Braided Composites for Aircraft Fuselage Frames

今天的飞机是用坚固而轻便的复合材料制造的。目前的制造技术大多局限于劳动密集型的聚合物预浸层的逐层沉积，然后在昂贵的高压罐中固化聚合物。航空航天工业正在寻求降低制造复合材料结构部件的成本。航空航天工业承重结构的制造是一个挑战，蒙特利尔理工大学、空间技术中心(CTA)和纺织技术中心(GCTTG)决定与庞巴迪航空结构和工程服务公司(BAES)合作，使用新技术来解决这一问题。该项目旨在开发一种使用定制的自动编织技术和结构注塑工艺来制造复合材料飞机机身骨架的工艺。该项目将确定飞机机身框架的设计包络，建立编织结构模型，开发编织技术，开发非高压灭菌器浸泡技术，生产编织C框架演示器，并进行成本评估。编织C形钢制造的项目提案将培养大学和学院层面的高素质人才。它还将创造学术界和产业界之间的知识转移机会。其成果将有助于生产更便宜、更安全、更轻和更环保的飞机，从而极大地有利于BAES和加拿大。

Today's aircrafts are built using strong and lightweight composite materials. Current manufacturing techniquesare mostly limited to labor intensive layer-by-layer deposition of polymer pre-impregnated plies followed bypolymer cure in an expensive autoclave cure. Aerospace industry is looking to reduce the costs for fabricatingcomposite structural components. Manufacturing of load-bearing structure in the aerospace industry is achallenge that Polytechnique Montreal, Centre technologique en aérospatiale (CTA) and Center for TextileTechnologies (GCTTG) decided to address using novel technologies in partnership with BombardierAerostructure and Engineering Services (BAES). This project aims at developing a process to manufacturecomposite aircraft fuselage frames using tailored automated braiding technologies and structural infusionmolding process. This project will define the design envelope for aircraft fuselage frames, model braidedtextile architectures, develop the braiding technology, develop the out-of-autoclave infusion technology,produce braided C-frame demonstrators and evaluate the costs. The project proposal on braided C-framemanufacturing will train highly qualified personnel at both the university and college level. It will also creategreat knowledge transfer opportunities between academia and industry. The outcomes will be highly beneficialto BAES and Canada by helping to produce cheaper, safer, lighter and greener aircrafts.