Community Noise Impact of Advanced Aircraft Designs

Community Noise Impact of Advanced Aircraft Designs
Title Community Noise Impact of Advanced Aircraft Designs PDF eBook
Author
Publisher
Pages 76
Release 1996
Genre
ISBN

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Systems Analysis of Community Noise Impacts of Advanced Flight Procedures for Conventional and Hybrid Electric Aircraft

Systems Analysis of Community Noise Impacts of Advanced Flight Procedures for Conventional and Hybrid Electric Aircraft
Title Systems Analysis of Community Noise Impacts of Advanced Flight Procedures for Conventional and Hybrid Electric Aircraft PDF eBook
Author Jacqueline Leah Thomas
Publisher
Pages 223
Release 2020
Genre
ISBN

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Recent changes to aircraft approach and departure procedures enabled by more precise navigation technologies have created noise concentration problems for communities beneath flight tracks. There may be opportunities to reduce community noise impacts under these concentrated flight tracks through advanced operational approach and departure procedures and advanced aircraft technologies. A modeling method to assess their impacts must consider the contributions of aircraft engine and airframe noise sources as they vary with the position, thrust, velocity, and configuration of the aircraft during the flight procedure. The objective is to develop an analysis method to design, model, and assess the community noise reduction possibilities of advanced operational flight procedures performed by conventional aircraft and advanced procedures enabled by future aircraft concepts. An integrated analysis framework is developed that combines flight dynamics and noise source models to determine the community noise impacts of aircraft performing advanced operational approach and departure procedures. Aircraft noise due to the airframe and engine is modeled using an aircraft source noise module as each noise component varies throughout the flight procedure and requires internal engine performance states, the flight profile, and aircraft geometry. An aircraft performance module is used to obtain engine internal performance states and aircraft flight performance given the aircraft technology level. A force-balance-kinematics flight profile generation module converts the flight procedure definition into altitude, position, velocity, configuration, and thrust profiles given flight performance on a segment-by-segment basis. The system generates single-event surface noise grids that are combined with population census data to estimate population noise exposure for a given aircraft technology level and procedure. The framework was demonstrated for both advanced approach and departure procedures and advanced aircraft technologies. The advanced procedure concepts include modified speed and thrust departures as well as continuous descent, steep, and delayed deceleration approaches for conventional aircraft. The ability to model advanced aircraft technologies was demonstrated in the evaluation of using windmilling drag by hybrid electric aircraft on approach to allow the performance of steep and delayed deceleration approaches for noise reduction beyond the performance capability of standard gas-turbine aircraft.

Aircraft Community Noise Impact Studies

Aircraft Community Noise Impact Studies
Title Aircraft Community Noise Impact Studies PDF eBook
Author Douglas Aircraft Company
Publisher
Pages 75
Release 1977
Genre
ISBN

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Noise Impact on Communities from Aircraft

Noise Impact on Communities from Aircraft
Title Noise Impact on Communities from Aircraft PDF eBook
Author United States. Congress. Senate. Committee on Commerce, Science, and Transportation
Publisher
Pages 44
Release 1981
Genre Airplanes
ISBN

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Aircraft Community Noise Impact Model

Aircraft Community Noise Impact Model
Title Aircraft Community Noise Impact Model PDF eBook
Author
Publisher
Pages 21
Release 1998
Genre Airplanes
ISBN

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Aviation and the Environment: Impact of Aviation Noise on Communities Presents Challenges for Airport Operations and Future Growth of the national Airspace System

Aviation and the Environment: Impact of Aviation Noise on Communities Presents Challenges for Airport Operations and Future Growth of the national Airspace System
Title Aviation and the Environment: Impact of Aviation Noise on Communities Presents Challenges for Airport Operations and Future Growth of the national Airspace System PDF eBook
Author
Publisher DIANE Publishing
Pages 36
Release 2007
Genre
ISBN 9781422398951

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Community Noise Exposure Resulting from Aircraft Operations

Community Noise Exposure Resulting from Aircraft Operations
Title Community Noise Exposure Resulting from Aircraft Operations PDF eBook
Author Bolt, Beranek, and Newman, inc
Publisher
Pages 120
Release 1974
Genre Airplanes
ISBN

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