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Experimental Determination Of Heave Added Mass And Damping Of Two Dimensional Bulbous Cylinders At The Free Water Surface
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Book Synopsis Experimental Determination of Heave Added Mass and Damping of Two-Dimensional Bulbous Cylinders at the Free Water Surface by : Ralph Stahl
Download or read book Experimental Determination of Heave Added Mass and Damping of Two-Dimensional Bulbous Cylinders at the Free Water Surface written by Ralph Stahl and published by . This book was released on 1978 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental investigations were made on several two-dimensional models to determine the hydrodynamic coefficients of heave motion. The series of cylindrical models representing small waterplane area twin hull configurations were oscillated vertically at the free water surface at various amplitudes. The results, presented in this report, indicate some significant force nonlinearity with amplitude. Both added mass and damping were appreciably affected by cross sectional hull geometry and somewhat by strut thickness. Draft variations least influenced the coefficients of heave motion. (Author).
Book Synopsis Journal of Abstracts by : British Ship Research Association
Download or read book Journal of Abstracts written by British Ship Research Association and published by . This book was released on 1979 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consists largely of abstracts of articles and papers of interest to shipbuilders, ship owners and marine engineers.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pressure Distributions, Added-mass, and Damping Coefficients for Cylinders Oscillating in a Free Surface by : William Robert Porter
Download or read book Pressure Distributions, Added-mass, and Damping Coefficients for Cylinders Oscillating in a Free Surface written by William Robert Porter and published by . This book was released on 1960 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Added mass and damping forces on circular cylinders by : R. A. Skop
Download or read book Added mass and damping forces on circular cylinders written by R. A. Skop and published by . This book was released on 1976 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Added Mass and Damping Coefficients of Heaving Twin Cylinders in a Free Surface by : C. M. Lee
Download or read book Added Mass and Damping Coefficients of Heaving Twin Cylinders in a Free Surface written by C. M. Lee and published by . This book was released on 1971 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A potential flow problem, dealing with twin horizontal cylinders of arbitrary cross sectional forms vertically oscillating in a free surface is investigated. An associated experiment is carried out for four different sets of twin cylinders. The results from the theory and the experiment are compared and are found in good agreement. (Author).
Book Synopsis Experimental Analysis of a two-dimensional captured air bubble by : Susan O. Atkins
Download or read book Experimental Analysis of a two-dimensional captured air bubble written by Susan O. Atkins and published by . This book was released on 1974 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: A prediction of the added mass and damping of a heaving, two-dimensional, captured air bubble, published by Ogilvie in 1969, is verified, within limits, by the experiment discussed in this paper. Only the depth of the lip, relative to the width of the bubble, appears to exert a strong influence on the results.
Book Synopsis Added Mass and Damping Forces on Circular Cylinders by : R. A. Skop
Download or read book Added Mass and Damping Forces on Circular Cylinders written by R. A. Skop and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of experiments to determine the fluid loadings on harmonically oscillating circular cylinders show that the inertial (added mass) component of the loading is in good agreement with the inertial loading predicted by potential flow theory. The results show, however, that the commonly used velocity-squared law for damping is inadequate. In fact, experiments indicate that fluid damping is sensibly viscous (linear) for vibration amplitudes up to 0.8 diameter peak-to-peak and is a combination of viscous and velocity-squared damping at larger amplitudes. This new damping law has important implications for the design of offshore structures. (Author).
Download or read book Index of SNAME Publications written by and published by . This book was released on 1961 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index of SNAME Publications by : Society of Naval Architects and Marine Engineers (U.S.)
Download or read book Index of SNAME Publications written by Society of Naval Architects and Marine Engineers (U.S.) and published by . This book was released on 1986 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Second-order Theory of Oscillating Cylinders by : Roger L. Potash
Download or read book Second-order Theory of Oscillating Cylinders written by Roger L. Potash and published by . This book was released on 1970 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional cylinders of arbitrary shape undergo small-amplitude forced sinusoidal motion in sway, heave and roll in (or near) the free surface of an infinitely deep ideal fluid. Equations for the theoretical fluid response to 'second-order' are derived and their solution formulated in terms of Fredholm integral equations. A numerical procedure is developed and applied to three surface-piercing cylinder sections. Graphs of added mass, damping coefficient, pressure distribution, force and asymptotic wave amplitude as functions of non-dimensional wave number k are presented for the pure motions and for combined sway and heave, sway and roll, and heave and roll. The results indicate the significance of second-order coupling forces which result in the later motion cases. Additionally, second-order response coefficients are shown to be important in the higher frequency range. (Author).
Book Synopsis Measurements of Pressures on a Heaving Prolate Spheroid by : Choung Mook Lee
Download or read book Measurements of Pressures on a Heaving Prolate Spheroid written by Choung Mook Lee and published by . This book was released on 1966 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The damping and added mass coefficients for a shiplike form oscillating at a free surface are usually approximated by a 'strip calculation' in which two-dimensional values for shapes similar to sections of the body are summed over the length. For the three-dimensional body the real section values differ from the local values used in this procedure because of the three-dimensional nature of the real flow caused by body geometry and forward speed. This report presents experimental results which show the magnitude of the three-dimensional effect for a prolate spheroid undergoing forced heaving oscillations while moving longitudinally in calm water. Local hydrodynamic forces on a spheroid model were measured by a number of flush pressure gauges distributed around the girth of the model at several sections. The sectional added mass and damping were than obtained by resolving the integral of pressure at each section into in phase and quadrature components. Total constraint forces were measured and checked against the longitudinally integrated pressure forces. Results were compared with strip computations using two-dimensional cylinder data. In general, the greatest discrepancies were found at the ends of the model. At amidships, measured values agreed quite clsosely with two-dimensional results. At high frequencies, forward speed was found to have small effect on added mass. However, at high frequencies and high forward speed, negative damping was found at some sections. (Author).
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of two-dimensional added mass and damping by : Kolbjoern Johannessen
Download or read book A Study of two-dimensional added mass and damping written by Kolbjoern Johannessen and published by . This book was released on 1974 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of the Added Mass of Cylinders Oscillating Horizontally in a Free Surface by : Chou-chen Wu
Download or read book Experimental Investigation of the Added Mass of Cylinders Oscillating Horizontally in a Free Surface written by Chou-chen Wu and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Added-mass and Damping Coefficient for Cylinders with a Bulb-like Cross-section Oscillating in a Free Surface by : Jean-François Maurice Demanche
Download or read book Added-mass and Damping Coefficient for Cylinders with a Bulb-like Cross-section Oscillating in a Free Surface written by Jean-François Maurice Demanche and published by . This book was released on 1968 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Two-dimensional Added-mass and Damping Coefficients by the Frank Close-fit Method by : Odd M. Faltinsen
Download or read book A Study of the Two-dimensional Added-mass and Damping Coefficients by the Frank Close-fit Method written by Odd M. Faltinsen and published by . This book was released on 1969 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
