Rotor assembly system and method

• US 7,979,233 B2
• Filed: 07/21/2009
• Issued: 07/12/2011
• Est. Priority Date: 09/11/2000
• Status: Expired due to Term

• Current Assignee: Axiam, Inc.
• Original Assignee: Axiam, Inc.
• Inventors: DeBlois, J. Holly, Lee, Robert M.
• Primary Examiner(s): BHAT, ADITYA S
• Application Number:
  US12/506,480
• Publication Number:
  US 20090293276A1
• Time in Patent Office: 721 Days
• Field of Search: 702/127
• US Class Current: 702/127
• CPC Class Codes: F01D 21/003 Arrangements for testing or measuring for measuring vibrations G01H
• CPC Class Codes: F05D 2230/64 using positioning or alignment devices for aligning or centring, e.g. pins
• CPC Class Codes: Y10T 29/4932 Turbomachine making

Abstract

A method and system are disclosed for use in assembling a plurality of rotatable elements in the assembly of a turbine engine. The system and method include an initialization unit, a measurement unit, and a processing unit. The initialization unit receives and stores initialization data in a computer datastore. The initialization data includes a first set of initialization data that is representative of characteristics of a first rotatable element, and a second set of initialization data that is representative of characteristics of a second rotatable element. The measurement unit receives measured data including a first set of measured data characteristic of measured features of the first rotatable element, and a second set of measured data characteristic of measured features of the second rotatable element. The processor unit determines an optimal order and rotational arrangement of the first and second rotatable elements with respect to one another responsive to the first and second sets of initialization data and the first and second sets of measured data.

Claims

1. A method of assembling turbine engine modules, each module including a plurality of rotatable elements, there being a plurality of the modules in the assembly of a turbine engine, said method comprising:

providing module assembly means configured to;

receive initialization data in a computer datastore, said initialization data including a first set of initialization data that includes data that is representative of a design characteristic of a first rotatable element, and a second set of initialization data that is representative of a design characteristic of a second rotatable element;

obtain measured data including a first set of measured data that includes data that is representative of a measured characteristic of the first rotatable element, and a second set of measured data that includes data that is representative of a measured characteristic of the second rotatable element; and

using processor means, determine an optimal rotational arrangement of the first and second rotatable elements with respect to one another responsive to said first and second sets off initialization data and said first and second sets of measured data, resulting in an assembled module; and

providing as output, assembly parameters for assembling at least two modules of the turbine engine.

2. The method as claimed in claim 1, wherein a module is a low pressure compressor module, a high pressure compressor module, a high pressure turbine, or a low pressure turbine.

3. The method as claimed in claim 1, wherein a constant pressure is maintained by a hydraulic press during assembly of each module and the plurality of modules.

4. A system for use in assembling a plurality of modules, each module including a plurality of rotatable elements, in the assembly of a turbine engine, said system comprising:

module assembly means comprising;

initialization means for entering initialization data into a database, said initialization data including a first set of initialization data that includes data that is representative of a design characteristic of a first rotatable element, and a second set of initialization data that is representative of a design characteristic of a second rotatable element;

measurement means for permitting a user to enter measured data including a first set of measured data that includes data that is representative of a measured characteristic of the first rotatable element, and a second set of measured data that includes data that is representative of a measured characteristic of the second rotatable element; and

processor means for determining an optimal rotational arrangement of the first and second rotatable elements with respect to one another responsive to said first and second sets off initialization data and said first and second sets of measured data; and

assembly parameter means for assembling the at least two modules of the turbine engine.

5. A system as claimed in claim 4, wherein said first set of initialization data further includes data representative of a diameter of the first rotatable element.

6. A system as claimed in claim 4, wherein said first set of initialization data further includes data representative of a face surface of the first rotatable element.

7. A system as claimed in claim 4, wherein said first set of measured data further includes data representative of a radius of the first rotatable element.

8. A system as claimed in claim 4, wherein said measurement means includes at least one probe that is positioned at a known angular position with respect to a starting position of rotation of the first rotatable element.

9. A system as claimed in claim 4, wherein said first set of measured data includes data that is representative of an angular position of the first rotatable element with respect to a starting position.

10. A system as claimed in claim 4, wherein a module is a low pressure compressor module, a high pressure compressor module, a high pressure turbine, or a low pressure turbine.