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, Annie
• 金额: $ 26.01万
• 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: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=697389
• 关键词: Integration; absorbing; materials; composite; structures

Innovative manufacturing technologies bring unprecedented opportunities for creating new materials that meet complex and restrictive aircraft engines specifications. This major five-year collaborative project brings technological solutions for creating novel, multifunction acoustic materials to replace traditional engine liners. The research is motivated by increasingly stringent requirements from international regulatory boards on aircraft noise, CO2 and NOx emissions. Sound absorption over a broad frequency range is sought in order to respond adequately to new, high-efficiency engine configurations. The project is carried out by École Polytechnique 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 high mechanical performance flight-certified resins. (1) Micro-meshed materials are produced using state-of-the-art additive manufacturing of polymeric composites. (2) Low mechanical performance foams that are recognized for having excellent acoustic properties are replicated with high-performance polymers using an ingenious casting 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 acoustic materials in engine components will be tested for airworthiness. Representative-size cylindrical prototypes will be tested with internal flow on a special engine test platform. The final outcome is a full scale technological demonstrator, 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 multidisciplinary industry problems. They will engage in developing advanced technical and scientific know-how and international soft skills useful to the Canadian industry. Implementation of the innovative acoustic materials is foreseen on next generation ultra-high bypass ratio engines. Devired applications to Canadian-made aircrafts are expected through Safran Nacelles and Safran Ventilation Systems, and eventually Safran Landing Systems.

创新的制造技术为创造符合要求的新材料带来了前所未有的机遇 这个为期五年的重大合作项目带来了复杂且严格的飞机发动机规格。 创造新颖的多功能声学材料以取代传统发动机衬套的技术解决方案。 该研究的推动因素是国际监管委员会日益严格的要求 寻求在宽频率范围内吸收飞机噪音、二氧化碳和氮氧化物排放。 充分响应新的高效发动机配置 该项目由 École 实施。 蒙特利尔理工学院和赛峰集团是一家国际高科技集团和领先的设备制造商。 研究了三种新的颠覆性技术，以生产由高强度材料制成的功能化轻型结构 (1) 采用最先进的技术生产微网格材料 (2)公认的低机械性能泡沫 使用巧妙的高性能聚合物复制了具有出色声学特性的 (3)采用增材制造方式制造具有扭曲腔体的奇异谐振器材料。 将探索面板纹理和原始穿孔的各种集成声学设计。 发动机部件材料将进行适航性测试。 在特殊的发动机测试平台上进行内部流程测试，最终结果是全面的技术。 演示器中，新型隔音衬里将集成到 LEAP 发动机复合材料风扇箱中。 这个雄心勃勃的项目是培训 36 名多学科高素质人才的独特机会 他们将致力于开发先进的技术和科学知识并解决行业问题。 对加拿大工业有用的国际软技能是创新声学材料的实施。 预计将应用于加拿大制造的飞机的下一代超高涵道比发动机。 预计将通过赛峰短舱和赛峰通风系统，并最终通过赛峰起落架系统。