This document discusses sound insulation in buildings. It defines noise and describes how noise is transmitted through air, building structures, and structural members. It differentiates between sound insulation and sound absorption. Acceptable noise levels are outlined for different building types like hospitals, classrooms, and residences. Construction methods for sound insulation are described, including walls, floors, windows, doors, and machine mounting. Walls can be made of rigid, porous, or double materials. Floors can use resilient surfaces or floating constructions. Windows and doors work best when air tight. Proper placement of buildings and isolation of noise sources are also important for sound insulation.
Notes for Architecture 4th Year subject Services. The topic is about Acoustic, how does it work for different places, how we can treat spaces according to acoustic and for better acoustic
All you need to know about timber in just a single ppt with interesting slides. Hope it hlps! This ppt was created as the result of a teamwork with my classmates
The property of surface by which sound energy (kinetic energy) is converted into other form of energy, generally heat energy (due to friction) and get absorbed.
There is no royal road for making a particular room acoustically good. It mainly depends on the ideas of the engineer or the Architect. Each case is to be studied separately and after proper thinking and calculations, suitable materials may be specified.
“a science that deals with the production, control, transmission, reception, and effects of sound.”
it is the science of controlling sound within buildings.
Notes for Architecture 4th Year subject Services. The topic is about Acoustic, how does it work for different places, how we can treat spaces according to acoustic and for better acoustic
All you need to know about timber in just a single ppt with interesting slides. Hope it hlps! This ppt was created as the result of a teamwork with my classmates
The property of surface by which sound energy (kinetic energy) is converted into other form of energy, generally heat energy (due to friction) and get absorbed.
There is no royal road for making a particular room acoustically good. It mainly depends on the ideas of the engineer or the Architect. Each case is to be studied separately and after proper thinking and calculations, suitable materials may be specified.
“a science that deals with the production, control, transmission, reception, and effects of sound.”
it is the science of controlling sound within buildings.
Different types of insulation materialsinsulation4us
A crawl space installed under the house can make the home colder in the winter than a house built on a concrete slab. Mold and mildew are the common problems in a crawl space, so you need to guard your home against that as well. In order to keep the floors warmer and prevent mold and mildew from growing in the crawl space, requires installation of crawl space insulation. The insulation seals out drafts and prevents warm air from escaping out through the space. It is an efficient way to deal with the part of the house that is prone to dampness.
Konsultasi Noise Control Pada Park Royal - Bogor, bertujuan untuk mengurangi kebisingan ruangan pada saa berpidato. Tingkat kebisingan di ukur untuk mengetahui nilai kebisingan ruangan tersebut agar bisa ditentukan solusi yang tepat untuk mengurangi kebisingannya.
UK Sound Testing and Sound Insulation Test is carried out to demonstrate compliance with Building Regulations. Southern Assessors Specialize in accredited engineers to carry out airborne and impact sound insulation test in London.
The proposed materials are intended to be light structures, recyclable or degradable and with high noise reduction efficiency, being proper in buildings structures, noise barrier structures and automotive components.
Key words: acoustic, composite, noise control, absorption, Kundt’s tube, noise barriers
Module-1-(Building Acoustics) Noise Control (Unit-3). pdfManish Kumar
ARCHITECTURAL SERVICES – V (ACOUSTICS) (RAR – 806)
MODULE-1 – BUILDING ACOUSTICS
(NOISE CONTROL) Presented by Ar. Manish Kumar, Assistant Professor in Architecture Department at Axis Institute of Architecture
Factors affecting acoustics of buildings and their remedies.Burhanuddin Kapadia
Acoustics plays an important role in the sound ergonomics
due to which sound can be distributed equally to entire hall.
the following slide gives an overview of the factors of acoustics and its remedies.
This study assesses sound performance at
building front façades as well as types of design configuration
of the self-protected building envelops which are often exposed
to a linear finite-length sound source (e.g. traffic noise).
Impacts of noise attenuation at the surface level of the building
façade are also dealt with. The study includes an evaluation of
the architectural elements shaping the configuration of the
façade as a means of self-protection for noise attenuation
against traffic noise whereby the architects and engineers have
neither the choice of averting such disturbing sources nor using
natural buffers or man-made barriers to shelter buildings
aligned at main streets. A theoretical background is rendered
so as to clarify the concept of self-protected building envelops
and their role in the traffic noise attenuation. Computer
simulation of mathematical models are also applied to test the
effect of the facade design, articulation and configuration of
envelop on noise attenuation. However, design alternatives of
simulated different front façades facing traffic noise are
analyzed as case studies. This study concludes with some useful
findings depicting the relationship between envelop
configuration and noise attenuation in order to make the
building more self-protected. A few general considerations are
added at the end of the paper.
This insulation material have speciality to obserb sound and control Temperature.
This PPT also includes Installation process and specification of Quiet batt30°
Noise is unwanted sound. It can cause hearing loss, disturb communication or cause nuisance.
