从某型民航客机发动机机队管理的实际出发,利用HOLT双参数指数平滑方法,建立基于机载QAR数据的对称发动机性能参数的差异监控模型,并给出实现对称发动机差异监控的算法。算例分析表明模型和算法能有效地识别发动机运行状态,并能预测发动机故障征兆,使发动机排故端口提前,且方法简单易于实现。 Based on the actual fleet management of a civil aviation airliner, the HOLT two-parameter exponential smoothing method was used to establish the monitoring model of the difference of performance parameters of symmetrical engines based on airborne QAR data. The algorithm to realize the symmetrical engine differential monitoring was also given. The case study shows that the model and algorithm can effectively identify the engine running status, predict the engine fault symptoms, advance the engine troubleshooting port, and the method is simple and easy to implement.