Rank: 292 based on 231 downloads (last 30 days) and 3 files submitted
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Adam Nieslony

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Company/University
Opole University of Technology
Lat/Long
50.68280029296875, 17.94479942321777

Personal Profile:
Professional Interests:
multiaxial fatigue of materials, spectral method for fatigue life assessment

 

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Files Posted by Adam View all
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04 Apr 2010 Screenshot Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony fatigue, fatige, rain flow, rainflow, turning points, is there any illustra... 207 76
  • 4.58696
4.6 | 49 ratings
27 Dec 2009 Screenshot MeanStdF Mean and standard deviation functions of a signal Author: Adam Nieslony mean, std, standard deviation, signal processing 4 0
02 Dec 2009 Screenshot Random numbers from a user defined distribution creturns the matrix of random numbers from user defined probability density distribution. Author: Adam Nieslony random numbers, pdf, statistics 20 2
  • 5.0
5.0 | 2 ratings
Comments and Ratings by Adam View all
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11 Aug 2012 SUM(A, col) Summation function for adding elements of entire column in array Author: Carson

I don't know whether to laugh or cry.
25 Aug 2011 fix_lines Improves the style of lines in MATLAB generated eps files Author: Oliver Woodford

You are the best! The tool is simple and do exactly what I have expected. Thank you.
21 Jul 2011 3D colored line plot Plot 3D lines with CData, (actually surface) Author: Georg Stillfried

26 Nov 2010 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony

Hi Dilip Rao,
You can add the matrices without problems if they have the same size: m=m1+m2+m3. I don't know what you need exactly to do, but be careful while adding matrices from different sensors - maybe you have multiaxial fatigue problem? I this case use some theoretical criteria for obtaining equivalent uniaxial fatigue loading/matrix.
18 Nov 2010 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony

Hi Andrew Greaser,
The RFHIST counts cycle amplitudes and not ranges. You can also make an histogram for cycles mean, frequency and period. See help lines included in RFHIST function.
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13 Mar 2013 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Otten, Jeppe

If you are running MatLAB R2012b on a Macbook you can follow the link below in order to use the rainflow.c script:

http://www.mathworks.se/support/solutions/en/data/1-FR6LXJ/

It will guide you how to install Xcode, patch it and then you are ready to compile your mex file for Matlab by writing this in your command window:

mex rainflow.c

13 Mar 2013 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Otten, Jeppe

I'm currently running MatLAB R2012b on my Macbook Pro, but I'm having trouble running the script. Is there a rainflow.mexOSX? When I'm running rfdemo1.m it gives me this error:

Undefined function 'rainflow' for input arguments of type 'double'.

Error in rfdemo1 (line 35)
a=rainflow(ext,1);
11 Mar 2013 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Bülent

27 Feb 2013 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Mads

Can anyone explain why the ampl is divided by 2 in rf3 in rainflow.c
"ampl=fabs( (a[j-1]-a[j-2])/2 );"
25 Jan 2013 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Perrone, Francesco

The function is great.
Btw I've got a question: trying to cross-check results coming from your function and those from another software on the same time series, leads to different rfc. Within your function, half cycles are untreated (I mean being rounded up/down); the mismatch with the other software is located exactly there. Do you know any method to further process half cycles?
Top Tags Applied by Adam
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fatigue, mean, pdf, rain flow, rainflow
Files Tagged by Adam View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
04 Apr 2010 Screenshot Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony fatigue, fatige, rain flow, rainflow, turning points, is there any illustra... 207 76
  • 4.58696
4.6 | 49 ratings
27 Dec 2009 Screenshot MeanStdF Mean and standard deviation functions of a signal Author: Adam Nieslony mean, std, standard deviation, signal processing 4 0
02 Dec 2009 Screenshot Random numbers from a user defined distribution creturns the matrix of random numbers from user defined probability density distribution. Author: Adam Nieslony random numbers, pdf, statistics 20 2
  • 5.0
5.0 | 2 ratings

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