Aircraft Calendar Life Calculation And Evaluation System

The calculation and evaluation of military aircrafts?calendar life is a large system project which is very complex, multi-fields related, and becomes an more and more important task of our national defense recently. But not only in the theory field, but also in the supporting software for this project, we are beginners. Considering today's status, this paper develops a software system for calendar life calculation and evaluation. Aircraft serving in bad atmosphere, researches on calendar life have its own characteristics: complex environment, various material properties, flying spectrum and different structure types, etc.. All these aspects influence the research, and many problems need to be resolved, such as: spectrum simplification, compile of environment or equivalent spectrum, life of anti-corrosion coat, construction of engineering module for calendar life calculation. This software system can help researchers to perform mathematical calculation and evaluation; can also do all kinds of repetitive work. Especially, basing on some types of data structures and algorithms, this software will assist researchers to build applied engineering modules after dealing with the large experiment data. This paper analyzed system structure according to the methodology of Object Oriented System Analysis and Design, and divided it into lots of modules. This system has the following features: 1, Common Method of Organization; 2, Abstraction; 3, Object Inheritance; äº'äº'豆 44, Polymorphism of Object;5, Software Module Reuse;On the other hand, this paper built the Environment Information DB. This database includes not only factors, which influence aircraft life, but also that factors which are not considered in today's calculation modules. The whole procedure of database construction follows the 3rd Normalization Format, and includes the building of data table, the restrictions among them, and references between each other. All these things ensure the integrity, consistency and security of the database. This paper reached expected goals, which are the construction of Environment Information Database, reasonable structure of aircrafts?calendar life calculation and evaluation software system.