Accelerated Load Data Analysis with LMS TecWare - Download ...
Accelerated Load Data Analysis with LMS TecWare - Download ...
Accelerated Load Data Analysis with LMS TecWare - Download ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Durability load data processing<br />
Why rainflow counting <br />
• Basic damage event : closed hysteresis loop<br />
Interpret<br />
• Rainflow counting = counting of closed hysteresis loops in time signal<br />
Rainflow<br />
counting<br />
1<br />
0<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
<strong>Load</strong> history<br />
from<br />
load<br />
level<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
1<br />
0<br />
to load level<br />
1 2 3 4 5 6 7 8 9<br />
10<br />
Damage<br />
calculation<br />
Closed hysteresis<br />
loop<br />
Classification<br />
into bins<br />
Rainflow Matrix:<br />
at any from-to cell: entry<br />
for the numbers of cycles<br />
to<br />
(Pseudo-)<br />
Damage<br />
from<br />
constant amplitude<br />
constant mean<br />
Lines of constant mean<br />
and constant amplitude<br />
in a rainflow matrix<br />
standing<br />
hystereses<br />
hanging<br />
hystereses<br />
26 <strong>LMS</strong> User Conference 2006
Change language