The cavitation phenomenon is an important factor affecting the safe and stable operation of hydraulic machinery units. units can lead to increased vibration, reduced efficiency, erosion blades. Therefore, a method needed determine incipient runner This study initiated from acoustic characteristics bubbles generated by model turbines radiated sound energy during cavitation. noise are studied. Af...

Abstract Extreme values of strain signals are important for hydroelectric turbine runners fatigue assessment. However, due to measurements limitations such as short data length and limited subset measured operation conditions, the extreme rarely fully captured. Our study aims estimate runner at non-measured operating conditions by interpolating components from ones. The method is based on peaks...