非线性解决方案与7个万博尤文图斯变量初始猜测是不工作的程序

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Adithya Valavi 2020年5月4日

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//www.tianjin-qmedu.com/matlabcentral/answers/522953-nonlinear-万博尤文图斯solutions-with-7-variables-my-initial-guess-is-not-working-in-the-program

关闭:darova 2020年5月4日

信谊G;

G = 600:100:1200;

disp (G)

x0 =(310 310 310 311 309 300 300), %的初始猜测

选择= optimoptions (“fsolve”,“显示”,“关闭”);

X = 0(1、长度(G));%使用X, X (i),而是与零初始化

i = 1:长度(G) %循环计数器从1开始

fsol = fsolve (@ (x万博尤文图斯) solutionsproblem (x), G (i)), x0,选项);

X(我:)= fsol;结束

一号= x (: 1);Tg2 = x (:, 2);Ta = x (:, 3);Tl = x (:, 4);Tf = x (: 5);结核病= x (: 6);Th = x (: 7);

                         disp (X);
                        
                         函数F = 万博 尤文图斯solutionsproblem (x, G)
                        
                         信谊N;

信谊;

%给常量赋值

N = 15;

= 1;

一号= 300;

Tg2 = 301.5;

Ta = 305.8;

Tl = 302;

Tf = 302;

结核病= 302;

Th = 300;

F (1) = 0.0425 * G + 1.417 * 10 ^ (8) * x (2) ^ (4) + 0.95 * x (2) - 1.967 * 10 ^ (8) * x (1) ^ (4) + 1098.572 - 2404.5 * x(1) + 2400 *号;

F (2) = 0.0204 * G + (-4.888 * 10 ^ (8) - 7.709 * 10 ^ (-11) * N *) * x (2) ^ (4) + 1.41 * 10 ^ (8) * x (1) ^ (4) + 4.54 * 10 ^ (-10) * x (4) ^ (4) + 3.08 * 10 ^ (8) * x (3) ^ (4) + 7.709 * 10 ^ (-11) * N * * x (5) ^ (4) x (3) + 0.95 + 0.55 * * x (1) - 2401.5 * * Tg2; (2) - 2400

F (3) = 0.124 * G - 6.098 * 10 ^ (8) * x (3) ^ (4) + 3.049 * 10 ^ (8) * x (2) ^ (4) + 3.049 * 10 ^ (8) * x (5) ^ (4) - 568.69 * 0.236 x (3) + * x(6) + 1.183 *(2) + 567.9 *助教;

F (4) = 4.06 * 10 ^ (3) * G - 90.37 * 10 ^ (-10) * x (4) ^ (4) + 9.88 * 10 ^ (-10) * x (7) ^ (4) + 9.88 * 10 ^ (-10) * x (2) ^ (4) x (7) + 0.044 + 0.08 * * x (3) + 0.044 * x (2) - 132.687 * (4) + 132.44 * Tl;

F (5) = 3.686 * 10 ^ (4) * N * * G + 3.049 * 10 ^ (8) * x (3) ^ (4) + 7.7 * 10 ^ (-11) * x (2) ^ (4) - 3.056 * 10 ^ (8) * x (5) ^ (4) + 3.88 * 10 ^ (4) * N * x (6) + 3.52 * 10 ^ (3) * N * * x (x (3) + (2) - (3.88 * 10 ^ (4) * N + 7.04 * 10 ^ (3) * N * + 215) * x(5) - 215 *特遣部队;

F (6) = 0.386 * (3) + 0.18362 * x (7) + 3.88 * 10 ^ (4) * N * (5) + 0.1 * x (2) - (194.269 + 3.88 * 10 ^ (4) * N) * x(5) + 193.6 *结核病;

F (7) = 0.08 * x (4) + 9.88 * 10 ^ (-10) * (x (4) ^ (4) - x (7) ^ (4) + 0.0706 * 838.79 x (6) - * x (7) + 838.22 * Th;

结束