Steady state data extraction method of aero-engine

The invention belongs to the technical field of aero-engine data processing, and particularly relates to a steady-state data extraction method of an aero-engine. Comprising the following steps: 1, acquiring steady-state data of an engine, and determining an initial steady-state threshold according to the steady-state data of the engine; and 2, acquiring engine test data, performing time window processing on the engine test data according to the steady state threshold, and determining the state of the engine test data. According to the steady-state data extraction method of the aero-engine, extraction of steady-state data segments of different types of test data can be realized; different influence factors are effectively identified, and the accuracy of steady-state data extraction is improved. 本申请属于航空发动机数据处理技术领域，特别涉及一种航空发动机的稳态数据提取方法。包括：步骤一、获取发动机稳态数据，根据所述发动机稳态数据确定初始稳态阈值；步骤二、获取发动机试验数据，根据所述稳态阈值对所述发动机试验数据进行时间窗处理，确定所述发动机试验数据的状态。本申请的航空发动机的稳态数据提取方法，能够实现对不同类型的试验数据的稳态数据段的提取；有效地识别不同的影响因素，提高稳态数据提取的准确性。