ftree2mef: Translate fault tree object to Model Exchange Format

In FaultTree.SCRAM: Interaction Between 'FaultTree' on R and "SCRAM"

Description

Prepares an xml file suitable for reading into open-psa programs such as SCRAM

Usage

ftree2mef(DF, DFname="", dir="", write_file=FALSE)

Arguments

DF	A fault tree dataframe object.
DFname	A string of the underlying ftree dataframe, intended for use when calling (using do.call) inside function environments where this name information has been lost
dir	A character string for an absolute directory in which R can read and write.
write_file	A logical controlling whether to perform the write operation.

Details

Only coherent fault trees are handled. Fault trees incorporating ALARM, or VOTE gates are excluded, as are fault trees incorporating Demand type basic elements. INHIBIT and PRIORITY gates are converted to AND.

Value

Returns a character vector with escaped quote characters, suitable for writing to disk. Optionally, this vector will be written to a file taking the name of the object passed in as DF (over-ridden by name that may be provided in DFname) and appending '_mef.xml'.

References

Rauzy, Antoine, et. al. (2013) Open PSA Model Exchange Format v2.0 open-psa.org

Limnios, Nikolaos (2007) Fault Trees ISTE Ltd.

Nicholls, David [Editor] (2005) System Reliability Toolkit Reliability information Analysis Center

O'Connor, Patrick D.T. (1991) Practical Reliability Engineering John Wiley & Sons

Examples

N<-ftree.make(type="or", name=" no Functionality ", name2=" at N5")
N<-addProbability(N, at=1, prob= 0.7, name="Failure Probability", name2="of N5", tag="N5")
N<-addLogic(N, at=1, type="and", name="no Functionality", name2="from Externalities of N5")
N<-addLogic(N, at=3, type="or", name="no Functionality", name2="of N3")
N<-addLogic(N, at=3, type="or", name="no Functionality", name2="of N4")
N<-addProbability (N, at=4, prob= 0.8, name="Failure Probability", name2="of N3", tag="N3")
N<-addProbability (N, at=4, prob= 0.9, name="Failure Probability", name2="of N1", tag="N1")
N<-addProbability (N, at=5, prob= 0.6, name="Failure Probability", name2="of N4", tag="N4")
N<-addLogic(N, at=5, type="and", name="no Functionality", name2="from Externalities of N4")
N<-addDuplicate( N, at=9, dup_id=7)
N<-addProbability (N, at=9, prob= 0.5, name="Failure Probability", name2="of N2", tag="N2")
# note write-file argument has default FALSE
ftree2mef(N)

FaultTree.SCRAM documentation built on March 5, 2020, 3 a.m.