Interior Noise Prediction Methodology: ATDAC Theory and Validation
Title | Interior Noise Prediction Methodology: ATDAC Theory and Validation PDF eBook |
Author | |
Publisher | |
Pages | 54 |
Release | 1992 |
Genre | |
ISBN |
Interior Noise Prediction Methodology
Title | Interior Noise Prediction Methodology PDF eBook |
Author | National Aeronautics and Space Administration (NASA) |
Publisher | Createspace Independent Publishing Platform |
Pages | 50 |
Release | 2018-07-05 |
Genre | |
ISBN | 9781722316792 |
The Acoustical Theory for Design of Aircraft Cabins (ATDAC) is a computer program developed to predict interior noise levels inside aircraft and to evaluate the effects of different aircraft configurations on the aircraft acoustical environment. The primary motivation for development of this program is the special interior noise problems associated with advanced turboprop (ATP) aircraft where there is a tonal, low frequency noise problem. Prediction of interior noise levels requires knowledge of the energy sources, the transmission paths, and the relationship between the energy variable and the sound pressure level. The energy sources include engine noise, both airborne and structure-borne; turbulent boundary layer noise; and interior noise sources such as air conditioner noise and auxiliary power unit noise. Since propeller and engine noise prediction programs are widely available, they are not included in ATDAC. Airborne engine noise from any prediction or measurement may be input to this program. This report describes the theory and equations implemented in the ATDAC program. Mathur, Gopal P. and Gardner, Bryce K. Unspecified Center NAS1-18037; RTOP 535-03-11-03...
Scientific and Technical Aerospace Reports
Title | Scientific and Technical Aerospace Reports PDF eBook |
Author | |
Publisher | |
Pages | 308 |
Release | 1992 |
Genre | Aeronautics |
ISBN |
NASA SP.
Title | NASA SP. PDF eBook |
Author | |
Publisher | |
Pages | 548 |
Release | 1992 |
Genre | Aeronautics |
ISBN |
Aeronautical Engineering
Title | Aeronautical Engineering PDF eBook |
Author | |
Publisher | |
Pages | 712 |
Release | 1993 |
Genre | Aeronautics |
ISBN |
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Government Reports Announcements & Index
Title | Government Reports Announcements & Index PDF eBook |
Author | |
Publisher | |
Pages | 852 |
Release | 1992-10 |
Genre | Science |
ISBN |
Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 287)
Title | Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 287) PDF eBook |
Author | |
Publisher | |
Pages | 706 |
Release | 1993 |
Genre | |
ISBN |