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EBookClubs

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Book Aeroacoustics of Flight Vehicles

Download or read book Aeroacoustics of Flight Vehicles written by Harvey H. Hubbard and published by . This book was released on 1991 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Scientific and Technical Publications

Download or read book NASA Scientific and Technical Publications written by and published by . This book was released on 1993 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NOISE CON 77

Download or read book NOISE CON 77 written by George C Maling and published by . This book was released on 1977 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Acoustics Technology

Download or read book Acoustics Technology written by Skipwith W. Athey and published by . This book was released on 1970 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: " ... This survey is one of a series of NASA publications that include information of interest to the non-aerospace community. In this survey, the major revival and expansion of acoustic technology that took place in the middle of this century has been reviewed. ... The information in this document is based on a comprehensive examination of the literature available on the subject. The reference material is concerned primarily with investigations of the mechanisms by which noise is generated, the propagation of noise by spacecraft boosters, the origin of noise generated by compressors in aircraft turbojet engines, and the subjective effects of noise on humans. Because many of these investigations are still in progress, the extent to which they are treated is limited in some cases. It is hoped, however, that the information presented here will stimulate interest in acoustics and the control of noise, and will guide interested persons to sources of specific information in the literature presently available."--Foreword.

Book NASA Reference Publication

Download or read book NASA Reference Publication written by and published by . This book was released on 1991 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Experimental and Numerical Analysis of Structural Acousticcontrol Interior Noise Reduction

Download or read book Experimental and Numerical Analysis of Structural Acousticcontrol Interior Noise Reduction written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-31 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research results contained in this technical report were performed under the NASA grant entitled "Experimental and Numerical Structural Acoustic Control for Interior Noise Reduction". The report is based essentially on partial progress of the Ph.D. dissertation prepared by Jeffrey S. Bevan under direct guidance of Dr. Chuh Mei. The document presents a finite element formulation and control of sound radiated from cylindrical panels embedded with piezoceramic actuators. The extended MIN6 shallow shell element is fully electrical-structural coupled. A piezoelectric modal actuator participation (PMAP) is defined which indicates the actuator performance to each of the offending modes. Genetic algorithm is also employed to validate the sensor and actuator locations determined by the PMAP criteria. The work was conducted at the Department of Aerospace Engineering, Old Dominion University. Mr. Travis L. Turner, Structural Acoustics Branch, NASA Langley Research Center is the technical monitor.Mei, Chuh and Bevan, Jeffrey S.Langley Research CenterNUMERICAL ANALYSIS; EXPERIMENTATION; NOISE REDUCTION; ACOUSTICS; ACTUATORS; RESEARCH; FINITE ELEMENT METHOD; SHALLOW SHELLS; POSITION (LOCATION); PIEZOELECTRICITY; PIEZOELECTRIC CERAMICS; PANELS; NUMERICAL CONTROL; NOISE (SOUND); CYLINDRICAL BODIES

Book Flow and Noise Control Review and Assessment of Future Directions

Download or read book Flow and Noise Control Review and Assessment of Future Directions written by Russell H. Thomas and published by . This book was released on 2002 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA Technical Paper

Download or read book NASA Technical Paper written by and published by . This book was released on 1982 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: