Negative Effects of Noise and Vibration in Aviation Industry

Running head: RESEARCH METHODS IN ENGINEERING
Research Methods in Engineering
Name of the Student
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Author Note

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RESEARCH METHODS IN ENGINEERING
Table of Contents
Introduction..........................................................................................................................2
Literature Review................................................................................................................2
1. Causes of noise and vibration: Airport Activities........................................................3
2. Negative-effects of noise and vibrations in aviation industry.....................................4
3. Evolution of changes in aviation Industry...................................................................4
4. Present technologies for reducing the noise................................................................5
5. Human against high frequency jet noise and vibration...............................................5
6. Regulations regarding the vibration and noise levels..................................................6
7. The current picture.......................................................................................................7
Conclusion...........................................................................................................................8

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RESEARCH METHODS IN ENGINEERING
Introduction
With the increase in the use of airways in recent years, certain counter effects associated
with the air traffic in aviation industry has increased as well. The most significant one is the
problems faced by people living near the airport. Continuous exposure to the noise might have an
negative effect on health and well being of the people who are exposed to such noises. The
vibrations are often caused by normal operations of aircraft, which includes, take off, landing
and cruising1. During these operations, the vibration and noises are maximum, which affects the
environment. With the present and advanced technologies, it is possible to control and reduce the
negative effects of vibration and noises associated with the aviation industry, which will be
addressed in this literature review. The purpose of the literature review is to understand the
different types of noise and vibrations and its negative effect on human and environment2. The
literature review will be highlighting the regulations which are in place and the preventive
measures that are taken in order to reduce the negative impacts of the vibration and noise
associated with aviation industry.
Literature Review
The noise and the vibrations that are generated from the aircraft industry are considered
to be a significant problem as it impacts the lives of people who live around airports. There are a
number of reasons behind the cause and generation of aircraft noise3. The main sources of noise
and vibration that are generated from aircrafts are aircraft’s engine and the noise generated as a
result of air going over fuselage and wings. The engine noise is caused and generated by the
exhaust and jet behind the engine4. The effect of noise and vibration generated from aircraft is
huge on the people who live near the airport. The purpose of the literature review is to perform

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RESEARCH METHODS IN ENGINEERING
an extensive literature search and analysis of the secondary sources based on the cause and
effects of vibration and noise in aviation industry5. Evaluation of the same is necessary as noise
is considered one of the most detrimental environmental effects associated with aviation. It is
one detrimental environmental effect since it can possibly crease community annoyance.
Therefore, findings ways for reducing the noises and vibration generated is essential.
1. Causes of noise and vibration: Airport Activities
Aircraft vibration during a flight is not at all unusual. The most prominent causes of
vibration include mechanical malfunctioning and atmospheric turbulence. The noises that are
created by the airport activities can be categorised into two categories, based on its operations.
These operations include groundside and airside operations6. Majority of the noises generated
from aviation industries are mainly concerned with the air side operation including landing and
takeoff. These basic operations of airplanes are one of the main reasons behind the generation of
noises and vibration community7. In order to reduce the noise and vibrations, certain preventive
measures are needed to be taken.
The causes and possible sources of noise and vibrations associated with the aircraft are
needed to be identified. High frequency vibration in aircraft is mainly associated with sound
over the aircraft wings, which are mainly caused by ailerons or other wing components.
Aerodynamic vibration can occur as a result of atmospheric turbulence, which is normal.
Normal vibration in aircraft occurs as a consequence of mass distribution and structural
stiffness8. Certain abnormal vibrations in aircraft can be identified as well which can be
identified readily9. This is because this type of noise has a distinct frequency10. Abnormal