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A robust performance evaluation method based on interval evidential reasoning approach under uncertainty.

Leiyu Chen1, Zhijie Zhou1, Xiaoxia Han1

  • 1High-Tech Institute of Xi'an, Xi'an, Shaanxi 710025, China.

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|April 6, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a robust performance evaluation (RPE) method to ensure accurate equipment health management despite data interference. The RPE method enhances reliability by optimizing evaluation models and establishing thresholds for input indexes.

Keywords:
Electric servo mechanismHealth managementInterval evidential reasoning (IER)Performance evaluation (PE)Robustness analysis

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Area of Science:

  • Engineering
  • Reliability Engineering
  • Data Science

Background:

  • Performance evaluation (PE) is critical for equipment health management.
  • Interfered monitoring data can lead to erroneous PE results.
  • Existing methods may lack robustness against data interference.

Purpose of the Study:

  • To propose a robust performance evaluation (RPE) method to address data interference issues in equipment monitoring.
  • To enhance the accuracy and reliability of performance evaluation results.
  • To develop a robustness measurement for evaluating the impact of interference.

Main Methods:

  • Distinguishing between single and double evidence with interference.
  • Proposing a robustness measurement based on interval similarity.
  • Optimizing referential values in the IER evaluation model.
  • Determining robustness thresholds for input indexes based on constraints.

Main Results:

  • The RPE method effectively handles single and double evidence with interference.
  • Optimized referential values improve evaluation accuracy.
  • Established robustness thresholds ensure minimal deviation between interfered and non-interfered results.
  • The proposed method demonstrated validity in electric servo mechanism PE.

Conclusions:

  • The developed RPE method provides a reliable approach for equipment performance evaluation.
  • The method ensures accurate results even when monitoring data is subject to interference.
  • RPE is a valuable tool for maintaining equipment health in industrial applications.