资源简介
风力机载荷的外推法确定。有说明文件和公式,优秀论文及配套源码
代码片段和文件信息
% script file: L_moment.m
% Purpose:
% This program is used to estimate the scale parameterthe location paramete
% and the shape paramete by using the L-moment method.
% Revision History
% ***********************************************************
% * Revision Date of Release Programmer Modification *
% *---------------------------------------------------------*
% * A 9/09/2011 Wei Zhao *
% ***********************************************************
% DONGFANG ELECTRIC NEW ENERGY EQUIPMENT (HANGZHOU) CO. LTD.
% 2th Jiang dong Road Xiaoshan district Hangzhou Zhejiang Province China
% Phone: +86 0571 82811005 Fax: +86 0571 82811005
% Web site: www.dongfang.com or www.decnee.com
% Contact info:
% Wei Zhao Wind turbine loads&strength
% E-mail: zhaowei.china@hotmail.com
% Please keep this original info! Thanks!
% =========================================================================
data=sort(data);
dim=size(data);
n=dim(11);
r=[0123];
br=[0;0;0;0];
for j=1:n
br(1)=br(1)+data(j)/n ;
end
for j=2:n
br(2)=br(2)+(j-1)*data(j)/(n*(n-1));
end
for j=3:n
br(3)=br(3)+(j-1)*(j-2)*data(j)/(n*(n-1)*(n-2));
end
for j=4:n
br(4)=br(4)+(j-1)*(j-2)*(j-3)*data(j)/(n*(n-1)*(n-2)*(n-3));
end
lambda=[0000];
lambda(1)=br(1);
lambda(2)=2*br(2)-br(1);
lambda(3)=6*br(3)-6*br(2)+br(1);
lambda(4)=20*br(4)-30*br(3)+12*br(2)-br(1);
tao=[0000];
tao(3)=lambda(3)/lambda(2);
tao(4)=lambda(4)/lambda(2);
yibu=lambda(1)+5*lambda(2)/(tao(4)-5*tao(3)-1);
alfa=(lambda(1)-yibu)/gamma(log(10/(tao(4)-5*tao(3)+4))/log(2));
k=log(2)/log(5/(tao(4)-5*tao(3)+4));
weibullpara=[yibualfak];
% =========================================================================
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2011-09-08 20:23 extrapolation\
文件 891958 2011-09-08 20:17 extrapolation\Blade root Mx.bmp
文件 891958 2011-09-08 20:17 extrapolation\Blade root My.bmp
文件 891958 2011-09-08 20:18 extrapolation\Blade tip def.bmp
文件 813963 2011-09-08 18:13 extrapolation\input.xlsx
文件 1864 2011-09-08 14:42 extrapolation\L_momemt.m
文件 7899 2011-09-08 20:18 extrapolation\main.m
文件 150114 2011-09-08 20:23 extrapolation\output.xlsx
文件 504 2011-09-08 18:21 extrapolation\readme.txt
文件 179424 2011-09-08 16:04 extrapolation\Wind turbine load extrapolation approach and equations.pdf
文件 1329 2011-09-23 00:20 license.txt
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