US 2012/0073375 A1 · METHOD FOR CHECKING THE MECHANICAL INTEGRITY OF STABILIZING ELEMENTS ON THE ROTOR BLADES OF A TURBINE AND SCANNING DEVICE FOR IMPLEMENTING THE METHOD

Abstract

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.

Claims19

Dependent claims

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.

Dependencies are inferred from the claim text.

Facts

Application

13/197,828Filed 4 Aug 2011

Priority

DE 10 2010 033 302.64 Aug 2010

Published

29 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G01N 29/265
Arrangements for orientation or scanning by relative movement of the head and the sensor: by moving the sensor relative to a stationary material
G01N 29/07
Analysing solids: by measuring propagation velocity or propagation time of acoustic waves
G01N 29/28
Details , e.g. general constructional or apparatus details: providing acoustic coupling , e.g. water
G01N 2291/2693
Various geometry objects: rotor or turbine parts

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

Life of this patent

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

Life of this patent

Abstract

Claims19