Through dynamic time warping analysis to the hot-fire test data and simulated fault data of a certain liquid rocket engine,the warped path sets were obtained.

• 对某大型液体火箭发动机的热试车数据及通过发动机模型仿真得到的故障数据进行动态时间弯曲分析,得到弯曲路径集,然后结合决策树方法进行了故障检测和诊断。