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Connecting mesh to merge two surfaces

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Fabricio Pena
Fabricio Pena 2017-6-23
回答： Marcus 2024-9-13，5:48
Hello,
Is there a way to connect the mesh of these two surfaces, transforming into just one(surface)?
Thanks in advance.
clear all;
% Welding parameters
%----------------------------
U = 33; %Voltage (V)
I = 325; %Current (A)
n = 0.75; %Efficiency
Q = U*I*n;
% Goldak Double-ellipsoid
%------------------------
a = 4.645; %Metade da largura (mm)
b = 6.5; %Penetração (mm)
C1 = 4.645;
C2 = 16;
FF = 0.6;
FR = 1.4;
x = [-10:.2:10];
y= 0;
z1 = [-10:.2:0];
z2 = [0:.2:10];
[xx,zz] = meshgrid(x,z1);
A1 = ((6*sqrt(3)*FF*Q)/(a*b*C1*pi*sqrt(pi)));
B1 = exp(-1.7*(xx.^2/a.^2)).*exp(-5.0*(zz.^2/C1.^2));
[xa,za] = meshgrid (x,z2);
A2 = ((6*sqrt(3)*FR*Q)/(a*b*C2*pi*sqrt(pi)));
B2 = exp(-1.7*(xa.^2/a.^2)).*exp(-5.0*(za.^2/C2.^2));
q1 = A1.*B1;
q2 = A2.*B2;
[X,Z] = meshgrid (x,-15:.05:15);
mesh(xx,zz,q1);
hold on
mesh(xx,za,q2);
shading interp
colormap jet
xlabel(' x (mm)')
ylabel(' Welding direction (mm)')
zlabel(' Power Density (W/mm³)')
  1 个评论
Fernando Freire Ribeiro
Fernando Freire Ribeiro 2019-3-14
Boa tarde Fabrício,
Você conseguiu alguma solução para o problema? Estou enfrentando a mesma dificuldade.
Abraço,
Fernando

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回答（2 个）

Marcus
Marcus 2024-9-13，5:45
Ran in:
clear variables;
% Welding parameters
%----------------------------
U = 32.9; %Voltage (V)
I = 1170; %Current (A)
n = 0.95; %Efficiency
Q = U*I*n;
v = 5/1000; % m/s
t = 37;
% Goldak Double-ellipsoid
%------------------------
a = 2; % metade da largura (mm)
b = 2; % Penetração (mm)
c1 = 1.5;
c2 = 3;
ff = (2*c1)/(c1+c2);
fr = (2*c2)/(c1+c2);
% Code
%------------------------
x = -a:.1:a; % Eixo X
y = 0; % Eixo Y (fixo)
z = -3:.1:3; % Eixo Z
% Meshgrid para os eixos X e Z
[xx, zz] = meshgrid(x, z);
% Parte frontal (para z > 0)
A1 = ((6 * sqrt(3) * ff * Q) / (a * b * c1 * pi * sqrt(pi)));
B1 = exp(-3 * (xx.^2 / a^2)) .* exp(-3 * ((zz - v*t ).^2 / c1.^2));
q1 = A1 .* B1 .* (zz >= 0.0001); % Aplica apenas para z > 0
% Parte traseira (para z < 0)
A2 = ((6 * sqrt(3) * fr * Q) / (a * b * c2 * pi * sqrt(pi)));
B2 = exp(-3 * (xx.^2 / a^2)) .* exp(-3 * ((zz - v*t ).^2 / c2.^2));
q2 = A2 .* B2 .* (zz < 0.0001); % Aplica apenas para z < 0
% Soma das distribuições de calor frontal e traseira
q_total = q1 + q2;
% Visualização da superfície combinada
surf(xx, zz, q_total);
shading interp
colormap jet
xlabel(' x (mm)')
ylabel(' Welding direction (mm)')
zlabel(' Power Density (W/mm³)')
Marcus
Marcus 2024-9-13，5:48
Goldak Double Ellipsoid is solved for two axes, if you want to do it in 3D, just place and solve the same shape and change the image output format.

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