Download or read book Numerical Analysis of the Elastic Shock Response of Submarine Installed Equipment written by Mark Steven Welch and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motivated by a lack of explosive test data on nuclear submarines, the Navy has sought other means to qualify installed equipment in submarine environments. The currently used method for non-shock testable items is the Dynamic Design Analysis Method (DDAM) developed by the Naval Research Laboratory in the early 1960's. With the advent of large-scale computing power, newer numerical methods have become available to predict equipment responses. This thesis is a comparative study of DDAM and ELSHOK (Elastic Shock); a new generation numerical shock response code. The limitations and strong points of both methods are examined using illustrative examples. Additional keywords: Finite element analysis; Finite difference theory; Elastic shock response; Explosive shock response; COmputer program documentation; User manuals; Mathematical models.
Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1984 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Parametric Study of Elastic Response of Submarine Installed Equipment Subjected to UNDEX Underwater Explosion Side On Loading written by Gerald Francis DeConto and published by . This book was released on 1986 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is desirable to perform a study of the elastic responses of submarine hulls and internally attached structures to underwater shock loading. In view of the expense and possible involvement of non-shock testable equipment it is not always desirable to perform actual shock tests utilizing real hulls or SSTV's (Submerged Shock Test Vehicles). With the advent of large scale computing power, numerical methods now exist to predict equipment/hull responses. The ELSHOK (ELASTIC SHOCK) computer code is used to perform a parametric study on a submerged shell with an internally attached substructure. Of particular interest is the phenomenon of dynamic amplification or lack of such in the response of this particular substructure and effects on substructure shell interaction due to varying substructure mass and stiffness subjected to underwater explosion side-on shock loading.
Download or read book A Parametric Study of Elastic Responses of Submarine Installed Equipment When Subjected to Undex End on Loading written by Stephen Allen Weinhardt and published by . This book was released on 1986 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the lack of longitudinal stiffening along submarine hulls, they are inherently vulnerable to underwater explosions directly off the bow or stern. Accordion-like deformations of the hull are set into motion which could cause dynamic amplification in the transient response of attached substructures. In underwater shock acceptance tests of internal equipment, this interaction is created by exploding a charge in a fore and aft configuration with the submerged shock test vehicle (SSTV). With the increasing availability of large computers and the rapid development of numerical methods, several computer codes have been written to predict equipment response to underwater shocks. Using the ELSHOK (ELASTIC SHOCK) code, this thesis investigates the effect of hull/substructure interaction on stiffened shell response at resonance following an end-on load. The transient response of the coupled shell/substructure system from tapered and conventional charges of equivalent impulse is examined in this study. Keywords: End-on shock loads.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, SIld disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna and broader dissemination. tional publishing house to assure improved service Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 30 (thesis year 1985) a total of 12,400 theses titles from 26 Canadian and 186 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book References to Contemporary Papers on Acoustics written by Frederick E. White and published by . This book was released on 1986 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Advancement of Optical Methods in Experimental Mechanics Volume 3 written by Helena Jin and published by Springer. This book was released on 2015-11-17 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advancement of Optical Methods in Experimental Mechanics, Volume 3 of the Proceedings of the 2015SEM Annual Conference& Exposition on Experimental and Applied Mechanics, the third volume of nine from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of optical methods ranging from traditional photoelasticity and interferometry to more recent DIC and DVC techniques, and includes papers in the following general technical research areas: Advanced optical interferometry Developments in Image correlation (Digital &Volumetric ) Full Field Methods Novel Optical Methods for Stress/Strain Analysis Advances in Optical Methods
Download or read book Maritime Information Review written by and published by . This book was released on 1993 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1976 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
