accDegrad: Compute the accumulated degradation at each time interval....
In jcpetkovich/rspatiotemp:

Description Usage Arguments Details Value

Compute the accumulated degradation at each time interval. Accumulated Degradation (accDegrad)

1 2	accDegrad(dataH, dataV, alpha, beta, lambda, weight, rType, fType, onlyFinal = FALSE)

`dataH`	A matrix containing the horizontal vibration data.
`dataV`	A matrix containing the vertival vibration data.
`alpha`	A choosen constant value used when computing the R value. The R value takes into account the influence of the time.
`beta`	A choosen constant value used when computing the F value. The F value takes into account the influence of the acceleration.
`weight`	The weight must be less or equal to 1. It is the percent weight of the horizontal data.
`rType`	The method used to compute the R value. See details for more details.
`fType`	The method used to compute the F value. See details for more details.
`onlyFinal`	Default to false. If true returns only the final accumulated degradtion value.

rType:
"exp" = Exponential [R = e^(alpha*(t-i))]
"Nexp" = Normalized Exponential [R = t*e^(alpha*(t-i)/[sum k(1:t)]e^(alpha(t-k)))]
"poly1" = Polynomial 1 [R = (i/t)^alpha]
"poly2" = Polynomial 2 [R = (t-i+1)^alpha]
"Npoly1" = Normalized Polynomial 1 [R = t*(i/t)^alpha/[sum k(1:t)](i/t)^alpha]
"Npoly2" = Normalized Polynomial 2 [R = t*(t-i+1)^alpha/[sum k(1:t)](t-i+1)^alpha]

fType:
"poly" = Polynomial [F = V(i,j)^beta] "Npoly" = Normalized Polynomial [F = ([sum j(1:data length)]V(i,j)^beta/datalength)^(1/beta)]

A vector containing all the accumulated degradation values at each time interval.

jcpetkovich/rspatiotemp documentation built on May 18, 2019, 10:26 p.m.