应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜    

小木虫论坛-学术科研互动平台 » 计算模拟区 » 程序语言 » MATLAB/Mathematica » Attempted to access (10.5185); index must be a positive integer or logical.
31/1返回列表
查看: 681  |  回复: 2
只看楼主 @他人 存档 新回复提醒 (忽略) 收藏    在APP中查看

竿竿儿

新虫 (小有名气)

[求助] Attempted to access (10.5185); index must be a positive integer or logical. 已有1人参与

如题，是我运行matlab时出现的错误，我并没有用矩阵，只是进行的简单运算。10.5185是x11的值。
程序如下：
a1=2;
m1=1;m2=1;m3=1;m4=1;
b=1.2;
A_fy=0.392;
beta0_23=0.2858;
beta1_23=1.667;
beta0_14=0.01958;
beta1_14=1.113;
beta0_13=0.0765;
beta1_13=0.2664;
Cfy_23=-0.00130;
Cfy_14=0.00497;
Cfy_13=0.00127;
pusy_134=0.0014;
theta_34=0.02;
I=0.5*(m1+4*m2+m3+4*m4);
x12=6*1*2*A_fy*I^0.5;
x11=6*1*1*A_fy*I^0.5;
x22=6*2*2*A_fy*I^0.5;
x34=6*(-1)*(-2)*A_fy*I^0.5;
x33=6*(-1)*(-1)*A_fy*I^0.5;
x44=6*(-2)*(-2)*A_fy*I^0.5;
Z=2*m2+m1;
f_r=-A_fy*(I^0.5/(1+b*I^0.5)+2*log(1+b*I^0.5)/b);
g1=2*(a1*I^0.5)^(-2)*(1-(1+a1*I^0.5)*exp(-a1*I^0.5));
dg1=-2*(a1*I^0.5)^(-2)*(1-(1+a1*I^0.5+0.5*(a1*I^0.5)^2)*exp(-a1*I^0.5));
B_23=2*beta0_23+beta1_23*g1;
B_14=2*beta0_14+beta1_14*g1;
B_13=2*beta0_13+beta1_13*g1;
C_23=Cfy_23/(2*2^0.5);
C_14=Cfy_14/(2*2^0.5);
C_13=Cfy_13/(2*2^0.5);
dB_23=beta1_23*dg1/I;
dB_14=beta1_14*dg1/I;
dB_13=beta1_13*dg1/I;
y1=m3*(B_23+Z*C_23+theta_34);
y2=m1*(B_14+Z*C_14);
y3=m2*m3*(4*dB_23+2*C_23);
y4=m1*m3*(4*dB_13+2*C_13);
y5=m1*m4*(4*dB_14+0.5*(4*C_14+pusy_134));
J(x12)=x12*(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-1);
J(x11)=x11*(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-1);
J(x22)=x22*(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-1);
J(x34)=x34*(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-1);
J(x33)=x33*(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-1);
J(x44)=x44*(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-1);
Etheta_12=(2/(4*I))*(J(x12)-J(x11)/2-J(x22)/2);
Etheta_34=(2/(4*I))*(J(x34)-J(x33)/2-J(x44)/2);
dJ(x12)=(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-1)+(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-2)*(4.581*x12*exp(-0.012*x12^0.528)*(0.7237*x12^(-4.581-1)+0.012*0.528*x12^(0.528-1)*x12^(-0.7237)));
dJ(x11)=(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-1)+(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-2)*(4.581*x11*exp(-0.012*x11^0.528)*(0.7237*x11^(-4.581-1)+0.012*0.528*x11^(0.528-1)*x11^(-0.7237)));
dJ(x22)=(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-1)+(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-2)*(4.581*x22*exp(-0.012*x22^0.528)*(0.7237*x22^(-4.581-1)+0.012*0.528*x22^(0.528-1)*x22^(-0.7237)));
dJ(x34)=(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-1)+(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-2)*(4.581*x12*exp(-0.012*x34^0.528)*(0.7237*x34^(-4.581-1)+0.012*0.528*x34^(0.528-1)*x34^(-0.7237)));
dJ(x33)=(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-1)+(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-2)*(4.581*x12*exp(-0.012*x33^0.528)*(0.7237*x33^(-4.581-1)+0.012*0.528*x33^(0.528-1)*x33^(-0.7237)));
dJ(x44)=(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-1)+(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-2)*(4.581*x12*exp(-0.012*x44^0.528)*(0.7237*x44^(-4.581-1)+0.012*0.528*x44^(0.528-1)*x44^(-0.7237)));
dtheta_12=-(theta_12/I)+(2/(8*I^2))*(x12*dJ(x12)-x11*dJ(x11)/2-x22*dJ(x22)/2);
dtheta_34=-(theta_34/I)+(2/(8*I^2))*(x34*dJ(x34)-x33*dJ(x33)/2-x44*dJ(x44)/2);
y=4*f_r+y1+y2+y3+y4+y5+4*m2*m1*dtheta_12+4*m3*m4*dtheta_34;
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐，对您同样有帮助:
1楼 2014-05-05 16:06:48
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

notshuaige

银虫 (小有名气)

