ACOUSTIC BREAKOUT NOISE FROM NON-CIRCULAR MUFFLER SHELLS.
| Author | : SH GOWTHAM GUDIMELLA. |
| Publisher | : |
| Total Pages | : |
| Release | : |
| Genre | : |
| ISBN | : 9788193278475 |
Download ACOUSTIC BREAKOUT NOISE FROM NON-CIRCULAR MUFFLER SHELLS. Book in PDF, ePub and Kindle
Acoustic Breakout Noise From Non Circular Muffler Shells PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Acoustic Breakout Noise From Non Circular Muffler Shells PDF full book. Access full book title Acoustic Breakout Noise From Non Circular Muffler Shells.
Acoustic Breakout Noise From Non-Circular Muffler Shells
| Author | : SH Gowtham Gudimella |
| Publisher | : CSMFL Publications |
| Total Pages | : 111 |
| Release | : 2018-04-02 |
| Genre | : Technology & Engineering |
| ISBN | : 8193278461 |
Download Acoustic Breakout Noise From Non-Circular Muffler Shells Book in PDF, ePub and Kindle
A theoretical treatment of sound transmission through the walls of non-circular muffler shell is done for plane mode transmission within the muffler shell. Non-circular muffler shells include distorted circular (due to the welding seam), elliptical (oval) and flat-oval shells. An analytical formulation has been developed in this thesis in order to predict the breakout noise with the acoustical and structural wave coupling phenomena. First, progressive wave model is chosen. Then, the Transverse Transmission Loss (TTL) is predicted at different frequencies of interest. This formulation is extended to the standing wave model by which results for anechoic, rigid end and open end boundary conditions are obtained. Transverse transmission loss (TTL) predicted, based on the analytical model, is compared and validated with computational results using a commercial 3-D numerical simulation (vibro-acoustic) software package like SYSNOISE. Same model is used for non-circular shell with flat-oval configuration. And also breakout noise obtained from different configurations like circular, elliptical, flat-oval, rectangular and square, all having the same equivalent radius, are compared. Finally, by incorporating effects of finite length of the muffler and end plates, analytical model has been developed for a circular shell. Parametric studies have been done wherever required to evolve the design guidelines which will be helpful for designers.
Acoustics of Ducts and Mufflers With Application to Exhaust and Ventilation System Design
| Author | : M. L. Munjal |
| Publisher | : John Wiley & Sons |
| Total Pages | : 360 |
| Release | : 1987-05-08 |
| Genre | : Technology & Engineering |
| ISBN | : 9780471847380 |
Download Acoustics of Ducts and Mufflers With Application to Exhaust and Ventilation System Design Book in PDF, ePub and Kindle
An analysis of the major topics in sound suppression and noise control for the analysis and design of acoustical mufflers, air conditioning and ventilation duct work. Both fundamentals and the latest technology are discussed, with an emphasis on applications.
Young Students Learning Library
| Author | : |
| Publisher | : |
| Total Pages | : 140 |
| Release | : 1994 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 9780837498089 |
Download Young Students Learning Library Book in PDF, ePub and Kindle
Architectural Acoustics
| Author | : Marshall Long |
| Publisher | : Academic Press |
| Total Pages | : 984 |
| Release | : 2014-02-05 |
| Genre | : Technology & Engineering |
| ISBN | : 0123982650 |
Download Architectural Acoustics Book in PDF, ePub and Kindle
Architectural Acoustics, Second Edition presents a thorough technical overview of the discipline, from basic concepts to specific design advice. Beginning with a brief history, it reviews the fundamentals of acoustics, human perception and reaction to sound, acoustic noise measurements, noise metrics, and environmental noise characterization. In-depth treatment is given to the theoretical principles and practical applications of wave acoustics, sound transmission, vibration and vibration isolation, and noise transmission in floors and mechanical systems. Chapters on specific design problems demonstrate how to apply the theory, including treatment of multifamily dwellings, office buildings, rooms for speech, rooms for music, multipurpose rooms, auditoriums, sanctuaries, studios, listening rooms, and the design of sound reinforcement systems. Detailed figures illustrate the practical applications of acoustic principles, showing how to implement design ideas in actual structures. This compendium of theoretical and practical design information brings the relevant concepts, equations, techniques, and specific design problems together in one place, including both fundamentals and more advanced material. Practicing engineers will find it an invaluable reference for their daily work, while advanced students will appreciate its rigorous treatment of the basic building blocks of acoustical theory. Considered the most complete resource in the field – includes basic fundamental relations, derived from first principles, and examples needed to solve real engineering problems. Provides a well-organized text for students first approaching the subject as well as a reliable reference for experienced practitioners looking to refresh their technical knowledge base. New content for developing professionals includes case studies and coverage of specific focus areas such as audio visual design, theaters, and concert halls.
