Modeling of Integrally Bladed Rotor (IBR) Blends

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,722.00
Award Year:
2013
Program:
STTR
Phase:
Phase I
Contract:
N68335-13-C-0372
Award Id:
n/a
Agency Tracking Number:
N13A-002-0312
Solicitation Year:
2013
Solicitation Topic Code:
N13A-T002
Solicitation Number:
2013.A
Small Business Information
Simmetrix, Inc. (Currently Simmetrix Inc)
10 Halfmoon Executive Park Drive, Clifton Park, NY, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
012076795
Principal Investigator:
Ottmar Klaas
Senior Software Engineer
(518) 348-1639
oklaas@simmetrix.com
Business Contact:
Mark Beall
President
(518) 348-1639
mbeall@simmetrix.com
Research Institution:
Duke University
Keith Hurka-Owen
220 W. Main St, Ste. 710
Durham, NC, 22705-
(919) 684-3030
Nonprofit college or university
Abstract
Integrally bladed rotors (IBR), also called blisks, are becoming increasingly common in the compressor and fan sections of modern turbine engines. The integration of the blades and disks into a single part has the advantages of reduced part count, reduced weight, increased reliability, and increased performance. However, a drawback of this technology is that individual blades cannot be easily replaced and thus blending is typically used to resolve minor damage to blades. Blending involves removing material around the damaged area to reduce the stress concentrations that could lead to cracking and subsequent failure. But this process also changes the mechanical, dynamic, and aerodynamic properties of the blisk. This project will combine the expertise of Simmetrix, Duke University and GE to create a system to model the effects of introducing blends into a blisk, giving the ability to accurately predict the structural and aerodynamic effects of such a repair. By being able to model these effects, the blend shape and size can be optimized minimizing the impacts on the performance and reliability of the engine.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government