Aero-engine fault diagnosis method and device, computer device and storage medium
An aero-engine and fault diagnosis technology, applied in combustion engines, computer parts, internal combustion piston engines, etc., can solve problems such as poor application effect and unfixed thresholds, and achieve the effect of improving the degree of intelligence and reducing labor costs
Pending Publication Date: 2022-05-20
AECC COMML AIRCRAFT ENGINE CO LTD
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[0004] The inventor found through research that: the threshold-based fault isolation diagnosis method of the related art is mainly applicable to the situation where the fault diagnosis logic is simple and the threshold value is constant, and for some situations where the fault diagnosis logic is complex (such as the need to combine multiple parameters, or the parameters require multiple Secondary preprocessing, or the threshold is not fixed, etc.) This method does not work well
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[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.
[0057] Relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
[0058]At the same time, it should be underst...
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The invention relates to an aero-engine fault diagnosis method and device, a computer device and a storage medium. The aero-engine fault diagnosis method comprises the following steps: acquiring sensor data related to a to-be-diagnosed fault in real time; performing feature extraction and feature combination on the acquired sensor data to form a group of sample data; inputting the group of sample data into a pre-trained fault probability model to obtain the fault probability of each feature point in the group of sample data; and judging whether the group of sample data has a fault according to the fault probability of each feature point. According to the method, manual diagnosis is replaced by a machine diagnosis method, so that the intelligent degree of complex fault diagnosis is improved, and meanwhile, the labor cost of test personnel is reduced.
Description
technical field [0001] The present disclosure relates to the field of aero-engines, in particular to an aero-engine fault diagnosis method and device, a computer device and a storage medium. Background technique [0002] During the test process of aero-engine, there are various faults, such as over-temperature, over-pressure or over-vibration of a certain component. These faults can cause degradation of engine performance in the slightest, and cause damage to components in severe cases, resulting in damage to the entire engine. In addition, since an aero-engine is a highly complex system involving many disciplines such as aerodynamics, engineering thermophysics, mechanics, and control, a large number of follow-up personnel will monitor the test data on site during the test run. Simultaneous test runs of two engines will pose a great challenge to human resources. Therefore, how to diagnose the faults of aero-engine accurately, quickly and save labor has become more and more ...
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IPC IPC(8): G06F30/15G06F30/27G06K9/62G06F17/18
CPCG06F30/15G06F30/27G06F17/18G06F18/22G06F18/24G06F18/214Y02T10/40
Inventor 罗大琴李洋徐建
Owner AECC COMML AIRCRAFT ENGINE CO LTD