Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (7): 2275-2282.doi: 10.12305/j.issn.1001-506X.2025.07.21

• Systems Engineering • Previous Articles    

Construction of economic evaluating indicator system for service life of ships

Ziqing ZHEN1,2, Dong HUANG1,*, Song HAN2, Haoming FENG2   

  1. 1. Economics and Management Department, Naval University of Engineering, Wuhan 430030, China
    2. Unit 91315 of the PLA, Dalian 116041, China
  • Received:2024-03-05 Online:2025-07-16 Published:2025-07-22
  • Contact: Dong HUANG

Abstract:

Aiming at the current economic evaluation of the service life in the in-service assessment task, there are limitations such as calculating the cost only by financial indicators, single evaluation indicator result, and difficult to effectively support the decision-making of equipment upgrading and improvement, a method based on the statistical method and information entropy to construct the economic evaluation indicator system of the ship service life is proposed. The method is based on the principles of comprehensiveness, scientificity and observability. Firstly, an initial screening of the initial set of evaluation indicator system is carried out. Then, using the correlation analysis and information entropy weight screening method, the redundant indicators are eliminated and the independence and significance of the remaining indicators are ensured. Finally, the reasonableness of the evaluation indicator system is verified by the factor analysis method. The results of empirical analysis show that the evaluation indicator system determined by applying this method can efficiently reflect about 97.76% of the effective information of the original observable indicators, and improve the efficiency and accuracy of the assessment of the economic performance of the ship service life.

Key words: in-service assessment, in-service economy, evaluation indicator system, correlation analysis, information entropy

CLC Number: 

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