Topic
Aircraft noise
About: Aircraft noise is a research topic. Over the lifetime, 3051 publications have been published within this topic receiving 32039 citations.
Papers published on a yearly basis
Papers
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01 May 2012
TL;DR: A cooperative flight test by NASA, Bell Helicopter and the U.S. Army to characterize the steady state acoustics and measure the maneuver noise of a Bell helicopter 430 aircraft was accomplished.
Abstract: A cooperative flight test by NASA, Bell Helicopter and the U.S. Army to characterize the steady state acoustics and measure the maneuver noise of a Bell Helicopter 430 aircraft was accomplished. The test occurred during June/July, 2011 at Eglin Air Force Base, Florida. This test gathered a total of 410 data points over 10 test days and compiled an extensive data base of dynamic maneuver measurements. Three microphone configurations with up to 31 microphones in each configuration were used to acquire acoustic data. Aircraft data included DGPS, aircraft state and rotor state information. This paper provides an overview of the test.
14 citations
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TL;DR: A geared turb ofan with an increased bypass ratio promises reduced engine noise generation if compared to conventional turbofan engines with lower bypass ratios.
Abstract: A geared turbofan with an increased bypass ratio promises reduced engine noise generation if compared to conventional turbofan engines with lower bypass ratios. As a result, the dominance of other ...
14 citations
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TL;DR: In this article, a review of major components of airframe noise and technologies with the greatest potential to reduce the non-propulsive component of aircraft noise is presented, which is the dominant component of the total noise radiated from commercial aircraft.
Abstract: The continuous increase of the air traffic linked to the operations around airports leads to increase the community noise problem. Aircraft noise is an issue of enormous environmental and technological impact. Projected growth in significant quieting of modern jet engine has brought renewed attention to the nonpropulsive component of aircraft noise. Airframe-generated noise can be the dominant component of the total noise radiated from commercial aircraft, particularly for large aircraft and especially during the landing approach. In this paper, a review of major components of airframe noise and technologies with the greatest potential to reduce airframe noise are presented.
14 citations
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01 Jan 2022
TL;DR: In this paper , the ICAO Balanced Approach to aircraft noise management in airports is reviewed in accordance with historical and technological challenges, and four basic elements of the BA are subject to noise exposure control with dominant emphasis on reduction of noise at source and compatible land usage inside the noise zoning around the airports.
Abstract: Abstract ICAO Balanced Approach (BA) to aircraft noise management in airports is reviewed in accordance with historical and technological challenges. All four basic elements of the BA are subject to noise exposure control with dominant emphasis on reduction of noise at source and compatible land usage inside the noise zoning around the airports. Noise abatement procedures and flight restrictions are used at any airport due to its specific issues and should be implemented on a basis of cost–benefit analysis. Noise exposure reduction is an intermediate goal, a final goal—to reduce noise impact, which is mostly represented by population annoyance as a reaction to noise exposure, is discussed also.
14 citations
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01 Jan 1978
TL;DR: The Noise Control Handbook as discussed by the authors provides a basic guide for preparing, enforcing, and meeting noise control requirements in industrial and vehicular environments, as well as practical applications of the commonly used Equivalent Sound (ES) level system of measuring noise.
Abstract: NOISE CONTROL
HANDBOOK OF
PRINCIPLES AND
PRACTICES
Engineering, law, health care, architecture
and design, transportation,
government administration—each in
its own way is concerned with the
control and elimination of noise pollution
from the environment.
This handbook provides a basic guide
for preparing, enforcing, and meeting
noise control requirements. General
enough to contain all the essentials of
noise control, it is sufficiently detailed
to meet specialized needs in areas
such as aircraft noise reduction and
housing insulation. You need no prior
knowledge of the noise control field for
a full understanding of this material.
Each chapter is written by a recognized
expert and concentrates on a
particular aspect of noise abatment.
The first sections focus on a basic
explanation of sound and noise. Here
you will discover the theoretical basis
for the commonly used measuring
techniques, as well as how to judge
which instrumentation is best suited to
your particular needs and situation.
Practical applications of the important
and widely used Equivalent Sound
Level system of measuring noise are
thoroughly explained.
Using common industrial and construction
situations, the book demonstrates
the basic principles of noise
control and acoustical treatment in the
conservation of human hearing. This
coverage includes necessary technical
formulas, advance design methods,
and explanations of sound test codes
and legislation.
There is a full discussion of both sides
of the airport'aircraft noise controversy.
The authors examine the measurement
of noise levels, legislative and
regulatory efforts to keep these levels
with:n safe limits, and the impact of
lonj terrfi exposure to noise on the
human population.
The Handbook deals in realistic teims
with the problems of vehicular engine
and tire noise levels. And vou will find a
complete section on noise leveis In tn«
home—how they can adversely effect
people and how to design and insulate
against them.
In addition, the authors fully explain
how to go about writing an acceptable
Environmental Impact Statement. You
learn how to write, word and properly
define the limits in noise control
ordinances.
To round out the comprehensive
coverage, you also find a thorough
evaluation of the noise levels of recreational
activities and vehicles, such as
power boats, off-road motorcycles and
snowmobiles.
Whether you are a layman concerned
with the ecological impact of noise or
an engineer concerned with machine
design, Noise Control will serve as
your basic reference to today's critical
problems in noise reduction and abatmer.
l.
14 citations