Rank: 286 based on 293 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 methods for fatigue life assessment

 

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Files Posted by Adam View all
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27 Dec 2009 Screenshot MeanStdF Mean and standard deviation functions of a signal Author: Adam Nieslony standard deviation, std, mean, signal processing 25 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 statistics, pdf, random numbers 23 1
12 Nov 2009 Screenshot Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony fatigue, rain flow, rainflow, turning points 245 39
  • 4.4375
4.4 | 32 ratings
Comments and Ratings by Adam
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02 Feb 2010 Stress2Strain The interface allows computing strain courses from stress courses. Author: Aleksander Karolczuk

Its great. With this tool it is easy to understanding the hardening model from Mroz.
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Updated File Comment by Comments Rating
27 Feb 2010 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Veluri, Badrinath

It is very good work
27 Jan 2010 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Pedrazzi, Claudio

First of all, let me compliment for this excellent piece of software!!

The ASTM standard E 1049 -85 (2005) defines two distinct rainflow algorithms:
A) 5.4.4 "Rainflow counting" (that produces half-cycles)
B) 5.4.5 "Simplified rainflow counting for repeating histories" (that never produces half-cycles)

this is probably the answer to questions like the one of Ray Beale. Now I am interested in the "B" method, and I am asking the author: which algorithm is implemented here? my guess is the "A" method, with half cycles.
Second question: is there some hope to extend this function to be able to compute, optionalyy, also the B way?
If necessary I would be glad to provide more info (namely the text of the ASTM standard).
Best regards and thaks a lot for sharing!
Claudio
22 Dec 2009 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Beale, Ray

Sampathkumar- Amplitude is always half the range, by definition.

I am finding many half-cycles in my rfc output of a long time history. Another method I've used produces full cycles. When comparing the two methods for the same time history, the histograms have the exact same shape but your method is shifted to the right due to the unpaired half cycles. Both claim to be ASTM standard. Any idea why?
02 Dec 2009 Random numbers from a user defined distribution creturns the matrix of random numbers from user defined probability density distribution. Author: Adam Nieslony Jos (10584)

Nice, but see

http://www.mathworks.com/matlabcentral/fileexchange/8891

and

http://www.mathworks.com/matlabcentral/fileexchange/14469

for other implementations
11 Nov 2009 Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony Lee, Jinsuk

I have temperature data over time and derive a fatigue model. Using this rainflow counting, I want to get data with three parameters, which are Max_termperature, each cycle time, amplitude (max-min). Is anyone knowing if this package can provide this kind of data? I appreciate.
Top Tags Applied by Adam
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fatigue, mean, pdf, rain flow, rainflow
Files Tagged by Adam View all
  • 1 - 3 of
  • 3
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Dec 2009 Screenshot MeanStdF Mean and standard deviation functions of a signal Author: Adam Nieslony standard deviation, std, mean, signal processing 25 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 statistics, pdf, random numbers 23 1
12 Nov 2009 Screenshot Rainflow Counting Algorithm Very fast rainflow cycle counting for MATLAB Author: Adam Nieslony fatigue, rain flow, rainflow, turning points 245 39
  • 4.4375
4.4 | 32 ratings
 

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