A modified Weibull distribution
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 33-37 |
Journal / Publication | IEEE Transactions on Reliability |
Volume | 52 |
Issue number | 1 |
Publication status | Published - Mar 2003 |
Externally published | Yes |
Link(s)
Abstract
A new lifetime distribution capable of modeling a bathtub-shaped hazard-rate function is proposed. The proposed model is derived as a limiting case of the Beta Integrated Model and has both the Weibull distribution and Type I extreme value distribution as special cases. The model can be considered as another useful 3-parameter generalization of the Weibull distribution. An advantage of the model is that the model parameters can be estimated easily based on a Weibull probability paper (WPP) plot that serves as a tool for model identification. Model characterization based on the WPP plot is studied. A numerical example is provided and comparison with another Weibull extension, the exponentiated Weibull, is also discussed. The proposed model compares well with other competing models to fit data that exhibits a bathtub-shaped hazard-rate function.
Research Area(s)
- Bathtub shape, Hazard-rate function, Modeling data, Parameter estimation, Weibull distribution, Weibull probability plot
Citation Format(s)
A modified Weibull distribution. / Lai, C. D.; Xie, Min; Murthy, D. N P.
In: IEEE Transactions on Reliability, Vol. 52, No. 1, 03.2003, p. 33-37.
In: IEEE Transactions on Reliability, Vol. 52, No. 1, 03.2003, p. 33-37.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review