METHOD AND SYSTEM FOR AUTOMATED REPAIR DESIGN OF DAMAGED BLADES OF A COMPRESSOR OR TURBINE

• US 20050033555A1
• Filed: 11/22/2002
• Published: 02/10/2005
• Est. Priority Date: 11/22/2002
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Bailey, Mark James, Tanner, Joseph Steven
• Granted Patent: US 6,915,236 B2
• Time in Patent Office: Days
• US Class Current: 702/183
• CPC Class Codes: B23P 6/002 Repairing turbine components, e.g. moving or stationary blades, rotors, B23P6/045 takes precedence
• CPC Class Codes: F01D 5/005 Repairing methods or devices
• CPC Class Codes: Y10T 29/4973 Replacing of defective part

Abstract

A method is disclosed for evaluating a damaged blade in a compressor or turbine using a computer system accessing a database of blade repair information, where the method includes: selecting a blade damage geometry category corresponding to the damage of the blade from a plurality of blade damage geometry categories; measuring the blade damage, and generating a repair geometry for the blade based on the blade damage measurements and the selected blade damage geometry category.

Claims

1. A method for evaluating a damaged blade in a compressor or turbine using a computer system accessing a database of blade repair information, said method comprising:

a. selecting a blade damage geometry category corresponding to the damage of the blade from a plurality of blade damage geometry categories stored in said database;

b. measuring the blade damage and inputting into the computer system blade damage measurements, and

c. generating a repair geometry for said blade damage based on the blade damage measurements and the selected blade damage geometry category, wherein said repair geometry is generated by said computer system and includes dimensions of the repair geometry, and displaying a diagramof the blade repair geometry.

2. A method as in claim 1 further comprising identifying the damaged blade and accessing a database of information regarding the identified blade.

3. A method as in claim 1 wherein the blade damage geometry category is selected for a plurality of categories including bent blade tip, missing blade tip, blade crack, and blade edge dent, and wherein each category is graphically displayed by the computer system.

4. A method as in claim 1 wherein measuring the damage of the blade includes measuring a distance from a blade tip to the damage.

5. A method as in claim 1 further comprising comparing the blade damage measurements to repairable blade limits accessed from said database and corresponding to said selected blade damage geometry category, and generating the blade repair geometry after determining that the blade damage measurements are within said limits.

6. A method as in claim 5 further comprising generating an instruction to extract the damaged blade after determining that the blade damage measurements are beyond said limits.

8. A method as in claim 1 wherein said generating the blade repair geometry includes generating instructions regarding blade repair dimensions.

9. A method as in claim 1 further comprising determining an effect of the blade repair on a performance of the compressor or turbine.

7. (Cancelled)

10. A system for evaluating a damaged blade in a compressor or turbine comprising:

a computer system accessing a database of blade repair information;

an interactive damaged blade disposition form generated by said computer system, said disposition form including data fields for entering blade identification information, damage type and blade damage dimensions, and

a blade repair geometry form generated by said computer system including a displayed repair geometry diagram and repair geometry dimensions generated by said computer system based on the blade damage type and blade damage dimensions entered through said disposition form.

11. A system as in claim 10 wherein said data fields for entering blade identification information are electronically linked to a database of information regarding blades corresponding to the damaged blade.

12. A system as in claim 10 wherein said damage type is selectable from a plurality of damage types including bent blade tip, missing blade tip, blade crack, and blade edge dent.