Development of new repair technologies for out-of autoclave aircraft composite components

非热压罐飞机复合材料部件修复新技术的开发

• 批准号: 428552-2011
• 负责人: Dano, MarieLaure
• 金额: $ 7.79万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=532577
• 关键词: Development; new; repair; technologies; out

Today a significant amount of primary structures of civil aircrafts are made of composite materials. This type of structures is mostly manufactured by autoclave processing. However, the need to increase production rate and to lower manufacturing cost have led to the development of new manufacturing techniques that do not require an autoclave. New out-of-autoclave (OOA) prepregs have been formulated to allow part manufacturing using vacuum-bag-only (VBO) under atmospheric pressure. These changes in the design and manufacture of commercial aircraft require new design and analysis tools, new methods of inspection and maintenance, and new repair methodology. Engineers responsible for damage assessment and repair designs currently do not have sufficient reliable analysis methodology or practical tools to design high confidence repairs.

目前，大量民用飞机的主要结构由复合材料制成。这类结构大多是通过高压釜加工制造的。然而，对提高生产率和降低制造成本的需求导致了不需要高压釜的新制造技术的发展。 新的高压灭菌器外（OOA）包装袋已经制定，允许在大气压下使用真空袋（VBO）进行部件制造。商用飞机设计和制造的这些变化需要新的设计和分析工具、新的检查和维护方法以及新的维修方法。负责损伤评估和修复设计的工程师目前没有足够可靠的分析方法或实用工具来设计高置信度的修复。