TPDEF turning points definitions and numenclature Definition of turningpoints: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Local minimum or maximum are indicated with the letters 'm' or 'M'. Turning points in this connection are all local max (M) and min (m) and the last (L) value and the first (F) value if the first local extremum is a max. (This choice is made in order to get the exact up-crossing intensity from rfc by mm2lc(tp2mm(rfc)) ) Definition of min2min and Max2Max wave: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A min2min wave (mw) is defined starting from a minimum and ending in the following minimum. Similarly a Max2Max wave (Mw) is thus a wave from a maximum to the next maximum (all waves optionally rainflow filtered). Definition of Max2min and min2Max cycle: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A min2Max cycle (mM) is defined as the pair of a minimum and the following Maximum. Similarly a Max2min cycle (Mm) is defined as the pair of a Maximum and the following minimum. (all cycles possibly rainflowfiltered) <----- Direction of wave propagation M M / \ .... M /:\_ M_ M F \ | / \m/ : \ /: \ / \ \ h | / : \ / : \ / \ \ | / : \ / : \_ _/ \_ L \_ | / : \_m_/ : \m_/ \m/ \m/ : : : : <------Mw-----> <-----mw-----> See also wavedef, crossdef, dat2tp
turning points definitions and numenclature |
turning points definitions and numenclature |
001 % TPDEF turning points definitions and numenclature 002 % 003 % Definition of turningpoints: 004 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 005 % Local minimum or maximum are indicated with the 006 % letters 'm' or 'M'. Turning points in this connection are all 007 % local max (M) and min (m) and the last (L) value and the 008 % first (F) value if the first local extremum is a max. 009 % 010 % (This choice is made in order to get the exact up-crossing intensity 011 % from rfc by mm2lc(tp2mm(rfc)) ) 012 % 013 % Definition of min2min and Max2Max wave: 014 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 015 % A min2min wave (mw) is defined starting from a minimum and 016 % ending in the following minimum. 017 % Similarly a Max2Max wave (Mw) is thus a wave from a maximum 018 % to the next maximum (all waves optionally rainflow filtered). 019 % 020 % Definition of Max2min and min2Max cycle: 021 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 022 % A min2Max cycle (mM) is defined as the pair of a minimum 023 % and the following Maximum. Similarly a Max2min cycle (Mm) 024 % is defined as the pair of a Maximum and the following minimum. 025 % (all cycles possibly rainflowfiltered) 026 % 027 % <----- Direction of wave propagation 028 % 029 % M M 030 % / \ .... M /:\_ M_ M 031 % F \ | / \m/ : \ /: \ / \ 032 % \ h | / : \ / : \ / \ 033 % \ | / : \ / : \_ _/ \_ L 034 % \_ | / : \_m_/ : \m_/ \m/ 035 % \m/ : : : : 036 % <------Mw-----> <-----mw-----> 037 % 038 % See also wavedef, crossdef, dat2tp 039 040 % history: 041 % by Per A. Brodtkorb 19.09.1999 042 % revised pab 15.05.2000 043 044 045 more on 046 help tpdef 047 more off 048
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