【答案】应助回帖

★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
竿竿儿: 金币+5, ★★★★★最佳答案 2014-05-05 16:39:34
xzhdty: 金币+1, 感谢参与应助 2014-05-06 07:22:40
已改好，楼主试试看

a1=2;
m1=1;m2=1;m3=1;m4=1;
b=1.2;
A_fy=0.392;
beta0_23=0.2858;
beta1_23=1.667;
beta0_14=0.01958;
beta1_14=1.113;
beta0_13=0.0765;
beta1_13=0.2664;
Cfy_23=-0.00130;
Cfy_14=0.00497;
Cfy_13=0.00127;
pusy_134=0.0014;
theta_34=0.02;
I=0.5*(m1+4*m2+m3+4*m4);
x12=6*1*2*A_fy*I^0.5;
x11=6*1*1*A_fy*I^0.5;
x22=6*2*2*A_fy*I^0.5;
x34=6*(-1)*(-2)*A_fy*I^0.5;
x33=6*(-1)*(-1)*A_fy*I^0.5;
x44=6*(-2)*(-2)*A_fy*I^0.5;
Z=2*m2+m1;
f_r=-A_fy*(I^0.5/(1+b*I^0.5)+2*log(1+b*I^0.5)/b);
g1=2*(a1*I^0.5)^(-2)*(1-(1+a1*I^0.5)*exp(-a1*I^0.5));
dg1=-2*(a1*I^0.5)^(-2)*(1-(1+a1*I^0.5+0.5*(a1*I^0.5)^2)*exp(-a1*I^0.5));
B_23=2*beta0_23+beta1_23*g1;
B_14=2*beta0_14+beta1_14*g1;
B_13=2*beta0_13+beta1_13*g1;
C_23=Cfy_23/(2*2^0.5);
C_14=Cfy_14/(2*2^0.5);
C_13=Cfy_13/(2*2^0.5);
dB_23=beta1_23*dg1/I;
dB_14=beta1_14*dg1/I;
dB_13=beta1_13*dg1/I;
y1=m3*(B_23+Z*C_23+theta_34);
y2=m1*(B_14+Z*C_14);
y3=m2*m3*(4*dB_23+2*C_23);
y4=m1*m3*(4*dB_13+2*C_13);
y5=m1*m4*(4*dB_14+0.5*(4*C_14+pusy_134));
J(1,2)=x12*(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-1);
J(1,1)=x11*(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-1);
J(2,2)=x22*(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-1);
J(3,4)=x34*(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-1);
J(3,3)=x33*(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-1);
J(4,4)=x44*(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-1);
Etheta_12=(2/(4*I))*(J(1,2)-J(1,1)/2-J(2,2)/2);
Etheta_34=(2/(4*I))*(J(3,4)-J(3,3)/2-J(4,4)/2);
dJ(1,2)=(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-1)+(4+4.581*x12^(-0.7237)*exp(-0.012*x12^0.528))^(-2)*(4.581*x12*exp(-0.012*x12^0.528)*(0.7237*x12^(-4.581-1)+0.012*0.528*x12^(0.528-1)*x12^(-0.7237)));
dJ(1,1)=(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-1)+(4+4.581*x11^(-0.7237)*exp(-0.012*x11^0.528))^(-2)*(4.581*x11*exp(-0.012*x11^0.528)*(0.7237*x11^(-4.581-1)+0.012*0.528*x11^(0.528-1)*x11^(-0.7237)));
dJ(2,2)=(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-1)+(4+4.581*x22^(-0.7237)*exp(-0.012*x22^0.528))^(-2)*(4.581*x22*exp(-0.012*x22^0.528)*(0.7237*x22^(-4.581-1)+0.012*0.528*x22^(0.528-1)*x22^(-0.7237)));
dJ(3,4)=(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-1)+(4+4.581*x34^(-0.7237)*exp(-0.012*x34^0.528))^(-2)*(4.581*x12*exp(-0.012*x34^0.528)*(0.7237*x34^(-4.581-1)+0.012*0.528*x34^(0.528-1)*x34^(-0.7237)));
dJ(3,3)=(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-1)+(4+4.581*x33^(-0.7237)*exp(-0.012*x33^0.528))^(-2)*(4.581*x12*exp(-0.012*x33^0.528)*(0.7237*x33^(-4.581-1)+0.012*0.528*x33^(0.528-1)*x33^(-0.7237)));
dJ(4,4)=(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-1)+(4+4.581*x44^(-0.7237)*exp(-0.012*x44^0.528))^(-2)*(4.581*x12*exp(-0.012*x44^0.528)*(0.7237*x44^(-4.581-1)+0.012*0.528*x44^(0.528-1)*x44^(-0.7237)));
dtheta_12=-(Etheta_12/I)+(2/(8*I^2))*(x12*dJ(1,2)-x11*dJ(1,1)/2-x22*dJ(2,2)/2);
dtheta_34=-(Etheta_34/I)+(2/(8*I^2))*(x34*dJ(3,4)-x33*dJ(3,3)/2-x44*dJ(4,4)/2);
y=4*f_r+y1+y2+y3+y4+y5+4*m2*m1*dtheta_12+4*m3*m4*dtheta_34;

