A modified Weibull distribution

Lai, C. D., Xie, M. and Murthy, D. N. P. (2003) A modified Weibull distribution. Ieee Transactions On Reliability, 52 1: 33-37. doi:10.1109/TR.2002.805788


Author Lai, C. D.
Xie, M.
Murthy, D. N. P.
Title A modified Weibull distribution
Journal name Ieee Transactions On Reliability   Check publisher's open access policy
ISSN 0018-9529
Publication date 2003
Sub-type Article (original research)
DOI 10.1109/TR.2002.805788
Volume 52
Issue 1
Start page 33
End page 37
Total pages 5
Place of publication NY, USA
Publisher IEEE-Inst Electrical Electronics Engineering Inc
Collection year 2003
Language eng
Subject C1
230117 Operations Research
720205 Industry costs and structure
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.
Keyword Computer Science, Hardware & Architecture
Computer Science, Software Engineering
Engineering, Electrical & Electronic
Bathtub Shape
Hazard-rate Function
Modeling Data
Parameter Estimation
Weibull Distribution
Weibull Probability Plot
Graphical Approach
Family
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
2004 Higher Education Research Data Collection
 
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