The Multi-Water Sources Allocation Research in Beijing after South-to-North Water Diversion

Accessibility is an important criterion that reflects the quality of aviation equipment maintenance, especially prominent to maintenance time. To obtain the better accessibility for maintenance efficiency and reducing maintenance costs, it is necessary to choose an optimal scheme in many accessibility designs. This requires the comprehensive appraisement for the parts accessibility of the entire functional system. This paper introduces the correlation analysis method to appraise the accessibility, and propose the mathematical model of the appraisement, which has practical application value to improve the maintenance of aviation equipment.

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“…Then the mathematical expectation theorem of product for above random variables can be derived by the following formula [5] cov( , ) / ( )…”

Section: Construction Of Modelmentioning

confidence: 99%

Study on Aircraft Mechanics with Accessibility Appraisement of Aviation Equipment Based on Correlation Analysis Method

Gan

Duanmu

Gao

2013

AMM

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“…Where s A expresses the support degree of spare parts;U expresses the average time available of the equipment; s T expresses the average spare parts supply delay time caused by the lack of spare parts [4] . The support degree reflects the support of spare parts affects the extent of the equipment,spare parts support system goal is to ensure a certain support degree of spare parts.…”

Section: Spare Parts Support Analysismentioning

confidence: 99%

Spare Parts Support Model Optimization Algorithm

Gao

Jiang

Qiang

et al. 2012

AMM

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by deeply analyzing the impact factor of the support degree, the calculation formula of the support degree be extended to make the formula more reasonable. Taking into account the life of the old and new spare parts and the impact of scheduling for spare parts support, the spare parts scheduling support model has been established. According to the characteristics of the model, the introduction of the classic scheduling algorithm for optimization of spare parts, can effectively improve the efficiency of support.

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“…Maintenance equipment tools play an important role in the process of equipment maintenance support. They are not only the important parts of equipment support resources, but also the important carrier of repair and maintenance equipments [1]. Facing the actual model of multi-type equipments maintenance support, some performances and functions of maintenance tools which are allocated according to the constitution are similar.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Maintenance Equipment Tool Types Based on Triangle Fuzzy Number

Deng

Cheng

Wang

et al. 2014

AMM

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In the face of those cases which multi-type equipments are configured by organizational systems and types for maintenance support, some questions are indicated. For example, the functions of some equipment tools are repetitive and similar. The amount of types is large and so on. Those phenomena are bad to flexibility, support and preserving in army. The fuzzy theory and triangular fuzzy number are used in this paper. Colony benefit is obtained after positive and negative ideal point and grey correlation coefficients are confirmed. The similar maintenance equipment tools are selected further to integrate equipment tool types. The method followed subjective and impersonal illegibility and excerpted indexing system and weight values. It is validated to be feasible and effective.

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The Multi-Water Sources Allocation Research in Beijing after South-to-North Water Diversion

Cited by 3 publications

References 1 publication

Study on Aircraft Mechanics with Accessibility Appraisement of Aviation Equipment Based on Correlation Analysis Method

Study on Aircraft Mechanics with Accessibility Appraisement of Aviation Equipment Based on Correlation Analysis Method

Spare Parts Support Model Optimization Algorithm

Optimization of Maintenance Equipment Tool Types Based on Triangle Fuzzy Number

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