Clear Filters
Clear Filters

How to get different values of Wbar, Fbar and fbar for different values of r and psi like for psi = [0.0, 0.0001] and similarly for 'r'.

1 view (last 30 days)
k = 1:21;
Hbar=0.04; % A:Length of bearing, H:Bearing wall thickness, Hbar = H/A
r= 1.7773; % Film thickness ratio
psi=0.0; % Permeability parameter
calpha = ((k.^2).*(pi^2).*(1+r+r.^2+r.^3))+3*(1-r-r.^2+r.^3);
y = 1./((k.^2).*((48.*k.*pi.*psi.*tanh(k.*pi*Hbar))+(Hbar*calpha)));
x = 192*0.04*(r-1)/pi^2;
Wbar = x*sum(y) % Dimensionless load capacity
z = log(r)/(r-1);
t = 96*0.04*(r-1)^2/pi^2;
Fbar = z+t*sum(y) % Dimensionless friction drag exerted by a moving slider
fbar = Fbar/Wbar % Coefficient of friction

Answers (1)

Balavignesh
Balavignesh on 22 Sep 2023
Hi Avinash,
I understand that you want to get different values of the result variables ("Wbar, "Fbar", "fbar) for different values of psiand r. You can store the required values of “psi” and “r” you want to experiment in two different arrays. You can then initialize three different result arrays “Wbar”,Fbar”,fbar” and use a “for” loop to update the result arrays for different values of psi and r. The following code snippet may help you achieve this:
r= [1.7773 , 1.234 , 1.678]; % Film thickness ratio
psi= [0.0 , 0.001 , 0.002] ;% Permeability parameter
Wbar = []; %initalizing a result array
for i = 1:3
calpha = ((k.^2).*(pi^2).*(1+r(i)+r(i).^2+r(i).^3))+3*(1-r(i)-r(i).^2+r(i).^3);
y = 1./((k.^2).*((48.*k.*pi.*psi(i).*tanh(k.*pi*Hbar))+(Hbar*calpha)));
x = 192*0.04*(r(i)-1)/pi^2;
Wbar(i) = x*sum(y) % updating each index of result array using for loop
end
You can refer to the Mathworks Documentation link below to get more information about "for" loops:

Categories

Find more on Data Import and Analysis in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!