Multi-Condition Digital Twin Calibration for Axial Piston Pumps : Compound Fault Simulation

Researchers developed a multi-condition digital twin calibration framework for axial piston pumps that can simulate compound faults and enable zero-shot fault diagnosis. The physics-data coupled approach addresses data scarcity issues in traditional fault detection methods and demonstrates accurate reproduction of both single and compound faults in hydraulic systems.

• →Novel digital twin framework combines physics-based modeling with data to overcome fault data scarcity in hydraulic systems.
• →The system can accurately simulate compound faults affecting multiple friction pairs simultaneously in axial piston pumps.
• →Framework enables zero-shot fault diagnosis under previously unseen operating conditions and fault combinations.
• →Three-stage approach includes virtual flow sensing, CFD model calibration, and pipeline parameter identification.
• →Technology advances predictive maintenance capabilities for critical hydraulic systems in aerospace, marine, and heavy machinery.