KT);
for i=1:c55
z2(c55 1-i,:) = MAU4_55KT(i,:);
end
[c70,r70] = size(MAU4_70KT);
for i=1:c70
z3(c55 1-i,:) = MAU4_70KT(i,:);
end
x_kt40 = 0:0.1:0.1*(r40-1);
Kt40=[];
for i=1:c40
Kt40(i) = interp1(x_kt40,z1(i,:),J);
end
KT40_res = interp1(mau4_40_pd_value,Kt40,PD);
x_kt55 = 0:0.1:0.1*(r55-1);
Kt55=[];
for i=1:c55
Kt55(i) = interp1(x_kt55,z2(i,:),J);
end
KT55_res = interp1(mau4_55_pd_value,Kt55,PD);
x_kt70 = 0:0.1:0.1*(r70-1);
Kt70=[];
for i=1:c70
Kt70(i) = interp1(x_kt70,z3(i,:),J);
end
KT70_res = interp1(mau4_70_pd_value,Kt70,PD);
AE = [0.4,0.55,0.7];
tempres = interp1(AE,[KT40_res,KT55_res,KT70_res],AEAO);
kt = tempres;
end