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一般认为,现代文明的三大支柱——材料、能源和信息,这些是影响全局的综合性科技领域。航空科技发展的历史和现状都证明它们对飞机性能的重大影响,而且这种影响今后将更为突出。 预计未来的二十年中,飞机性能的提高和改善,将在相当大的程度上寄希望于材料和工艺的发展。 一、航空材料和工艺 的发展趋势 预计到2000年时,将会出现推重比12的发动机、全复合材料结构飞机、高超音速(M≥4)飞机、隐形飞机等。在九十年代,飞机的战术和技术性能将会发生巨大变化,从而导致对材料和工艺提出更高要求。总的趋势是: 1.各类各向异性材料(如复合材料、定向
Generally believed that the three pillars of modern civilization - materials, energy and information, these are the overall impact of the overall science and technology. The history and current status of the development of aviation science and technology all prove that they have a significant impact on the performance of the aircraft and that this impact will become more prominent in the future. It is estimated that the improvement and improvement of aircraft performance in the next two decades will largely depend on the development of materials and processes. First, the development trend of aviation materials and technology It is estimated that by the year 2000, there will be a thrust-weight ratio of 12 engines, all-composite aircraft structure, hypersonic (M ≥ 4) aircraft, stealth aircraft. In the nineties, great changes have taken place in the tactical and technical performance of aircraft, resulting in higher demands on materials and workmanship. The general trend is: 1. All kinds of anisotropic materials (such as composite materials, orientation