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Analysis of an industrial system under uncertain environment by using different types of fuzzy numbers

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Abstract

Uncertainties play a dominant role in the performance analysis of the system. For managing it, fuzzy set theory and its corresponding triangular fuzzy numbers have been utilized by most of the researchers for quantifying the data. However, in this manuscript, this hypothesis has been calmed by defining the different types of numbers, namely gamma, normal, Cauchy and triangular for uncertainties. Based on it, behavior, performance and sensitivity analysis of the system have been investigated at different levels of confidence and the preferences as provided by the decision makers towards the data. Based on it, various expressions of the system such as failure rate, repair time, reliability, availability etc., are obtained corresponding to these different types of the numbers. From the computed results, it is concluded that these indices are reduced range of prediction as compared to the existing approaches. A numerical example has been taken for demonstrating the approach.

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Acknowledgements

This work has been supported by the Thapar Institute of Engineering & Technology (Deemed University) under SEED Money Grant wide Letter No. TU/DORSP/57/1910.

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  1. School of Mathematics, Thapar Institute of Engineering & Technology (Deemed University), Patiala, Punjab, 147004, India

    Harish Garg

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  1. Harish Garg
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Correspondence to Harish Garg.

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Garg, H. Analysis of an industrial system under uncertain environment by using different types of fuzzy numbers. Int J Syst Assur Eng Manag 9, 525–538 (2018). https://doi.org/10.1007/s13198-018-0699-8

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