Combined Analytical and Experimental Approaches to Rotor and Dynamic Component Stress Predictions

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0184
Agency Tracking Number: N081-021-0561
Amount: $749,811.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solitcitation Year: 2008
Solitcitation Topic Code: N08-021
Solitcitation Number: 2008.1
Small Business Information
Technical Data Analysis, Inc.
7600A Leesburg Pike, Suite 204, West Building, Falls Church, VA, 22043
Duns: 010983174
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chance McColl
 Director of Engineer - Ma
 (770) 516-7750
 cmccoll@tda-i.com
Business Contact
 G. Bradfield
Title: Director of Engineer - Ma
Phone: (703) 237-1300
Email: sbradfield@tda-i.com
Research Institution
N/A
Abstract
The objective of this proposal is to combine analytical modeling and experimental data to dramatically improve the accuracy of predictions for individual blade loads and stresses in dynamic components. The overall proposed approach can be summarized as follows: 1) An iterative load/strain convergence analysis toolkit is developed that combines measured rotor loads data with numerical modeling techniques to improve loads predictions across broad flight regimes. 2) A sensor/measurand optimization is performed, wherein the required set of measurands (type and hierarchy) are defined. 3) A system degradation analysis is performed to determine the effects of loss of measurement on the analysis. 4) the proposed procedure is validated by performing well-controlled laboratory experiments.

* information listed above is at the time of submission.

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