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介绍美国航空航天局(NASA)格伦研究中心围绕智能推进理念,在主动控制、基于模型的控制和健康管理、分布式控制等领域进行的大量研究工作。智能推进旨在提高推进控制系统的智能化程度,采用更先进的建模仿真和控制技术,对抗恶劣工况、部件老化等对发动机性能造成的不利影响,使发动机在大空域、宽包线和长寿命期内保持最优工作性能。同时,智能推进还将延长推进系统工作寿命,提高安全性和可靠性,降低全寿命周期的使用维护成本。目前,基于模型的控制和健康管理已有多项关键技术通过飞行试验验证,技术成熟度已达到7级。主动控制和分布式控制还处于概念设计和实验室研究阶段,预计在2020年左右技术成熟度达到6级。智能推进将成为下一代航空航天推进系统的重要理念和核心支撑技术。
Introduction NASA Glenn Research Center focuses on intelligent propulsion concepts and extensive research efforts in areas such as active control, model-based control and health management, and distributed control. Intelligent promotion aims to improve the intelligent control system to promote the use of more advanced modeling and simulation and control technology to combat adverse conditions, parts aging and other adverse effects on engine performance, the engine in the large airspace, wide envelope and Maintain optimal performance over long life. At the same time, smart propulsion will also extend the working life of the system, increase safety and reliability, and reduce the cost of using and maintaining the entire life cycle. Currently, a number of key technologies have been validated through flight tests in model-based control and health management, and the technology maturity level has reached seven. Active control and distributed control are still in the conceptual design and laboratory research stage and are expected to reach a level 6 technology maturity around 2020. Intelligent propulsion will become the next generation of aerospace propulsion system, an important concept and core support technologies.