How to find beta and Pf values using Monte Carlo

Question

Ashwini Subhash 2022-11-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1854268-how-to-find-beta-and-pf-values-using-monte-carlo

回答： Aditya 2023-8-31

%USE MONTE CARLO METHOD TO CALCULATE PROBABILITY OF FAILURE OF WIND TURBINE
%The given limit state function for the given is 
%g = -3.689 + 0.0184*D^2 + 0.2938*V ;
%Given :
D = 90.0219343 ;
V = 6.672408424 ;
mean_D = 90 ;
mean_V = 6.6724 ;
sigma_D = 10.29023 ;
sigma_V = 0.67708 ;
%Now use normrnd function
n = 10e6;
D = normrnd(mean_D, sigma_D, [n,1]);
V = normrnd(mean_V, sigma_V, [n,1]);
%
%Create for loop
K = nnz(-3.689 + 0.0184*D.^2 + 0.2938*V < 0);
P_fail = K/n 

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Aditya 2023-8-31

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1854268-how-to-find-beta-and-pf-values-using-monte-carlo#answer_1297891

Hi Ashwini,

From the code that you have shared I can see that you have already calculated the Pf (probability of failure) value. To calculate the beta value, you can utilize the "norminv" function in MATLAB. 

For more detailed information on how to use the "norminv" function, please refer to the documentation available at: https://in.mathworks.com/help/stats/norminv.html

Hope this helps!