液氧煤油发动机地面试车故障监控系统研制

Development of a fault monitoring system for LOX/kerosene engine ground hot-test

为了降低试车中发动机故障对产品和试车台造成的危害,提高安全性,设计了液氧煤油高压补燃发动机地面试车故障监控系统。主要介绍了系统总体实施方案、检测算法及验证情况。多次实际热试车考核和对大量热试车数据的验证表明,该系统未出现一次误报警,能够比指挥员提前检测到故障,系统简单可靠,易于实现,经济性好,对实现地面试车、箭载发动机故障检测和报警具有工程应用价值。

To minimize catastrophic failures of SCCLRE in hot-tests, a fault monitoring system for LOX/kerosene engine ground hot-test is developed. The framework of the fault monitoring system, and the monitoring algorithms are described in this paper. The fault monitoring system has been applied in LOX/kerosene engine ground hot-tests and its validation was demonstrated. It can provide engine hot run early fault-detecting without false alarm and can detect the faults more earlier than the human commander could. This system is simple and takes advantage of low cost and high reliability. It can be applied in engine ground test and launch vehicle for engine fault-detecting.