Integration of absorbing materials in composite structures for turbofan engine noise reduction

将吸波材料集成到复合材料结构中用于涡轮风扇发动机降噪

• 批准号: 522525-2017
• 负责人: Ross, AnnieMFA
• 金额: $ 15.29万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=754364
• 关键词: Integration; absorbing; materials; composite; structures

Innovative manufacturing technologies bring unprecedented opportunities for creating new materials that meetcomplex and restrictive aircraft engines specifications. This major five-year collaborative project bringstechnological solutions for creating novel, multifunction acoustic materials to replace traditional engine liners.The research is motivated by increasingly stringent requirements from international regulatory boards onaircraft noise, CO2 and NOx emissions. Sound absorption over a broad frequency range is sought in order torespond adequately to new, high-efficiency engine configurations. The project is carried out by ÉcolePolytechnique de Montréal and Safran, an international high-tech group and leading equipment manufacturer.Three new disruptive technologies are investigated to produce functionalized light structures made of highmechanical performance flight-certified resins. (1) Micro-meshed materials are produced using state-of-the-artadditive manufacturing of polymeric composites. (2) Low mechanical performance foams that are recognizedfor having excellent acoustic properties are replicated with high-performance polymers using an ingeniouscasting method. (3) Exotic resonator materials with twisted cavities are made through additive manufacturing.Face sheet textures and original perforations will be explored. Various designs for integrating acousticmaterials in engine components will be tested for airworthiness. Representative-size cylindrical prototypes willbe tested with internal flow on a special engine test platform. The final outcome is a full scale technologicaldemonstrator, where novel acoustic liners will be integrated to a LEAP engine composite fan case.This ambitious project is a unique opportunity to train 36 highly qualified personnel on multidisciplinaryindustry problems. They will engage in developing advanced technical and scientific know-how andinternational soft skills useful to the Canadian industry. Implementation of the innovative acoustic materials isforeseen on next generation ultra-high bypass ratio engines. Devired applications to Canadian-made aircraftsare expected through Safran Nacelles and Safran Ventilation Systems, and eventually Safran Landing Systems.

创新的制造技术为创造满足复杂和限制性航空发动机规格的新材料带来了前所未有的机会。这项为期五年的重大合作项目为制造新型多功能声学材料以取代传统发动机衬套带来了技术解决方案。该研究的动机是国际监管委员会对飞机噪音，CO2和NOx排放的日益严格的要求。为了充分响应新的高效发动机配置，需要在较宽的频率范围内进行吸声。该项目由蒙特利尔理工大学和国际高科技集团和领先的设备制造商赛峰集团共同实施，研究了三种新的颠覆性技术，以生产由高机械性能飞行认证树脂制成的功能化轻结构。(1)微孔材料是使用最先进的聚合物复合材料增材制造技术生产的。(2)低机械性能泡沫被公认为具有优异的声学性能，使用巧妙的铸造方法与高性能聚合物复制。(3)通过增材制造技术制造具有扭曲腔体的奇特谐振器材料。将探索面板纹理和原始穿孔。各种将声学材料集成到发动机部件中的设计将进行适航性试验。将在一个特殊的发动机试验平台上对具有代表性尺寸的圆柱形原型进行内流试验。最终的成果是一个全尺寸的技术演示器，其中新型声学衬里将集成到LEAP发动机复合材料风扇壳体中。这个雄心勃勃的项目是一个独特的机会，可以培训36名高素质的人员解决多学科的行业问题。他们将致力于发展对加拿大工业有用的先进技术和科学知识以及国际软技能。创新的声学材料的实施预计下一代超高涵道比发动机。预计将通过赛峰机舱和赛峰通风系统，并最终通过赛峰着陆系统，对加拿大制造的飞机进行定制应用。