METHOD OF TEST OF TURBOMACHINE HOUSINGS FOR PROOF AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2015 - IPC G01M7/08 G01M15/14 

FIELD: machine building.

SUBSTANCE: one of the blades installed in the rotor located inside the stationary housing is weakened in its cross section, at achievement by the rotor of the pre-set rotation frequency and heating of the rotor housing and details up to the required temperature the break of this blade is performed with subsequent interaction of the broken part with the housing. The blade break is performed by means of the load placed in the channel of the rotor disk under the broken blade, and at the pre-set moment loading this blade with the additional force providing its break. The device includes the rotor with blades located in the housing, the drive for rotor rotation, the frequency rotation control system, and the broken blade is implemented with weakened (due to reduction of the cross section area) section. In the channel of the rotor disk under the broken blade the load is located which is fixed so that at the pre-set moment under the action of the executive mechanism to provide free radial movement of the load under the action of centrifugal forces before interaction with the broken blade above its weakened section.

EFFECT: guaranteed blade break in pre-set conditions providing identity of movement of the broken part of the blade along the trajectory of the blade broken in real operating conditions.

5 cl, 1 dwg