DIAdem Help

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Command: ChnRainCalc

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Command: ChnRainCalc

Calculates the rainflow classification.

Call ChnRainCalc(Y, ClassMeth2, RainResiduumCalc, Hysteresis, RainFrequencyTyp)

Input Parameters

Y Specifies the data channel containing the y-values.
ClassMeth2 Specifies how DIAdem specifies the class limits.
RainResiduumCalc Specifies whether DIAdem includes the residues in the count.
Hysteresis Specifies the hysteresis as a percentage of the average class width.
RainFrequencyTyp Specifies whether DIAdem displays the counts as a single frequency or as a cumulative frequency.

Global Parameters

ClassNoSpecifies how many classes to create.
ClassBeginSpecifies the lower limit of the first class interval.
ClassEndSpecifies the upper limit of the last class interval.
ClassWidthSpecifies the width of the class interval.
ClassRangeWidthSpecifies the difference between the class begin and the class end.
RainChnContainSpecifies whether DIAdem stores the class numbers or the values of the class means.
RainMatTrans(i)Specifies whether DIAdem stores the rainflow or the transition matrix.
RainOneParaCalc(i)Specifies whether DIAdem stores the range counting from the transition matrix for rising ranges.
RainSpecOnePara(i)Specifies whether DIAdem stores the range counting from the transition matrix for falling ranges.
RainInclFirstLastValSpecifies whether DIAdem uses the first and the last value of the signal that is to be classified as the reversal points in a rainflow classification.

Rainflow classification is a two-parameter classification procedure, allowing you to examine components for operational durability. This procedure classifies a transition matrix and a rainflow matrix to link two double-parameter counting procedures.

DIAdem uses the start and target classes of a load-time function to enter the positive and negative slopes of the function in the transition matrix. DIAdem includes the start and target classes of closed hystereses in the rainflow matrix. DIAdem can calculate any residue that occurs either into the rainflow matrix or into the single-parameter procedure, which can be extracted from the matrix.

DIAdem can extract the collectives from range counting and level crossing counting from the transition matrix and DIAdem can extract the collectives from range pair counting and level crossing counting from the rainflow matrix.

Refer to the Help page Rainflow Classification for mathematical details.

Dialog Box Call

Call SUDDlgShow("Main", ResourceDrv & "AnaChnRainCalc")

Rainflow classification

 

Related Topics

Command: CClassMaxSave | Command: CClassSample | Command: CClassTimeLev1 | Command: CClassTimeLev2 | Command: ChnClassLevCross | Command: ChnClassMaxMem | Command: ChnClassPeak1 | Command: ChnClassPeak2 | Command: ChnClassPeak3 | Command: ChnClassRange | Command: ChnClassRgPair | Command: ChnClassSample | Command: ChnClassTimeLev1 | Command: ChnClassTimeLev2 | Command: ChnClassXRedXY | Command: ChnHistogram

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