Work

Reliability, Maintainability, and Availability Analysis of a Computerized Numerical Control Machine Tool Using Markov Chains

Year: 2021

Type: article

Abstract: Reliability, maintainability, and availability analysis of Computerized Numerical Control Machine Tools (CNCMT) is vital as they are widely used in manufacturing industries for mass production.This paper proposes a generalized framework for Time-Between-Failure (TBF) and Time-To-Repair (TTR) data analysis, integrated with Markov chains for estimating the system's Steady State Availability (SSA).A case study of a typical CNCMT illustrates the applicability and the effectiveness of the proposed framework.The effect of variation of sub-systems' failure and repair rates on the availability of the CNCMT is studied.The critical sub-systems from reliability, maintainability, and availability point of view are identified.The analysis reveals that the CNCMT's failure and repair rates are nearly constant and the CNCMT fails four times per year.The Lubrication Sub-system (LS) is the utmost severe sub-system as far as maintainability aspect is concerned and Turret Sub-system (TS) is the utmost severe sub-system from a reliability perspective.

Source: Acta Polytechnica Hungarica

DOI: 10.12700/aph.18.6.2021.6.3

Authors: Rajkumar Bhimgonda Patil, Mohamed Arezki Mellal, Anand K. Bewoor, Sameer Al-Dahidi

Institutions: University of Maryland, College Park, University of Boumerdes, German Jordanian University

Language: English

Topic: Reliability and Maintenance Optimization

Subfield: Safety, Risk, Reliability and Quality

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W3171996641

FWCI: 1.065

Cites: 65

Cited by: 17

Related to: 10