Username   Password       Forgot your password?  Forgot your username? 

 

Two Methods to Estimate the Change Points of a Bathtub Curve

Volume 9, Number 5, September 2013 - Paper 12 - pp. 569-579

RENYAN JIANG

Faculty of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, CHINA

(Received on February 10, 2013, revised on June 20, 2013)

Abstract:

The failure rate function of non-repairable components can be bathtub shaped. Two change points can be defined for a bathtub failure rate curve, which can be viewed as the partition points between the early use, normal use and wear-out phases. There is practical significance to determine the change points, and several non-parametric methods have been developed for this purpose. This paper presents two parametric methods to determine the change points of the bathtub curve. The proposed methods are based on a bathtub curve model with a finite support. A maximum likelihood method with a constraint is developed to estimate the parameters of this model. The methods are illustrated by three real-world examples.

 

References: 16

Click here to download the paper.

Please note : You will need Adobe Acrobat viewer to view the full articles.Get Free Adobe Reader

 

 
This site uses encryption for transmitting your passwords. ratmilwebsolutions.com