Semiparametric Reliability Model in the Failure Analysis of a Coal-Fired Boiler Used in a Thermal Power Plant-A Case Study

被引：3

作者：

Das Adhikary, Debasis ^{[1
]}

Bose, Goutam Kumar ^{[1
]}

Bose, Dipankar ^{[2
]}

Mitra, Souren ^{[3
]}

机构：

[1] Haldia Inst Technol, Dept Mech Engn, Purba Medinipur 721657, W Bengal, India

[2] Natl Inst Tech Teachers Training & Res, Dept Mech Engn, Kolkata, India

[3] Jadavpur Univ, Dept Prod Engn, Kolkata, India

来源：

QUALITY ENGINEERING | 2015年 / 27卷 / 03期

关键词：

semi-parametric reliability model; coal-fired boiler; Proportional Hazard Model; Weibull; thermal power plant; covariates; operating environment; MEDIAN-RANK REGRESSION; MAXIMUM-LIKELIHOOD; INFORMATION; PREDICTION; SYSTEMS;

D O I：

10.1080/08982112.2015.1037395

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Reliability of a system varies under different operating conditions like temperature, humidity, dust, maintenance facilities, maintenance personnel skill, operator skill, etc., called "covariates." Under poor operating environments the reliability decreases. Therefore, for precise estimation of system reliability, the influence of various covariates is included. This article aims to investigate the effect of five covariates on the reliability characteristics of a coal-fired boiler using the Weibull proportional hazard model, a semiparametric reliability model. The results from the case study indicate that there is a substantial decrease in reliability. A preventive maintenance program based on this calculated reliability will be safer to use.

引用

页码：353 / 360

页数：8

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