Vibrations On An Infinitely Long Cylindrical Shell In A Semi Infinite Acoustic Medium PDF Download
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Author | : Donald J. Butler |
Publisher | : |
Total Pages | : 72 |
Release | : 1958 |
Genre | : |
ISBN | : |
Download Vibrations on an Infinitely Long Cylindrical Shell in a Semi-infinite Acoustic Medium Book in PDF, ePub and Kindle
Author | : H. H. Bleich |
Publisher | : |
Total Pages | : 52 |
Release | : 1952 |
Genre | : Differential equations |
ISBN | : |
Download Free and Forced Vibrations of an Infinitely Long Cylindrical Shell in an Infinite Acoustic Medium Book in PDF, ePub and Kindle
A method is presented which permits the determination of the frequencies of vibrations of infinitely long thin cylindrical shells in an acoustic medium. Expressions are obtained for the displacements of the shell and for the pressures in the medium in the case of forced vibrations due to sinusoidally distributed radial forces. The results indicate that there is a low-frequency range, where no radiation takes place, and a high-frequency range where the external force provides energy which is radiated. Resonance occurs in the low-frequency range only; in the high-frequency range it is prevented by the damping due to radiation. Free and forced vibrations of steel shells submerged in water are discussed; with limitations, the theory may be applied approximately to stiffened shells. The method requires only a minor modification to account for the effect of static pressure in the surrounding medium. The treatment of transient problems is also considered. If high-frequency terms occur in the force, or shock effects are wanted within a short time after the application of the force, a treatment using solely modes of vibration of the submerged structure would be incomplete, as additional terms occur in the solution. As an alternative approach, the modes of free vibration of the structure may be used as generalized coordinates which fully describe the response of the structure but leave the medium to be treated, by means of the differential equations for the potential or in any other way desired.
Author | : Arthur W. Leissa |
Publisher | : |
Total Pages | : 438 |
Release | : 1973 |
Genre | : Government publications |
ISBN | : |
Download Vibration of Shells Book in PDF, ePub and Kindle
The vibrational characteristics and mechanical properties of shell structures are discussed. The subjects presented are: (1) fundamental equations of thin shell theory, (2) characteristics of thin circular cylindrical shells, (3) complicating effects in circular cylindrical shells, (4) noncircular cylindrical shell properties, (5) characteristics of spherical shells, and (6) solution of three-dimensional equations of motion for cylinders.
Author | : |
Publisher | : |
Total Pages | : 592 |
Release | : 1974 |
Genre | : Mechanics, Applied |
ISBN | : |
Download Applied Mechanics Reviews Book in PDF, ePub and Kindle
Author | : Hua Li |
Publisher | : Elsevier |
Total Pages | : 283 |
Release | : 2005-01-19 |
Genre | : Technology & Engineering |
ISBN | : 0080455697 |
Download Rotating Shell Dynamics Book in PDF, ePub and Kindle
There are numerous engineering applications for high-speed rotating structures which rotate about their symmetric axes. For example, free-flight sub-munition projectiles rotate at high speeds in order to achieve an aerodynamically-stable flight. This is the first book of its kind to provide a comprehensive and systematic description of rotating shell dynamics. It not only provides the basic derivation of the dynamic governing equations for rotating shells, but documents benchmark results for free vibration, critical speed and parametric resonance. It is written in a simple and clear manner making it accessible both the expert and graduate student. The first monograph to provide a detailed description of rotating shell dynamics Dynamic problems such as free vibration and dynamic stability are examined in detail, for basic shells of revolutions
Author | : William A. Nash |
Publisher | : |
Total Pages | : 258 |
Release | : 1989 |
Genre | : Elastic plates and shells |
ISBN | : |
Download Bibliography on Shells and Shell-like Structures (1954-1956) Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1018 |
Release | : 1959 |
Genre | : Science |
ISBN | : |
Download U.S. Government Research Reports Book in PDF, ePub and Kindle
Author | : Anthony E. Armenàkas |
Publisher | : Elsevier |
Total Pages | : 225 |
Release | : 2013-10-22 |
Genre | : Technology & Engineering |
ISBN | : 1483158616 |
Download Free Vibrations of Circular Cylindrical Shells Book in PDF, ePub and Kindle
Free Vibrations of Circular Cylindrical Shells deals with thin-walled structures that undergo dynamic loads application, thereby resulting in some vibrations. Part I discusses the treatment of problems associated with the propagation of plane harmonic waves in a hollow circular cylinder. In such search for solutions, the text employs the framework of the three-dimensional theory of elasticity. The text explains the use of tables of natural frequencies and graphs of representative mode shapes of harmonic elastic waves bounding in an infinitely long isotropic hollow cylinder. The tables are found to be useful as they can be used to check validity and provide estimates of the range of applicability of various shell theories. The purpose of the frequency equation and that of the numerical computations likewise are considered. The book includes a computer program written in the FORTRAN language to show how it is used in the computations, except in cases when H (the thickness of shell) and L (axial half of wavelength) result in extremely small values. Part II consists of related tables and graphs. Physicists, engineers, students, and researchers in advanced sciences will find this book of interest.
Author | : |
Publisher | : |
Total Pages | : 976 |
Release | : 1957 |
Genre | : Hydrodynamics |
ISBN | : |
Download Journal of Ship Research Book in PDF, ePub and Kindle
Author | : Arthur W. Leissa |
Publisher | : |
Total Pages | : 440 |
Release | : 1973 |
Genre | : Shells (Engineering) |
ISBN | : |
Download Vibration of Shells Book in PDF, ePub and Kindle