Paper Title:
Reliability Evaluation of Electromagnetic Flowmeter Based on Entropy Weight and Fuzzy Theory
  Abstract

With regard to the problem that only single index has been used in assessment of reliability, a suitable comprehensive assessment method about reliability index of electromagnetic flowmeter was established, and Mean Time To First Failure(MTTFF), Mean Time Between Failure(MTBF) and equivalent failure rate(D) were selected as the standards of reliability evaluation for the electromagnetic flowmeter in this paper. Because many evaluation elements involved and failure information and evaluation indexes are fuzzy, fuzzy comprehensive evaluation based on entropy weight was introduced to quantify the qualitative evaluation indexes, and indexes weight were determined scientifically by using comprehensive evaluation obtained from combining a subjective expert’s evaluation weight with objective entropy weight. Two kinds of the domestically produced electromagnetic flowmeter were studied, the censored data obtained from the process of consumers’s use were analyzed, and fuzzy comprehensive evaluation method based on entropy weight was used to evaluate the indexes of reliability in two kinds of electromagnetic flowmeter comprehensively. The results show that the conclusion is consistent with the fact, the method can effectively solve the problem existed in current modeling, and evaluation of electromagnetic flowmeter reliability has great practical value in the application.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 20: Metrology and Measurement
Edited by
Wu Fan
Pages
5321-5326
DOI
10.4028/www.scientific.net/AMR.383-390.5321
Citation
C. Y. Yu, K. L. Zhang, D. Z. Ma, Z. Zhou, "Reliability Evaluation of Electromagnetic Flowmeter Based on Entropy Weight and Fuzzy Theory", Advanced Materials Research, Vols. 383-390, pp. 5321-5326, 2012
Online since
November 2011
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Price
$32.00
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