Automated Failure Boundary Mapping: findPeak(t,y) - File Exchange

Code covered by the BSD License

Highlights from
Automated Failure Boundary Mapping

Failure Boundary Identificati...
Flutter Model Demo
boundaryArea(Y,X,lb,ub,limitF... Copyright 2009 The MathWorks, Inc.
boundarySearch(X0,lb,ub,limit... BOUNDARYSEARCH searches a 2-D space to identify the failure region(s)
findPeak(t,y) Helper function to find peaks
flutterLimitFunction(X,factor... Calcualte Flutter Limit Function
getParamNames(modelNames, blo... Copyright 2009 The MathWorks, Inc.
make2plots(X1, Y1, Y2) CREATEFIGURE1(X1,Y1,Y2)
make3plots(X1, Y1, Y2, Y3) CREATEFIGURE1(X1,Y1,Y2,Y3)
peaksLimitFunction(X) Copyright 2009 The MathWorks, Inc.
runModel(ds) Copyright 2009 The MathWorks, Inc.
saGradientMethod(ds,varargin) [gradf, ds] = saGradientMethod(ds,paramNames,responseNames)
updateModelParams(ds) Copyright 2009 The MathWorks, Inc.
setup.m
Flutter
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from Automated Failure Boundary Mapping by Stuart Kozola
Demo files from July 21, 2009 webinar

findPeak(t,y)

function [freq, amp] = findPeak(t,y)
% Helper function to find peaks

%   Copyright 2009 The MathWorks, Inc.

N = 2^nextpow2(2*length(y));
Fs  = 1./mean(diff(t));
[Pyy,fy]=periodogram(y,[],N,Fs);
[amp,mi] = max(Pyy);
freq = fy(mi);

Highlights from Automated Failure Boundary Mapping

Highlights from
Automated Failure Boundary Mapping