航空发动机数据库逻辑结构的研究

成功地建立航空发动机数据库的关键，是根据数据模型分析，研究的结果进行数据库总体逻辑结构设计，经过分析，研究采用关系型数据理论，使航空发动机数据库具有合理的逻辑结构，航空发动机是一种在不断发展中的技术密集型的热动力机械产品，它不但涉及许多学科与技术领域，而且本身结构得杂，型式多样，在建立关系型航空发动机数据库时，研究描述航空发动机的各种数据间的关系模式与函数依赖关系，是建立数据模型的主要环节，数据库

Research on Logical Structure of Aeroengine Data Base

The key to creating the aeroengine data base successfully is the foundation to make the design of the data base logical structure according to the result of data model analysis and study.As is well known,aeroengine is a technology intensive mechanical thermodynamic product developed continuously.It covers many disciplines and technical fields,and has complicated various structures.How to describe the aeroengine's relative model of varied data and function dependence is the key to creating the aeroengine data model.The building of the aeroengine data base model depend on the analysis of aeroengine data which contains character,digit,picture and logical data.