液体火箭发动机健康监控技术研究现状

液体火箭发动机健康监控技术是改进和提高运载火箭、航天器可靠性与安全性的核心技术之一,对其进行研究具有重要的学术价值和工程应用价值。液体火箭发动机健康监控技术的研究主要包括液体火箭发动机故障检测与诊断理论方法、液体火箭发动机健康监控系统两方面。该文介绍了基于模型驱动的方法、基于数据驱动的方法和基于人工智能的方法,阐明了液体火箭发动机故障检测与诊断理论方法的研究现状,通过对美国液体火箭发动机典型健康监控系统的介绍,阐明了液体火箭发动机健康监控系统研究的若干进展及现状,并对液体火箭推进系统健康监控技术的演变趋势作了简要评述。

Research Status of the Health Monitoring Technology for Liquid Rocket Engines

The health monitoring technology for liquid rocket engines is one of the core technologies to improve the reliability and safety of launch vehicles and spacecrafts. The research on it has important academic values and engineering application values. The research on the health monitoring technology of liquid rocket engines mainly includes two aspects, i.e., the theoretical method for the fault detection and diagnosis and the health monitoring system. In this paper, a model-driven method, a datum-driven method, and an artificial-intelligence-based method are introduced, and the research status of the theoretical methods for the fault detection and diagnosis of liquid rocket engines is reviewed. Based on the introduction of the typical health monitoring system of liquid rocket engines in the United States of America, some progresses and the current status of the research on the health monitoring system of liquid rocket engines are expounded, and the evolution trend of the health monitoring technology of liquid rocket propulsion systems is briefly reviewed.