数字孪生在航空发动机燃烧室设计阶段的应用与展望

Application and Prospect of Digital Twin in Design Phase of Aero-Engine Combustion Chambers

随着航空发动机性能指标和系统复杂度的不断提升,数字孪生技术正在成为支撑航空发动机全生命周期管理的重要手段。燃烧室是发动机的心脏,其研制过程具有难度大、周期长、花费高等特点。基于数字孪生的设计技术能够预测燃烧室的性能,评估其可靠性,并对试验方案进行预先评估与优化,大幅缩短燃烧室设计的时间,同时降低经费支出。简述了航空发动机燃烧室在设计阶段面临的挑战,并针对数字孪生在航空发动机燃烧室设计阶段的应用与关键问题进行了简要的综述与展望。

With the ever-increasing requirements for the better performance of aero-engines,and the increasing complexity of the aero-engine system,digital twin is becoming an important tool to support the management of the whole life cycle of aero-engines.Being the heart of an aero-engine,the design phase of the combustion chamber is known for its difficulty,as well as its high cost in time and money.The digital-twin based design process can significantly reduce the time and cost of the design phase of the combustion chamber by predicting its performance,evaluating its reliability,as well as pre-evaluating and optimizing the testing protocol.In this work,the challenges faced by aero-engine combustion chambers in the design phase are briefly described,a brief review and outlook on the application and key issues of digital twins in the design phase of aero-engine combustion chambers are provided.