Computer Method For Design Of Acoustic Liners For Turbofan Engines PDF Download
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Author | : Gene Logan Minner |
Publisher | : |
Total Pages | : |
Release | : 1976 |
Genre | : |
ISBN | : |
Download Computer Method for Design of Acoustic Liners for Turbofan Engines Book in PDF, ePub and Kindle
Author | : Gene L. Minner |
Publisher | : |
Total Pages | : 100 |
Release | : 1976 |
Genre | : Acoustical materials |
ISBN | : |
Download Computer method for design of acoustic liners for turbofan engines Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 30 |
Release | : 1979 |
Genre | : Computer programs |
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Download Computer Program Abstracts Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 702 |
Release | : 1976 |
Genre | : Aeronautics |
ISBN | : |
Download NASA Technical Memorandum Book in PDF, ePub and Kindle
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1092 |
Release | : 1977 |
Genre | : Government publications |
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Download Monthly Catalog of United States Government Publications Book in PDF, ePub and Kindle
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author | : |
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Total Pages | : 1166 |
Release | : 1977 |
Genre | : Mechanics, Applied |
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Download Applied Mechanics Reviews Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 1572 |
Release | : 1992 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Author | : Andrew Swanson |
Publisher | : |
Total Pages | : 0 |
Release | : 2023 |
Genre | : |
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Download A Method to Design and Develop Additively Manufactured Aircraft Acoustic Liners Book in PDF, ePub and Kindle
The freeform geometry enabled by additive manufacturing (AM) gives designers many unique capabilities, which has led to novel uses in numerous engineering applications. One emerging use of these freeform AM structures is in aircraft acoustic liners. Modern aircraft have increasingly adopted acoustic liners to reduce the sound emitted by their turbofan engines to meet acoustic emission requirements. Most current acoustic liners take the form of micro-perforated panel (MPP) absorbers. Although traditional MPPs absorb specific tones well, they do not perform as well over a wide range of frequencies. As future aircraft engines start to utilize high-bypass ratios, acoustic liners that can attenuate a wide range of sound frequencies (low-frequencies in particular) with a reduced form factor are needed. Developing a conventional acoustic liner with adequate broadband absorption that also meets size and weight requirements is challenging, expensive, and time-consuming. Therefore, a new integrated design and development method for aircraft acoustic liners is needed to address this barrier. A rapid design and development workflow that uses AM for creating complex novel acoustic liner geometries is presented. This new methodology can help support the development of acoustic liners that are needed for future aircraft engines by allowing the design space to be expanded and explored in ways previously impossible or too expensive to fabricate.
Author | : |
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Total Pages | : 1048 |
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Genre | : Science |
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Download Technical Abstract Bulletin Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 952 |
Release | : 1986 |
Genre | : Technology |
ISBN | : |
Download NASA Tech Briefs Book in PDF, ePub and Kindle