关键词: 民机设计, 多学科优化, 数值模拟

Abstract:

Based on the history of the civil transport research and development around the world, the requirements for future civil transports are pointed out and the importance of applying the advanced technologies into the design and manufacture processes is shown. In this paper, the market paradigm shift, i.e., transformation from the demand to offering the products of higher, faster and farther(technology-driven design) by the aircraft industry into the demand to offering the products that are both better in performance and faster and cheaper to produce(market-driven design), is discussed.The new demands on design paradigm,tools and processes are resulted from this kind of shifts.The tranditional design paradigm of sequential and iterative design cycles has gradually been moving towards a more integrated new designapp roach with underlying concepts like Virtual Product(VP)or Integrated Product and Process Development(IPPD).Multi-disciplinary Design Optimization(MDO)design is the key technique to realize the new integrated design approach.The approach of MDO and the demand of its industry application were briefly discussed in the paper.The Computational Fluid Dynamics(CFD)is a driver in the development towards this new integrated design process.The role for successful design of the civil transport was shown and its analysis and design functions were discussed detailly in this paper.Numerical simulation was the key modeling and simulating technology in current and future aircraft design,and also is important to the successful implementation of modern integrated aircraft design.

Key words: civil , transport , design,  , Multi-disciplinary , design , optimization,  , numerical , simulation