Noise and Environment
| Author | : Daniela Siano |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 174 |
| Release | : 2021-02-03 |
| Genre | : Technology & Engineering |
| ISBN | : 1839682396 |
Download Noise and Environment Book in PDF, ePub and Kindle
Noise pollution is one of the factors that affect the quality of life of the general population, especially in urban areas, where the noise levels are often high due to the presence of numerous sources, such as transport infrastructures, activities production and commercial areas, entertainment venues and other sound sources which, although temporary, such as construction sites and outdoor music events, affect general noise levels. Even if noise is one of the oldest pollutants referred to in history, for years, the problem of noise pollution has been often considered less important than others related to the environment, such as air pollution, water pollution, and waste management.The regulations in force to contain the noise have become increasingly stringent as each individual is constantly exposed to noise and often the noise is treated just as a scourge of modern society. Making noise is becoming easier and cheaper each day, but just the opposite for controlling it. Deeper studies are needed to understand the core of current noise problems; new materials and techniques are needed to control them. This book is a combination of theory and practice based on the latest research. The studies in this book range from evaluation methods for the perception of noise and outline forecast criteria that can be integrated with applications for acoustic mapping as well as the use of innovative techniques and materials for its abatement. The main purpose of this book, organized in 8 chapters, is to provide an overview of the recent studies in this field and the applications in different research studies. The authors, contributing to the success of this book, provide a series of practical applications of their recent studies aimed at the reduction of noise in different environments. The editors would like to thank all the authors who, through their studies and research, have accepted our invitation to share recent discoveries in this field with the scientific community.
Acoustics of Ducts and Mufflers
| Author | : M. L. Munjal |
| Publisher | : John Wiley & Sons |
| Total Pages | : 379 |
| Release | : 2014-02-04 |
| Genre | : Technology & Engineering |
| ISBN | : 1118443098 |
Download Acoustics of Ducts and Mufflers Book in PDF, ePub and Kindle
Fully updated second edition of the premier reference book on muffler and lined duct acoustical performance Engine exhaust noise pollutes the street environment and ventilation fan noise enters dwellings along with fresh air. People have become conscious of their working environment. Governments of most countries have responded to popular demand with mandatory restrictions on sound emitted by automotive engines, and a thorough knowledge of acoustics of ducts and mufflers is needed for the design of efficient muffler configurations. This fully updated Second Edition of Acoustics of Ducts and Mufflers deals with propagation, reflection and dissipation/absorption of sound along ducts/pipes/tubes, area discontinuities, perforated elements and absorptive linings that constitute the present-day mufflers and silencers designed to control noise of exhaust and intake systems of automotive engines, diesel-generator sets, compressors and HVAC systems. It includes equations, figures, tables, references, and solved examples and unsolved exercises with answers, so it can be used as a text book as well as a reference book. It also offers a complete presentation and analysis of the major topics in sound suppression and noise control for the analysis and design of acoustical mufflers, air conditioning and ventilation duct work. Both the fundamentals and the latest technology are discussed, with an emphasis on applications. Deals with reactive mufflers, dissipative silencers, the frequency-domain approach, and the time-domain approach. Fully updated second edition of the premier reference book on muffler and lined duct acoustical performance, in one complete volume Presents original new research on topics including baffle silencers and louvers, 3D analytical techniques, and flow-acoustic analysis of multiply-connected perforated-element mufflers Includes a general design procedure to help muffler designers in the automotive industry, exhaust noise being a major component of automobile and traffic noise pollution Written by an expert with four decades’ experience in teaching to graduate students, publishing extensively in reputed international journals, and consulting with industry for noise control as well as designing for quietness
