Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
14 matches · Acoustics
- NASA NTRS 2025 LaRC Technical Memorandum (TM)
Summary and Annotated Bibliography of Measurement Error Corrections with Potential Application in Future Quesst Mission Community Noise Studies
This document is motivated by likely needs of the Quesst mission community response tests, which will culminate in data collection and estimation of dose-response regression relationships for consideration by domestic an…
- NASA NTRS 2025 GRC Conference Paper
Reduction of Aircraft Noise Uncertainty for a Notional Supersonic Business Jet
NASA supported a study by the International Civil Aviation Organization on the environmental impact of adding supersonic aircraft to the existing global fleet by designing a notional 55-tonne supersonic business jet.
- NASA NTRS 2023 LaRC Presentation
Simulation-Based Aircraft Noise Certification: Challenges and Opportunities
- NASA NTRS 2022 LaRC Presentation
Review of Noise Metric Sensitivities for Analysis of Quiet Supersonic Overflight
Six different noise metrics (PL, ASEL, BSEL, DSEL, ESEL, and ISBAP) are currently used to quantify sonic boom levels from overflight of supersonic aircraft.
- NASA NTRS 2021 LaRC Technical Memorandum (TM)
Acoustic Flight Simulator Architecture, Noise Training Aid Manual, and Its Training Benefits
The Revolutionary Vertical Lift Technology project at NASA is researching source noise and response to reduce the noise impact of vertical takeoff and landing aircraft.
- NASA NTRS 2019 MSFC Abstract
Liftoff and Time Equivalent Duration Data Evaluation of Exploration Flight Test 1 Orion Multi-Purpose Crew Vehicle
The liftoff phase induces high acoustic loading over a broad frequency range for a launch vehicle. These external acoustic environments are used in the prediction of the internal vibration responses of the vehicle and co…
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with current and proposed aircraft noise certification requirements
Predicted engine core noise levels are compared with measured total aircraft noise levels and with current and proposed federal noise certification requirements.
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certif…
- NASA NTRS 2019 CDMS Conference Paper
Comparison of predicted engine core noise with proposed FAA helicopter noise certification requirements
Calculated engine core noise levels, based on NASA-Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and proposed FAA helicopter noise certif…
- NASA NTRS 2019 CDMS Contractor Report (CR)
Design methodology for a community response questionnaire on sonic boom exposure
A preliminary draft questionnaire concerning community response to sonic booms was developed. Interviews were conducted in two communities that had experienced supersonic overflights of the SR-71 airplane for several yea…
- NASA NTRS 2019 CDMS Conference Paper
Yaw and spin effects on high intensity sound generation and on drag of training projectiles with ring cavities
Projectiles containing axisymmetric ring cavities constitute aeroacoustic sources. These produce high intensity tones which are used for coding in the SAWE (Simulation of Area Weapons Effects) system.
- NASA NTRS 2011 CDMS Other
Helicopter engine core noise
Calculated engine core noise levels, based on NASA Lewis prediction procedures, for five representative helicopter engines are compared with measured total helicopter noise levels and ICAO helicopter noise certification …
- NASA NTRS 2010 LaRC Presentation
Airframe Noise Flight Test Measurements Using an Electret Condenser Microphone Array
An extensive collection of airframe noise flight test data has been acquired for a regional jet class of aircraft using a ground-based electret condenser microphone phased array system.
- NASA NTRS 2009 LaRC Abstract
Structural Response to Low Amplitude Sonic Booms
Two highly instrumented homes have been ensonified by low amplitude sonic booms. The resulting measurements have been analyzed 1) to gain insight to the dominant physical acoustics associated with sonic booms heard indoo…