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随着新能源汽车、火箭发动机系统、卫星等新技术和新装备的不断发展,对其携带液体燃料和高压气体的压力容器提出高气密、轻质量、长寿命的苛刻要求。对此,本文提出一种含超薄金属内衬轻量化复合材料压力容器的设计与制备技术。研究了缠绕纤维与芯模表面间滑线系数的表征方法,提出了基于工艺可实现的精密缠绕理论;研制出0.8mm厚超薄铝合金内衬;建立了仿壁虎脚结构的界面层设计理论模型,制备出超薄金属内衬与复合材料层间的超强界面层;掌握了复合材料结构的损伤自修复方法,提高了复合材料压力容器的可重复使用次数,所研制的轻量化复合材料压力容器相比同容积、同压力的金属容器减重70%。
With the continuous development of new technologies and new equipment such as new energy vehicles, rocket engine systems and satellites, high pressure tightness, light weight and long service life are required for pressure vessels carrying liquid fuel and high pressure gas. In this regard, this paper presents a lightweight metal composite material with ultra-thin metal lined pressure vessel design and preparation technology. The method of characterization of the slip coefficient between the wound fiber and the mandrel was studied and the theory of precision winding based on the technology was put forward. The 0.8mm thick ultrathin aluminum alloy liner was developed and the interface layer design theory Model to prepare super-superficial interlayers between the ultrathin metal liner and the composite material layer; mastering the self-repairing method of the composite material structure damage and increasing the reusable times of the composite material pressure vessel; the developed lightweight composite material Pressure vessel compared with the same volume, same pressure metal container weight loss of 70%.