Noise control is a set of strategies to reduce noise pollution or to reduce impact , whether outdoors or indoors.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
2. CONTENT
• General discussion on effects of sound
• Types of Noise
• Transmission of noise
• Sound Insulation vs. Sound Absorption
• Transmission loss
• Maximum noise levels
• Means of noise control and sound
insulation.
3. GENERAL DISCUSSION ON EFFECTS OF
SOUND
High noise conditions not only result in
uncomfortable living conditions, fatigue,
inefficiency and mental strain, but prolonged
exposure to such conditions may cause
temporary deafness or nervous break-downs.
Sound-proofing is absolutely essential in case of
film studios, radio-broadcasting stations,
television stations, sound recording studios etc.
The insulation of noises is important for office
buildings , hospitals , educational institute ,
hotels etc.
4. Though it is difficult to prevent the outdoor noises
coming into the building but acceptable indoor
noise levels can be achieved by adequate
planning of building and its components and by
suitable constructional measures using
insulating materials.
5. TYPES OF NOISE
‘Noise’ is defined as unwanted sound. Noises
from their origin point of view are of the
following two types:
1. Outdoor Noises.
2. Indoor Noises.
1. Outdoor Noises: These noises have their
source of origin outside the room or building,
such as rood traffic, railways, aero-planes,
lifts, loud speakers, moving machinery in the
neighborhood or in adjacent buildings.
6. 2. Indoor Noises: These noises have their
source of origin inside the room or building, such
as conversation of the occupants, foot steps,
banging of doors, shifting of furniture, in water
closets, working of typewriters, playing of radios,
gramophones etc.
7. Another Classifications: From the viewpoint of the
analysis of sound insulation problems, the
noises are again classified into two types:
1. Air-borne Noises or Sounds.
2. Structure-borne Noises or Impact Noises or
Sounds.
1. Air-borne Noises or Sounds: It is
generated in the air and is transmitted through
the air directly to the human ear. This types of
sound travels one part to another through small
gapes or openings or by vibrating the partition
walls or doors.
8. 2. Structure-borne Noises or Sounds:
They are originate and progress in the building
structure. It is caused by impact and transmitted
as air-borne noises.
9. TRANSMISSION OF NOISE
The noise is transmitted in the following 3 ways.
1. Through the air.
2. By the vibration of Structural Members.
3. Through the Structural Members.
The 1st
type of noise transmission, being common is
important.
The 2nd
type becomes prominent only when the
enclosing walls, floors, ceilings etc. are of thin
construction.
The 3rd
type is prevalent where mechanical vibrations
are caused, particularly in case of factories, work
shops, public buildings, offices etc.
10. SOUND INSULATION vs. SOUND
ABSORPTION
The distinct function of sound absorption is the
prevention of reflection of sound waves where
as the function of sound insulation is the
prevention of transmission of sound, may be by
any means. Sound insulation is used to indicate
the reduction obtained when sound passes from
one room to another room or from one side of
partition to the other side.
Porous materials, which are generally good sound
absorbents, are poor sound insulators and vice
versa.
11. TRANSMISSION LOSS
During transmission of air-borne sound from the
source to the recipient; a reduction in the sound
intensity takes place and this is termed as
‘Transmission Loss’. This transmission loss is
numerically equivalent to the loss in the intensity
of sound expressed in decibels (i.e., dB).
The following facts regarding transmissions loss
require special attention:
1. The efficiency of sound insulation of any
barrier, such as partition, wall, floor etc. is
expressed in terms of the transmission loss of
air-borne sound
12. that occurs while the sound is being transmitted
through the barrier.
2. The transmission loss or sound insulation
offered by a structure depends upon the
materials used and the method of construction
employed.
3. Transmission loss varies directly with the
frequency of sound.
4. Higher sound insulation of a barrier is indicated
by the larger transmission loss.
13. MAXIMUM ACCEPTABLE NOISE LEVELS
The maximum level of noise which will neither
annoy the occupants nor damage the acoustics
of the building is termed as acceptable noise
level inside the building.
Some maximum Acceptable noise levels:
Hospitals – 40-50 dB.
Class rooms or lecture rooms - 45-50 dB.
Residential buildings – 45-55 dB.
Factories – 60-65dB. etc.
14. MEANS OF NOISE CONTROL AND
SOUND INSULATION
It have been laid by the Indian Standard (Is: 1952-
1962) for various types of buildings.
Some example of sound insulation between
individual rooms:
Between houses or flats: 40 dB.
Between one room and another in the same house
or flat: 30 dB.
Between lecture rooms: 40 dB.
Between 2 wards in hospital: 30 dB . etc.
15. The study of noise control and sound insulation can
be further divided in the following heads:
1. General consideration.
2. Constructional measures of noise control and
sound insulation.
3. Practical hints and conclusions.
1. General consideration: The following
general considerations should be made for
noise control and should insulation in buildings.
1. The 1st
and foremost way of insulating against
air-borne noise is to isolate it at source. Air tight
16. rooms for machinery would achieve this purpose to
some extent. Working methods, which create
less noise, can be adopted.
2. The residential buildings should be properly
located in a quite area away from the noisy
surroundings. The building should be properly
oriented with respect to the road and it should
be such that doors and windows do not face
the source of noise.
