# A CNN model based on innovative expansion operation improving the fault diagnosis accuracy of drilling pump fluid end

> Research article (Mechanical Systems and Signal Processing, 2022) · cited 67× · AI/ML

**Wikidata**: [openalex:W4310211219](https://www.wikidata.org/wiki/openalex:W4310211219)  
**Source**: https://4ort.xyz/entity/a-cnn-model-based-on-innovative-expansion-operation-improving-the-fault-diagnosis-accuracy-of-drilling-pump-fluid-end