Dependability Analysis of the Injection Press Using Weibull Distribution

Michálková, Petra; Legát, Václav; Aleš, Zdeněk

doi:10.21062/ujep/150.2018/a/1213-2489/mt/18/4/625

Manufacturing Technology

2018

DOI: 10.21062/ujep/150.2018/a/1213-2489/mt/18/4/625

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Dependability Analysis of the Injection Press Using Weibull Distribution

Petra Michálková¹,

Václav Legát²,

Zdeněk Aleš³

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2021

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“…The data were processed using the Weibull analysis with the support of an Excel spreadsheet. The analysis procedure was in accordance with the standard ČSN EN 61649:2009[18]: Calculation of parameter α of shape and β scale of Weibull distribution[19,20] Furthermore, other dependability indicators were calculated.1. The Weibull distribution probability density function of operating time to failure…”

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Weibull's analysis of the dependability of critical components of selected agricutural machinery

Fabiánek¹,

Legát²,

Aleš³

2021

Manufacturing Technology

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The aim of this paper is an analysis of the dependability of critical components of the John Deer 7530 tractor. For this analysis data was used from a database which contains maintenance data of 166 tractors during approx 9 years. The first part of this article is devoted to the selection of critical components based on number of failures of individual machine parts for a given period and their sales prices. The next part of article presents data for calculation dependability indicators which contains operating times to failure and operating times without failure. Due to the large size of the data files of the individual components, the data are only given for one machine component. Furthermore, the method of calculation of dependability indicators is described by parametric statistical methods according to ČSN EN 61649:2009 and mean time to operating failure. The results of the analysis are summarized in tables and graphs. The method in this article can be used to optimise the maintenance program.

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confidence: 99%

Weibull's analysis of the dependability of critical components of selected agricutural machinery

Fabiánek¹,

Legát²,

Aleš³

2021

Manufacturing Technology

Self Cite

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Dependability Analysis of the Injection Press Using Weibull Distribution

Cited by 1 publication

References 11 publications

Weibull's analysis of the dependability of critical components of selected agricutural machinery

Weibull's analysis of the dependability of critical components of selected agricutural machinery

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