话说感觉像是求亚可比矩阵……

[ 发自手机版 http://muchong.com/3g ]
赞一下 回复此楼
2楼2014-05-05 16:16:44
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

竿竿儿

新虫 (小有名气)
引用回帖:
2楼: Originally posted by notshuaige at 2014-05-05 16:16:44
已改好，楼主试试看

a1=2;
m1=1;m2=1;m3=1;m4=1;
b=1.2;
A_fy=0.392;
beta0_23=0.2858;
beta1_23=1.667;
beta0_14=0.01958;
beta1_14=1.113;
beta0_13=0.0765;
beta1_13=0.2664;
Cfy_23=-0.00130;
Cf ...

太感谢了，我不太懂矩阵。
赞一下 回复此楼
3楼2014-05-05 16:39:56
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 竿竿儿 的主题更新
31/1返回列表
普通表情 龙 兔 虎 猫
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 一志愿西安交通大学材料工程专业 282分求调剂 +5 枫桥ZL 2026-03-18 7/350 2026-03-19 14:52 by 功夫疯狂
[考研] 化学求调剂 +3 临泽境llllll 2026-03-17 4/200 2026-03-19 13:59 by houyaoxu
[考研] 0703化学调剂 +5 pupcoco 2026-03-17 8/400 2026-03-19 13:58 by houyaoxu
[考研] 一志愿南昌大学，327分，材料与化工085600 +3 Ncdx123456 2026-03-19 3/150 2026-03-19 13:18 by houyaoxu
[考研] 材料080500调剂求收留 +4 一颗meteor 2026-03-13 4/200 2026-03-19 10:32 by 30660438
[考研] 一志愿985，本科211，0817化学工程与技术319求调剂 +10 Liwangman 2026-03-15 10/500 2026-03-19 10:25 by 无际的草原
[考研] 0817调剂 +3 没有答案_ 2026-03-14 3/150 2026-03-19 09:51 by Xu de nuo
[考研] 328求调剂，英语六级551，有科研经历 +3 生物工程调剂 2026-03-17 7/350 2026-03-18 20:41 by Wangjingyue
[考研] 331求调剂（0703有机化学 +7 ZY-05 2026-03-13 8/400 2026-03-18 14:13 by 007_lilei
[考研] 304求调剂 +12 小熊joy 2026-03-14 13/650 2026-03-18 12:34 by Linda Hu
[考研] 301求调剂 +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[考研] 326求调剂 +5 上岸的小葡 2026-03-15 6/300 2026-03-17 17:26 by ruiyingmiao
[硕博家园] 湖北工业大学 生命科学与健康学院-课题组招收2026级食品/生物方向硕士 +3 1喜春8 2026-03-17 5/250 2026-03-17 17:18 by ber川cool子
[考研] 材料专硕326求调剂 +6 墨煜姒莘 2026-03-15 7/350 2026-03-17 17:10 by ruiyingmiao
[考研] 有没有道铁/土木的想调剂南林，给自己招师弟中～ +3 TqlXswl 2026-03-16 7/350 2026-03-17 15:23 by TqlXswl
[考研] 一志愿，福州大学材料专硕339分求调剂 +3 木子momo青争 2026-03-15 3/150 2026-03-17 07:52 by laoshidan
[考研] 283求调剂 +3 听风就是雨； 2026-03-16 3/150 2026-03-17 07:41 by 热情沙漠
[考研] 304求调剂 +3 曼殊2266 2026-03-14 3/150 2026-03-16 16:39 by houyaoxu
[考研] 0703化学调剂 290分有科研经历，论文在投 +7 腻腻gk 2026-03-14 7/350 2026-03-16 10:12 by houyaoxu
[考研] 中科大材料专硕319求调剂 +3 孟鑫材料 2026-03-13 3/150 2026-03-14 18:10 by houyaoxu
信息提示
关闭
请填处理意见
关闭