Braided Composites for Aircraft Fuselage Frames

今天的飞机都是用坚固轻便的复合材料制造的。目前的制造技术主要局限于劳动密集型的聚合物预浸渍层逐层沉积，然后在昂贵的高压灭菌器中固化聚合物。航空航天工业正在寻求降低制造复合结构部件的成本。制造航空航天工业的承重结构是一个**挑战，蒙特利尔理工大学、宇航技术中心（CTA）和纺织技术中心（GCTTG）决定与庞巴迪航空结构和工程服务（BAES）合作，采用新技术来解决这个问题。该项目旨在开发一种使用定制的自动化编织技术和结构注入成型工艺制造复合材料飞机机身框架的工艺。该项目将确定飞机机身框架的设计包络，建立编织织物结构模型，开发编织技术，开发非高压釜灌注技术，生产编织c型框架样品并评估成本。关于编织c型框架**制造的项目提案将培养大学和学院水平的高素质人才。它还将为学术界和工业界之间创造巨大的知识转移机会。通过帮助生产更便宜、更安全、更轻、更环保的飞机，结果将对BAES和加拿大非常有利。

Today's aircrafts are built using strong and lightweight composite materials. Current manufacturing techniques**are mostly limited to labor intensive layer-by-layer deposition of polymer pre-impregnated plies followed by**polymer cure in an expensive autoclave cure. Aerospace industry is looking to reduce the costs for fabricating**composite structural components. Manufacturing of load-bearing structure in the aerospace industry is a**challenge that Polytechnique Montreal, Centre technologique en aérospatiale (CTA) and Center for Textile**Technologies (GCTTG) decided to address using novel technologies in partnership with Bombardier**Aerostructure and Engineering Services (BAES). This project aims at developing a process to manufacture**composite aircraft fuselage frames using tailored automated braiding technologies and structural infusion**molding process. This project will define the design envelope for aircraft fuselage frames, model braided**textile 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-frame**manufacturing will train highly qualified personnel at both the university and college level. It will also create**great knowledge transfer opportunities between academia and industry. The outcomes will be highly beneficial**to BAES and Canada by helping to produce cheaper, safer, lighter and greener aircrafts.