addActive: Add an Active Component Event

Description Usage Arguments Value References Examples

Description

Modifies an existing fault tree with the addition of an active component event.

Usage

1
addActive(DF, at, mttf=NULL, mttr=NULL, name="",description="")

Arguments

DF

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

at

The ID of the parent node for this addition.

mttf

The mean time to failure. It is the user's responsibility to maintain constant units of time.

mttr

The mean time to repair (restore). It is the user's responsibility to maintain constant units of time.

name

A short identifying string

description

An optional string providing more detail for the resultant event.

Value

Returns the input fault tree dataframe appended with an entry row for the defined component event.

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

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mytree <-ftree.make(type="or")
mytree <- addActive(mytree,  at=1, mttf=3, mttr=12/8760,name="pump failure")

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