cutsets: Fault Tree Minimal Cut Set Determination
In jto888/FaultTree1: Fault Trees for Risk and Reliability Analysis

Description Usage Arguments Value References Examples

Performs the original MOCUS (Method for Obtaining Cut Sets) developed by J. Fussell and W. Vesely.

1	cutsets(DF)

`DF`	A fault tree dataframe such as returned from ftree.make or related add... functions.

Returns a list of matrices for each of cut set lengths found. Each element is defined by its unique ID assigned in the fault tree.

Fussell, J., Vesely, W.E. (1972) A New Method for Obtaining Cut Sets for Fault Trees Transactions ANS, No. 15

Ericson, Clifton A. II (2011) Fault Tree Analysis Primer CreateSpace Inc.

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

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

Vesely, W.E., Goldberg, F.F., Roberts, N.H., Haasl, D.F. (1981) Fault Tree Handbook U.S. Nuclear Regulatory Commission

Vesely, W.E., Stamatelato, M., Dugan, J., Fragola, J., Minarick, J., Railsback, J. (2002) Fault Tree Handbook with Aerospace Applications NASA

Doelp, L.C., Lee, G.K., Linney, R.E., Ormsby R.W. (1984) Quantitative fault tree analysis: Gate-by-gate method Plant/Operations Progress Volume 3, Issue 4 American Institute of Chemical Engineers

mytree <-ftree.make(type="or")
mytree <- addLogic(mytree, at=1, type= "and", name="A and B failed")
mytree <- addProbability(mytree, at=2, prob=.01, name="switch A failure")
mytree <- addProbability(mytree, at=2, prob=.01, name="switch B failure")
mytree <- addLogic(mytree, at=1, type= "and", name="A and C failed")
mytree <- addDuplicate(mytree, at=5, dup_id=3)
mytree <- addProbability(mytree, at=5, prob=.01, name="switch C failure")
mytree <- addLogic(mytree, at=1, type= "and", name="B and C failed")
mytree <- addDuplicate(mytree, at=8, dup_id=4)
mytree <- addDuplicate(mytree, at=8, dup_id=7)
mycutsets<-cutsets(mytree)