Method for detecting severe damage of energy conversion part oflarge hydraulic machinery

The invention discloses a method for detecting the severe damage of an energy conversion part of a large hydraulic machinery. In the operation process of the large hydraulic machinery, if the energy conversion part is seriously damaged, the geometric deformation of the energy conversion part causes the increase of the radial unbalanced force of the shafting, and the pressure pulsation characteristic value of the surrounding area of the energy conversion part and the vibration characteristic value of the corresponding structural component change. The invention provides a judgment coefficient family for comprehensively representing whether the large hydraulic machinery energy conversion part is seriously damaged or not for the first time, and discloses a judgment method for judging the large hydraulic machinery energy conversion part is seriously damaged by utilizing data of the judgment coefficient family for the severe damage of the large hydraulic machinery energy conversion part. The method is of great sign