scram.importance: Fault Tree Importance Factor Determination Acquired from...

Description Usage Arguments Details Value References Examples

View source: R/scram.importance.R


Interconnection with SCRAM by transferred XML files permits advanced calculation of importance factors for cut sets.





A fault tree dataframe such as returned from ftree.make or related add... functions. Fault tree basic elements must be either probability or exposed types, INHIBIT gates will be converted to AND. Fault tree shall not contain PRIORITY, ALARM nor VOTE gates, voting is [to be] handled by the atleast gate type.


"And one ring to bind them all ..." This function calls ftree2mef, callSCRAM, and readSCRAMimportance appropriately for the entered ftree object. Temporary files for SCRAM input and output are produced in the process. Measures returned are: Fussel-Vesely Diagnosis Importance Factor (DIF), Birnbaum Marginal Importance Factor (MIF), Critical Importance Factor (CIF), Risk Reduction Worth (RRW), and Risk Achievement Worth (RAW).


Returns a dataframe containing the importance value for each basic-event obtained by 5 different measures.


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

Dutuit,Y. and Rauzy, A. (2001) "Efficient algorithms to assess component and gate importance in fault tree analysis" IEEE Trans. Reliab. Eng. Sysl Saf, vol.72, no, 2001

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

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.

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


## This function is completely device dependent.

jto888/FaultTree.SCRAM documentation built on Aug. 14, 2017, 10:32 p.m.