ftree.make: Fault Tree Creation

In ftree: Fault Trees and Event Trees for Risk and Reliability Analysis

Description

ftree.make prepares an initial, single row, dataframe, which will be built upon as the tree is developed.

Usage

ftree.make(type, name="top event", repairable_cond=TRUE, human_pbf=-1,
  description="")

Arguments

type	The logic type for the top gate. Gate types "or","and","inhibit","conditional" (or "cond"), and "alarm" have been implemented.
name	An identifying string for the logic gate
human_pbf	A probability of failure for a human to respond as needed to an alarm. This value is only used by the alarm gate.
repairable_cond	A boolean value used only by the conditional gate type indicating whether repair of the input condition is viable to the model.
description	An optional string providing more detail for the resultant event.

Value

Returns a dataframe containing 19 columns for holding data, results, and connection information.

References

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

Examples

mytree <- ftree.make(type="and", name="a specific undesired event")

ftree documentation built on May 2, 2019, 4:41 p.m.