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Design Tools for Advanced Low Noise Rotors for Small VTOL UAS

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-19-P-0223
Agency Tracking Number: A191-019-1404
Amount: $107,887.23
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A19-019
Solicitation Number: 19.1
Solicitation Year: 2019
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-05-23
Award End Date (Contract End Date): 2020-03-02
Small Business Information
34 Lexington Avenue
Ewing, NJ 08618
United States
DUNS: 096857313
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Daniel A Wachspress
 Senior Associate
 (609) 538-0444
Business Contact
 Barbara A. Agans
Phone: (609) 538-0444
Research Institution

A major innovative thrust in Army tactical operations is routine use of small Group 1 UAS for surveillance and sensing missions. However, for effective and stealthy use of such assets, low acoustic signature is critical. At present, capabilities for designing such vehicles for minimum noise is extremely limited, especially when combined with the challenge of designing to meet critical mission requirements. The proposed Phase I/Phase II effort will fill this technology gap by enhancing state-of-the-art rotary-wing aerodynamic and aeroacoustic analysis with additional modeling capabilities needed for accurate acoustic prediction of small UAS noise and then developing a small UAS design optimization tool inclusive of acoustic signature using reduced order surrogate models generated from this enhanced analysis. The new design optimization tool will provide fast, accurate prediction of both the acoustic and aerodynamic characteristics associated with small UAS, including (1) noise generated by multiple, variable RPM proprotors, (2) interacting propeller/airframe noise (e.g., strut noise and prop/wing interaction noise), and (3) electric motor noise. Phase I will demonstrate the feasibility of the proposed approach. Phase II will develop and demonstrate a Group 1 multirotor UAS design optimization tool. All modeling and design capabilities will be validated through acoustic testing.

* Information listed above is at the time of submission. *

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