Download or read book Vibrations of Complete Spherical Shells with Imperfections written by and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous theoretical investigations on the natural frequencies for complete spherical shells have been reported over the past four decades. However, attempts at correlating the theoretical results with either experimental or simulated results (both for axisymmetric and non-axisymmetric modes of vibration) are almost completely lacking. In this paper, natural frequencies and mode shapes obtained from axisymmetric and nonaxisymmetric theories of vibration of complete spherical shells and from Finite Element computer simulations of the vibrations, with and without geometrical imperfections, are presented. Modal tests reported elsewhere on commercially available, thin spherical marine floats (with imperfections) are utilized as a basis for comparison of frequencies to both the theoretical and numerical results. In addition, comparisons with 'whole field' measurements on one of the imperfect shells using dynamic holography are presented. Because of the imperfections present, 'splitting' of frequencies of non-axisymmetric modes is anticipated. Correlations of recorded natural frequencies of the spherical shells with earlier theoretical results and with finite element simulations for the first few modes are good, and the presence of the frequency splitting phenomenon is demonstrated.

Download or read book Vibration of Shells written by Arthur W. Leissa and published by . This book was released on 1973 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Vibration of Shells written by Arthur W. Leissa and published by . This book was released on 1973 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibration of Laminated Shells and Plates written by Mohamad Subhi Qatu and published by Elsevier. This book was released on 2004-02-16 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrations drive many engineering designs in today's engineering environment. There has been an enormous amount of research into this area of research over the last decade. This book documents some of the latest research in the field of vibration of composite shells and plates filling a much-needed gap in the market. Laminated composite shells have many engineering applications including aerospace, mechanical, marine and automotive engineering. This book makes an ideal reference for researchers and practicing engineers alike. - The first book of its kind - Documents 10 years of research in the field of composite shells - Many Engineering applications

Download or read book Influence of Initial Geometric Imperfections on Vibrations of Thin Circular Cylindrical Shells written by Lakshman Watawala and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book On Vibrations of Elastic Spherical Shells written by Paul Mansour Naghdi and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Vibrations of Shallow Spherical Shells written by W. H. Hoppmann (II) and published by . This book was released on 1963 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thin Plates and Shells written by Eduard Ventsel and published by CRC Press. This book was released on 2001-08-24 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting recent principles of thin plate and shell theories, this book emphasizes novel analytical and numerical methods for solving linear and nonlinear plate and shell dilemmas, new theories for the design and analysis of thin plate-shell structures, and real-world numerical solutions, mechanics, and plate and shell models for engineering appli

Download or read book Axisymmetrical Vibrations of Underwater Spherical Shells written by Tzu Chuen Huang and published by . This book was released on 1971 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Influence of Geometric Imperfections on the Free Vibrations of Thin Cylindrical Shells written by Shrikant T. Bhat and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibrations of Spherical Shells in Water written by Feng-chi Chen and published by . This book was released on 1970 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibrations of Shells and Plates written by Werner Soedel and published by . This book was released on 1981 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Engineering Materials Structures and Systems Innovations Mechanics and Applications written by Alphose Zingoni and published by CRC Press. This book was released on 2019-08-21 with total page 2435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications comprises 411 papers that were presented at SEMC 2019, the Seventh International Conference on Structural Engineering, Mechanics and Computation, held in Cape Town, South Africa, from 2 to 4 September 2019. The subject matter reflects the broad scope of SEMC conferences, and covers a wide variety of engineering materials (both traditional and innovative) and many types of structures. The many topics featured in these Proceedings can be classified into six broad categories that deal with: (i) the mechanics of materials and fluids (elasticity, plasticity, flow through porous media, fluid dynamics, fracture, fatigue, damage, delamination, corrosion, bond, creep, shrinkage, etc); (ii) the mechanics of structures and systems (structural dynamics, vibration, seismic response, soil-structure interaction, fluid-structure interaction, response to blast and impact, response to fire, structural stability, buckling, collapse behaviour); (iii) the numerical modelling and experimental testing of materials and structures (numerical methods, simulation techniques, multi-scale modelling, computational modelling, laboratory testing, field testing, experimental measurements); (iv) innovations and special structures (nanostructures, adaptive structures, smart structures, composite structures, bio-inspired structures, shell structures, membranes, space structures, lightweight structures, long-span structures, tall buildings, wind turbines, etc); (v) design in traditional engineering materials (steel, concrete, steel-concrete composite, aluminium, masonry, timber, glass); (vi) the process of structural engineering (conceptualisation, planning, analysis, design, optimization, construction, assembly, manufacture, testing, maintenance, monitoring, assessment, repair, strengthening, retrofitting, decommissioning). The SEMC 2019 Proceedings will be of interest to civil, structural, mechanical, marine and aerospace engineers. Researchers, developers, practitioners and academics in these disciplines will find them useful. Two versions of the papers are available. Short versions, intended to be concise but self-contained summaries of the full papers, are in this printed book. The full versions of the papers are in the e-book.

Download or read book Thermoelastic Vibrations of Spherical Shells written by Tien-fang Chen and published by . This book was released on 1974 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Initial Geometric Imperfections on Umdamped Vibrations of Thin Circular Cylindrical Shells written by D. K. Liu and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Axisymmetric Initial Imperfections on the Vibrations of Cylindrical Shells Under Axial Compression written by Aviv Rosen and published by . This book was released on 1973 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vibrations of a cylindrical shell with an axisymmetric initial imperfection and axial preload are studied. Small asymmetric harmonic vibrations are superposed on the basic static axisymmetric equilibrium and the frequency of these vibrations is evaluated. The analysis is based on the nonlinear equations of shallow shell theory, and follows closely an earlier stability investigation by Koiter. The study is restricted to initial imperfections similar to an axisymmetric buckling mode of a perfect cylindrical shell and represents a first approximation only. Such imperfections exhibit a strong influence on the frequency of the vibrations. The possible implications of this effect are discussed. (Author).