Development of Innovative Pedagogical Practices for a Modern Learning Experience
| Author | : Dr. Dennis Koyama |
| Publisher | : CSMFL Publications |
| Total Pages | : 358 |
| Release | : 2021-12-20 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 8194848369 |
Download Development of Innovative Pedagogical Practices for a Modern Learning Experience Book in PDF, ePub and Kindle
In the current volume, the selected studies have been grouped into three thematic sections, presenting readers with a set of distinct but related research on meaningful issues for a modern learning experience. The first three chapters present professional and teacher development perspectives and collectively shed light on how to develop, maintain, and improve pre and in-service teacher training and professional development. The second set of four chapters provide research findings that describe the results of direct applications of modern learning elements through course assignments and teaching approaches. The final five chapters focus on critical thinking and range in their focus from classroom-based studies to full-scale curriculum reform. The collection of chapters presented in this volume represents the eclectic nature of modern learning experiences and demonstrate its applicability across educational contexts and disciplines. The chapters resonate with other educational researchers in search of novel ways of creating, facilitating, and investigating modern learning experiences.
Architectural Acoustics Illustrated
| Author | : Michael Ermann |
| Publisher | : John Wiley & Sons |
| Total Pages | : 272 |
| Release | : 2015-01-16 |
| Genre | : Architecture |
| ISBN | : 1118986903 |
Download Architectural Acoustics Illustrated Book in PDF, ePub and Kindle
Unite the science of sound and the principles of design toenhance any space Architectural Acoustics Illustrated translates thequantitative and qualitative content of acoustics into the graphiclanguage of architecture. This highly-visual guide includes over350 illustrations that outline the physics of sound and the bestdesign practices for limiting or mitigating noise in buildings byusing the latest in materials and techniques. Each chapter includesa summary checklist of design guidelines to help prevent mistakesand oversights, and the Instructor's website offers videoanimations demonstrating acoustical concepts. Designed as a "firstlook" at the interaction of sound and space, the book explains theprinciples of architectural acoustics and their practicalapplications, providing a comprehensive guide for designing withacoustics in mind. Architectural acoustics is more than just concert halls –it may determine building placement, division of interior space,exterior construction, and even siting. When addressed early in thedesign process, the resulting space can be free of unwanted soundand promote good hearing; if left unaddressed, the problems withthe space can lead to lawsuits and costly post-constructionremediation. Architectural Acoustics Illustrated helpsdesigners solve most acoustical problems in advance, by enablingreaders to: Understand the physical science underlying the behavior ofsound Consider the interactions of sound and space in the initialdesign approach Mitigate building sounds such as those produced by HVAC andplumbing with early design planning Design spaces for listening, and incorporate acoustics bestpractices into every plan The highly visual format of the book helps readers grasp complexconcepts quickly, and thorough discussion of each concept'sreal-world application ties the science directly into the designprocess. All design professionals need to have a fundamentalunderstanding of acoustics, and Architectural AcousticsIllustrated is a comprehensive, practical guide in aneasy-to-read format.
Noise and Vibration Control
| Author | : Leo Leroy Beranek |
| Publisher | : McGraw-Hill Companies |
| Total Pages | : 680 |
| Release | : 1971 |
| Genre | : Science |
| ISBN | : |
Download Noise and Vibration Control Book in PDF, ePub and Kindle
