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Comprehensive Acoustic Analysis for Urban Air Mobility Vehicles

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC21C0565
Agency Tracking Number: 205961
Amount: $749,482.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: A1
Solicitation Number: SBIR_20_P2
Solicitation Year: 2020
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-07-30
Award End Date (Contract End Date): 2023-07-29
Small Business Information
34 Lexington Avenue
Ewing, NJ 08618-2302
United States
DUNS: 096857313
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Daniel Wachspress
 (609) 538-0444
Business Contact
 Melissa Kinney
Phone: (609) 538-0444
Research Institution

A major innovative thrust in urban air mobility (UAM) is underway that could potentially transform how we travel by providing on-demand, affordable, quiet, and fast passenger-carrying operations in metropolitan areas using novel air vehicles that employ Distributed Electric Propulsion (DEP).nbsp; NASA is supporting the development of technology required for the success of these new UAM aircraft in which improved methods for acoustic modeling play a large role.nbsp; Safe and quiet operation are critical to public acceptance.nbsp; The proposing team intends to strongly leverage our recent major advances in the modeling and analysis of DEP UAM aircraft by enhancing our existing state-of-the-art DEP aircraft flight simulation, aeromechanics and acoustics analysis software with improved capabilities for modeling noise sources of specific importance to DEP UAM aircraft.nbsp; In Phase I, leveraged software was enhanced and demonstrated by performing acoustic predictions with high fidelity aeromechanics for a multirotor UAM aircraft in hover and transition flight with time-varying RPM on eight rotors.nbsp; The goal of the Phase II effort is to develop and deliver commercial-grade, comprehensive acoustic analysis for UAM aircraft, that would provide fast, accurate prediction of critical acoustic characteristics associated with DEP UAM aircraft, including (1) noise generated by the simultaneous operation of multiple, variable RPM rotors and props, (including coaxial rotors), (2) interacting rotor/prop/wing/airframe noise, (3) broadband noise pertinent to eVTOL UAM aircraft, (4) noise due to inflow turbulence from a variety of sources, and (5) electric motor noise.nbsp; The final software will include both a stand-alone analysis and, of significance, a flight simulation able to predict the acoustic impact of UAM aircraft control strategies during general maneuvering flight within realistic wind/turbulence environments during take-off, landing and cruise.

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

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