Advanced nacelle acoustic lining concepts development

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National Aeronautics and Space Administration, Langley Research Center, For sale by the National Technical Information Service , Hampton, Va, [Springfield, Va
Linings., Nacelles., Ducted fans., Shrouded propellers., Imped
StatementG. Bielak ... [et al.].
Series[NASA contractor report] -- NASA/CR-2002-211672., NASA contractor report -- NASA CR-211672.
ContributionsBielak, G., Langley Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL16125390M

Advanced Nacelle Acoustic Lining Concepts Development. of slots on the measured attenuation characteristic for typical nacelle liner configurations, with a view to establishing some design.

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The objective of Task 4 of the NASA AST contract, "Advanced Nacelle Acoustic Lining Concepts," is to develop technical knowledge and design concepts for advanced turbofan duct acoustic linings.

This work included subcontracts to BF Goodrich, Hers11 Acoustical Engineering and Virginia Coilsortium of Enginering & Science Universities. Glassdoor gives you an inside look at what it's like to work at Advanced Acoustic Concepts, including salaries, reviews, office photos, and more.

This is the Advanced Acoustic Concepts company profile. All content is posted anonymously by employees working at 5/5(29). Advanced Acoustic Concepts jobs available on Apply to Engineer, Audio Engineer, Senior R&D Engineer and more.

This is the final report of a Conceptual Design Study of Advanced Acoustic-Composite Nacelles which was conducted from June through February, The study was performed under Contract NAS for the NASA-Langley Research Center.

Richard C. Dingeldein was the NASA Project Manager and Mr. Harry Size: 6MB. I have been working at Advanced Acoustic Concepts full-time for more than 5 years Pros Stable place to work, defense company, Friday off every other week, relaxed friendly place, ping pong table, popcorn machine, work is not too stressful, great for people with a family.5/5(29).

Reviews from Advanced Acoustic Concepts employees about Advanced Acoustic Concepts culture, salaries, benefits, work-life balance, management, job security, and more/5(15). This book is a volume in the Core Clinical Concepts in Audiology series.

From the Foreword: "Acoustic Immittance Measures: Basic and Advanced Practice by Lisa Hunter and Navid Shahnaz is a long-overdue update on important test procedures that are applied each and every day in clinical audiology practice.

The book begins with a current review of Cited by: 8. Propulsion technology offers the greatest single contribution to the improvement of cruising economy and the environmental impact of commercial aircraft. The past three generations of gas turbine engines have incorporated increased turbine inlet temperature, increased compressor pressure ratio.

Acoustic monitoring of marine life (e.g., for fishing industry) Oil platform underwater security Gas/oil pipeline anti-tamper and security About the Company Advanced Acoustic Concepts, Inc.

(AAC) is a technical leader of sonar detection, torpedo defense technology, advanced distributed training, knowledge management systems, soft. Advanced Acoustic Concepts, LLC, a joint venture between DRS Technologies and Thales USA, is a technical leader in the fields of sonar systems, sonar signal processing, acoustic training systems, and open architecture system and software integration.

A summary is given of a research program to develop acoustic‐lining technology for engine ducts. The environment to which linings are exposed in the inlet and duct of a typical turbofan engine installation and the noise spectrum to be attenuated are described. Concepts of acoustic linings and their mechanisms for attenuating the propagation of sound in ducts are discussed, with particular Cited by: "The fan which is very large, is one of the primary sources to treat in the engine; so, to do that, we put an acoustic lining in the air intake, as you can see on this A nacelle, the black liner of the nacelle starts here, and goes back as far as the fan.

To treat the fan noise, which normally spreads through the thrust reverser, we have. Advanced Acoustic Concepts is located in Columbia, Maryland. This organization primarily operates in the Transportation Equipment and Supplies business / industry within the Wholesale Trade - Durable Goods sector.

Advanced Acoustic Concepts employs approximately 20 people at this branch location. Development of a Tunable Electromechanical Acoustic Liner for Engine Nacelles Final Report NASA-LaRC Grant # NNL04AA13A (March 4, – Febru ) Michael G.

Jones Mail Stop2 North Dryden Street NASA Langley Research Center Hampton, VA BuildingRoom Structural Acoustics BranchAuthor: Michael G. Jones. Engineering Acoustics is a featured book on Wikibooks because it contains substantial content, it is well-formatted, and the Wikibooks community has decided to feature it on the main page or in other places.

Please continue to improve it and thanks for the great work so. Advanced Acoustic Concepts, LLC (AAC) is became part of a joint venture between DRS Technologies and Thales in AAC is a technical leader in the fields of advanced sonar systems, training.

Foundations of Engineering Acoustics takes the reader on a journey from a qualitative introduction to the physical nature of sound, explained in terms of common experience, to mathematical models and analytical results which underlie the techniques applied by the engineering industry to improve the acoustic performance of their products.

The book is distinguished by extensive descriptions and Cited by: An Introduction to Acoustics S.W. Rienstra & A.

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Hirschberg Eindhoven University of Technology 28 Nov This is an extended and revised edition of IWDE Comments and corrections are gratefully accepted. This file may be used and printed, but for personal or educational purposes only. c S.W. Rienstra & A. Hirschberg fitting of the 40' × 80' tunnel at the Ames Research Center with acoustic lining; development of a low-speed (Mach –), low-disturbance test capability to operate at chord Reynolds numbers in excess of 50 million; and high-lift devices must work in harmony with other advanced concepts such as supersonic laminar flow control that are.

Located in Lemont Furnace, Pa., Advanced Acoustic Concepts Inc. is one of the technical leaders in the fields of advanced sonar, training and knowledge management systems in the United States.

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With an annual income of $50 to million this business employs to associates. Advanced Acoustic Concepts LLC is a public business.

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Advanced Acoustic Concepts LLC is located in Hauppauge, NY. Advanced Acoustic Concepts in Lemont Furnace, PA -- Get driving directions to Eberly Way Lemont Furnace, PA Add reviews and photos for Advanced Acoustic Concepts.

Advanced Acoustic Concepts appears in: Engineers, Acoustical Contractors, Computer Software Wholesale & Manufacturers, Government ContractorsLocation: Eberly Way, Lemont Furnace,PA. GAITHERSBURG, MD--(Marketwire - 01/10/11) - DRS Sonar Systems, LLC, a DRS/Thales joint venture, announced that it has acquired Advanced Acoustic Concepts, Inc.

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