The invention discloses
a domain adaptive adversarial open set cross-domain intelligent fault diagnosis method, which relates to the field of mechanical intelligent fault diagnosis, and comprises the following steps: respectively constructing a feature extractor, a private class classifier, a first auxiliary classifier and a second auxiliary classifier; training a private class classifier and a feature extractor by using an adversarial training method so as to obtain good classification performance of shared classes of a source domain and a target domain, and establishing a boundary for the shared classes and the private classes in the target domain; and maximizing the prediction
divergence of the first auxiliary classifier and the second auxiliary classifier so as to detect excluded
outlier target domain shared class samples and forcibly generate target feature representations similar to the source domain features. The invention also discloses
a domain adaptive confrontation open set cross-domain intelligent fault diagnosis
system. According to the method, the private class samples of the target domain can be identified as the unknown class while the shared class samples of the target domain and the source domain are aligned, and the method has relatively high cross-domain intelligent fault diagnosis accuracy in an open set fault diagnosis scene.