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.

创新的制造技术带来了前所未有的机会来创建满足的新材料 复杂和限制性的飞机引擎规格。这个主要的五年合作项目带来了 创建新颖的多功能声材料来替代传统发动机衬里的技术解决方案。 这项研究是由国际监管委员会越来越严格的要求进行的。 飞机噪声，二氧化碳和NOX排放。感受到在广泛频率范围内的声音滥用 适当响应新的高效发动机配置。该项目由École进行 Polytechnique deMontréal和Safran是国际高科技集团和领先的设备制造商。 研究了三种新的破坏性技术，以产生由高的功能化的光结构 机械性能经过飞行认证的树脂。 （1）使用最先进的材料生产微观材料 聚合物组成的添加剂制造。 （2）识别的低机械性能泡沫 具有出色的声学特性，使用巧妙的高性能聚合物复制 铸造方法。 （3）带有扭曲咖啡馆的异国谐振材料是通过增材制造制造的。 将探索面部板纹理和原始穿孔。整合声学的各种设计 发动机组件中的材料将进行适航。代表大小的圆柱原型将 在特殊的发动机测试平台上用内流进行测试。最终结果是完整的技术 示威者，新型的声学衬里将集成到LEAP Engine Composite Fan Case。 这个雄心勃勃的项目是一个独特的机会，可以在多学科上培训36位高素质的人员 行业问题。他们将参与发展高级技术和科学专有技术，以及 国际软技能对加拿大行业有用。创新声学材料的实施是 预见下一代超高旁路比引擎。对加拿大制造的飞机的欺骗申请 通过Safran Nacelles和Safran通风系统以及最终的Safran Landing Systems进行预期。