3. The different units of a building should be
properly planned.
17. 4. The provision of furnishing material and lining
of walls and ceilings by means of air-filled
materials, helps to reduce the noise to a great
extent.
5. The transmission of noise by vibrations can be
prevented by making the walls, floors, partitions
very rigid and massive or heavy.
6. The control of impact sound to some extent is
possible by either providing resilient materials
or to carry the whole floor surface on resilient
materials.
7. Structure-borne noise or sounds can be
prevented
18. Constructional Measures of Noise
Control and Sound Insulation
by introducing discontinuities in the path of
vibrating waves and by using sound absorbing
materials.
8. The personal protective devices, such as
earplugs, head-phones etc can be used to
reduce the noise to the extent of 20 to 30 dB.
1. Walls and partitions.
2. Floors and ceilings.
19. 3. Windows and doors.
4. Insulating sanitary fillings.
5. Machine mounting or insulations of machinery.
1. Walls and partitions: these wall
constructions should act as vertical barriers in
the transmission of air borne sound or noise.
To achieve this objective, the following
methods of wall construction can be adopted
depending upon the extent of sound insulation
required:
i. Rigid and Massive Homogeneous Partitions.
ii. Partitions of Porous Materials.
20. 20
A composite Construction employing a
combination of rigid materials and porous
absorbers can be adopted with advantage of
better insulation with lesser unit weight of
partition.
iii. Hollow and Composite Partition Walls or
Double wall Constructions.
2. Floors and Ceilings: The objective of
floors and ceilings construction should be to
offer adequate insulation against impact sound.
The objective can be met by the following
constructional measures.
21. i. Use of Resilient Surface Material on
Floors: By this method, insulation against
impact noises to an extent of 5 to 10dB over a
bare concrete floors can be obtained.
ii. Providing a Floating Floor
Construction: The principle underlying the
construction of a floating floor is its insulation
from any other part of structure.
Floating floor construction can be adopted for both
concrete as well as wooden floor.
22. i. Concrete Floor: It is 5 types.
a. Concrete Floor with Floating Concrete Screed.
b. Concrete Floating Wood Raft.
c. Concrete Floor with Suspended Ceiling and
Soft Floor Finish or Covering.
d. Concrete Floor with Light Weight Concrete
Screed and Soft Floor Finish or covering.
e. Heavy Concrete Floor With a soft Floor Finish
or Covering.
23. ii. Wooden Floors: It has 2 types.
Type 1. when Supporting walls are 10cm thick or
less.
Type 2. When Supporting Walls are 20cm thick or
more.
We can also use of Suspended-ceiling with Air-
space.
3. Windows and Doors: In case of windows,
sound insulations of single windows is
improved by making them as air-tight as
possible by filling the air space at the edges of
such panes with sound absorbing material.
24. In case of doors, the transmission loss or sound
reduction increases with the increase in weight.
4. Insulating Sanitary Fittings: For improved
insulation, water-closets should not be fixed
above a living room or next to a bed room
unless the latter is well-insulated, as for
example by cup-boards etc.
5. Machine Mountings or Insulation of
Machinery: The machines or mechanical
equipments create vibrations is an adjoining
building and are transmitted further away as
structure-borne sound, the machines should be
insulated by resting them
25. on resilient supports or mountings such as steel
springs, rubber, cork etc.
3. Practical Hints and Conclusions:
i. From view point of noise control, when
windows of bed or living rooms face a main
traffic route or a railway line, they should not be
situated less than 30 to 45 m from its near
edge.
ii. The increase in transmission loss or sound
reduction of a solid massive construction is
slow in proportion to the increase in its
thickness.
26. iii. If the material used is of porous and flexible
nature, like hair felt, its sound reduction is
proportional to its thickness.
iv. In double wall or cavity wall construction, an
air-space is generally better than a filling
material.
v. A cavity wall with two leaves having thickness
of 10cm each, has 80% increase in insulation
value as compared to a single brick solid wall
of 20cm thickness without any increase in
weight but with a little increase in cost.
27. VI. Smaller and solid glass panes have better
insulation property as compared to larger and
thicker flexible glass panes.
VII.Double glazing of glass windows improves
insulation to a considerable degree.
VIII.Sealed double windows or triple windows of
plate glass with an air-space in between can
be successfully used where sound-proofing is
desired.
IX. A steel plate door is more efficient for sound
insulation than a double wall, hollow cold
storage
28. type door.
X. The desired sound insulation or sound
reduction can be achieved in any one or more
of the following 3 ways:
a. By adopting continuous construction by using
homogeneous materials where sound
reduction depends upon the weight per square
meter.
b. By adopting semi-discontinuous construction
where air-cavities are employed with cross-
connection between the two partitions. These
29. cross-connections should be few in number and
preferably made of flexible material.
c. By adopting a fully discontinuous construction
where there is complete discontinuity in the
structure by means of an air cavity or an elastic
acoustic materials. This method is considered
suitable for meeting the requirements of sound
insulation of the highest order within the
reasonable weight per square metre.