Design and Implementation of Engineering Database in Integrated Development System for Carbody of Multiple Unit

According to the requirement and flow of data in design system for carbody of multiple unit, the particularity of integrating the development system with engineering database is introduced, and the effect of engineering database is discussed. The database for body design includes: materials databases, standards databases, service conditions databases and history experience databases. The overall structure of the databases and their database model are established. The design and the process of implementation were discussed in detail. This database for multiple unit body integrated development (structural design, static strength check, fatigue reliability analysis and design evaluation) provides a unified, exoteric and professional data environment. It has important engineering significance for improving the efficiency of the body design and promoting the carbody design.