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How can I apply the Genetic Algorithm to this function?

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youn chan choi
youn chan choi 2022-4-28
回答： Nipun 2023-12-29
P1 = 25;
P2 = 37.5;
P3 = 20;
W1 = [5, 10];
W2 = [5, 10];
W3 = [5, 10];
L1 = [40, 60];
L2 = [25, 40];
L3 = [15, 25];
r1 = [6, 15];
r2 = [6, 15];
r3 = [6, 15];
T2 = [0.25*pi, 0.5*pi];
T3 = [0, 0.5*pi];
Fa = 300
% Each moment arms
M1 = (P1^2+W1^2)/P1;
M2 = (P2^2+W2^2)/P2;
M3 = (P3^2+(sqrt((2*W3)^2-(P3-(L3-2*W3))^2)-W3)^2)/P3;
% Each contact Forces
PA = P3 + L2*cos(T3) + L1*cos(T2 + T3);
PB = P2 + L1*cost(T2);
F1 = (Fa*r1-F2*PB-F3*PA)/M1;
F2 = (Fa*r2-F3(P3+L2*cos(T3)))/M2;
F3 = (Fa*r3)/M3;
Favg = (F1+F2+F3)/3;
% Objective functions for the dimension optimization
d1 = F1+F2+F3;
d2 = (Favg-F1)^2+(Favg-F2)^2+(Favg-F3)^2;
Those are things that need to considering. Then I have to optimize the function [W1 W2 W3 L1 L2 L3 r1 r2 r3 T2 T3]
Then how can I apply genetic algorithm or any other optimization tools to find it.
pleese, help me
fdim = (d1 + 1000/(1 + d2))
  2 个评论
Walter Roberson
Walter Roberson 2022-4-28
What is the difference between this question and https://www.mathworks.com/matlabcentral/answers/1707190-how-can-i-find-maximum-value-of-this-function?s_tid=srchtitle

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回答（1 个）

Nipun
Nipun 2023-12-29
Hi Youn,
I understand that you are trying to optimize the variables based on the system of equations presented.
On surfing the MATLAB Answers portal for related queries, I found an answered question similar to your query.
Kindly refer to David Hill's answer linked here: How can I find maximum value of this function??? - MATLAB Answers - MATLAB Central (mathworks.com)
Hope this helps.
Regards,
Nipun

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