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Reliability reallocation for cost uncertainty of fuel cell vehicles via improved differential evolution algorithm
Author(s) -
Yu Xueguang,
Wang Xu,
Liu Xintian,
Wang Yansong
Publication year - 2020
Publication title -
quality and reliability engineering international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 62
eISSN - 1099-1638
pISSN - 0748-8017
DOI - 10.1002/qre.2572
Subject(s) - reliability (semiconductor) , interval (graph theory) , reliability engineering , differential evolution , limit (mathematics) , differential (mechanical device) , mathematical optimization , computer science , engineering , algorithm , mathematics , power (physics) , mathematical analysis , physics , combinatorics , quantum mechanics , aerospace engineering
A fuel cell vehicle (FCV) is composed of many subsystems; it is necessary to reallocate subsystem reliability to improve FCV system reliability. A comprehensive evaluation method considering uncertainty is proposed to obtain the interval value of feasibility factor. The FCV cost uncertainty model is established on the basic of parameters such as feasibility factor, initial reliability, limit reliability, and subsystem cost. To solve the optimization problem for cost uncertainty, the cost interval model is transformed into a deterministic model by interval order relation. An improved differential evolution (DE) algorithm is proposed to reallocate subsystem reliability for minimum cost.