Method for checking the mechanical integrity of stabilizing elements on the rotor blades of a turbine and scanning device for implementing the method

摘要

A method for checking a mechanical integrity of at least two stabilizing elements includes providing the at least two stabilizing elements that mechanically interconnect blade airfoils of rotor blades of a turbine in a circumferential direction of the turbine in an installed state of the turbine. The at least two stabilizing elements are adjacent to one another and inter-engage to form an engagement section having a material volume of the at least two stabilizing elements in the engagement section. The material volume of the at least two stabilizing elements is scanned, in an automated manner using ultrasound, so as to determine whether cracks are present. The scanning is performed from an outside of the at least two stabilizing elements.

主权项

1. A method for checking a mechanical integrity of at least two stabilizing elements comprising:
providing the at least two stabilizing elements, which mechanically interconnect blade airfoils of rotor blades of a turbine in a circumferential direction of the turbine in an installed state of the turbine, the at least two stabilizing elements being adjacent to one another and inter-engaging to form an engagement section having a material volume of the at least two stabilizing elements in the engagement section; and scanning, in an automated manner using ultrasound, the material volume so as to determine whether cracks are present, the scanning being performed from an outside of the at least two stabilizing elements along planar outer surfaces of the at least two stabilizing elements which delimits the at least two stabilizing elements in the engagement section.