FMEA & FTA
failureclass
Determines the class of a failure according to its severity and occurence rating
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severity: is the severity rating
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occurence: is the occurence rating
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designfailure: is the critical severity
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critical_s: is the significant severity
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significant_s: is the significant occurence
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significant_o:
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:
faulttree
fmbestaction
Looks for the best action attached to failure causes
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initial: is the vector containing the current (initial) values
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attribute: is the name of the task attribute containing the improved value
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level: is the level that marks failure causes in the fault tree
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impstate: is the implementation statues
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impdate: is the implementation date
fmeaform
fmearisk
fmmappedrating
Maps a rating given for one side of a matrix to the other side of the matrix. Each row in the resulting vector computes to the maximum of all values in the rating vector which are connected to the row by the matrix.
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matrix: The FMEA matrix
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rating: A vector of ratings for the input side of the matrix
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maximize:
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mapmode:
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:
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:
fmmappedratingex
Maps a rating given for one side of a matrix to the other side of a second matrix. The two matrices have to have one common dimension. Each row in the resulting vector computes to the maximum of all values in the rating vector which are connected to the row by the matrix.
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matrix1: the first matrix
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matrix2: the second matrix
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rating: a vector of ratings for the input side of the matrix
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opt: if true, the function takes the minimum of all connected values, otherwise the maximum
fmnetfaulttype
fmnetrating
Looks up the worst rating of all effects/causes connected to a failure by a automatrix (failure net)
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source: is the vector containing the ratings
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net: is the failure net matrix
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level: is the fault type index
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steps: is the level of indirection for the lookup
fmrating
Maps a rating given for one side of a matrix to the other side of a second matrix. The two matrices have to have one common dimension. Each row in the resulting vector computes to the maximum of all values in the rating vector which are connected to the row by the matrix.
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matrix: the first matrix
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condition: the second matrix
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rating: a vector of ratings for the input side of the matrix
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default: if true, the function takes the minimum of all connected values, otherwise the maximum
fmrisk
fta
Evaluates probabilities for faults in a fault tree analysis
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tree: a tree of faults
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operators: a vector or a property containing the boolean operators. Items with a operator equal to 1, probabilities of the child items will be multiplied. For all other values of the operator, the child items will be summed up.
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probabilities: a vector or property containing the probabilities of the leaf items
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total: a scalar variable to receive the total probability of the whole tree
haccp
mcsimportance
mcsprobability
mcssensitivity
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