Download or read book Hydrodynamic Analysis of Propeller induced Vibration written by Albert Jefferson and published by . This book was released on 2007 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Theory and Practice of Hydrodynamics and Vibration written by Subrata Kumar Chakrabarti and published by World Scientific. This book was released on 2002 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the basics of the hydrodynamics and vibration of structures subjected to environmental loads. It describes the interaction of hydrodynamics with the associated vibration of structures, giving simple explanations. Emphasis is placed on the applications of the theory to practical problems. Several case studies are provided to show how the theory outlined in the book is applied in the design of structures. Background material needed for understanding fluid-induced vibrations of structures is given to make the book reasonably self-sufficient. Examples are taken mainly from the novel structures that are of interest today, including ocean and offshore structures and components. Besides being a text for undergraduates, this book can serve as a handy reference for design engineers and consultants involved in the design of structures subjected to dynamics and vibration.
Download or read book Hydrodynamics of Ship Propellers written by John P. Breslin and published by Cambridge University Press. This book was released on 1994 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical introduction to ship propeller hydrodynamics, for researchers in ocean technology, naval architecture, mechanical engineering.
Download or read book Bibliography for the Study of Propeller induced Vibration in Hull Structural Elements written by O. H. Burnside and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography is not meant to be an exhaustive bibliography of all references dealing with propeller-induced vibrations. Emphasis has been placed on the current generation of large, high-powered ships.
Download or read book Hydrodynamic Propulsion and Its Optimization written by J.A. Sparenberg and published by Springer Science & Business Media. This book was released on 1994-12-31 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: HYDRODYNAMIC PROPULSION AND ITS OPTIMIZATION ANALYTIC THEORY Hydrodynamic propulsion has been of major interest ever since craft took to the water. In the course of time, many attempts have been made to invent, develop, or to improve hydrodynamic propulsion devices. Remarkable achievements in this field were made essentially by experienced individuals, who were in need of reliable propulsion units such as paddle wheels, sculling devices, screw propellers, and of course, sails. The problem of minimizing the amount of input energy for a prescribed effective output was first investigated seriously at the beginning of this century. In 1919, BETZ presented a paper on air-screw propellers with minimum consumption of energy which could be applied to ship-screw propellers also. Next, attempts were made to optimize hydrodynamic propulsion units. Ensuing investigations concerned the optimization of the hydrodynamic system: ship-propeller. The first simple theory of ship propulsion which was presented considered more or less only thrust augmentation, wake processing and modification of propeller characteristics when operating behind the ships hull. This theory has been little improved meanwhile and is still useful, particularly with regard to practical ship design and for evaluating results of ship model tests. However, this theory is not adequate for optimization procedures necessary for high-technology propulsion, particularly for ship propellers utilizing propulsion improving devices such as tip end plates or tip fins at the propeller blades, spoilers in front of the propeller, asymmetrical stern etc.
Download or read book Twenty Second Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 2000-03-02 with total page 1039 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Twenty-Second Symposium on Naval Hydrodynamics was held in Washington, D.C., from August 9-14, 1998. It coincided with the 100th anniversary of the David Taylor Model Basin. This international symposium was organized jointly by the Office of Naval Research (Mechanics and Energy Conversion S&T Division), the National Research Council (Naval Studies Board), and the Naval Surface Warfare Center, Carderock Division (David Taylor Model Basin). This biennial symposium promotes the technical exchange of naval research developments of common interest to all the countries of the world. The forum encourages both formal and informal discussion of the presented papers, and the occasion provides an opportunity for direct communication between international peers.
Download or read book Propeller induced Vibration written by Kareem Al-Taiby and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Ship's propellers are main sources of onboard vibration that can have adverse effects on humans and machinery alike. A reliable design tool that allows the prediction of propeller induced vibration, in the early design phases of new constructions would help prevent damage or discomfort and reduce costs related to later modifications of the propellers. In an effort to obtain data on vibration generated by ship's propellers, tests can be performed on a ship model in a tow tank. Self-Propulsion, Resistance and Bollard tests are established tests used to characterize the ship's hydrodynamics in a tow tank. Recently some researchers are investigating the possibilities to help understand the how the propeller design affects the vibration and vibration propagation to the ship body. One of the main problems with these tests is the separation of vibrational contribution of the propeller versus the fundamental frequencies of the ship model. In this work, experimental model tests were performed to evaluate the pressure fluctuations created by the propeller on a vessels structure. Methods used to perform these tests included Experimental Modal Analysis and Operating Deflection Shape, the latter performed during the hydrodynamic tests. The results show how pressure measurements can be influenced by structural vibration and thus the importance of identifying ranges of vibrational effects from the ship models' structure during hydrodynamic testing to understand if structural vibrations need to be removed from the pressure sensor measurements to give an accurate representation of vibration effects due to the propeller.
Download or read book A Design Procedure for Minimizing Propeller induced Vibration in Hull Structural Elements written by and published by . This book was released on 1979 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover title.
Download or read book Unsteady Propeller Forces Fundamental Hydrodynamics and Unconventional Propulsion written by Ralph D. Cooper and published by . This book was released on 1971 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrations of a Marine Propeller Operating in a Nonuniform Inflow written by James Emmert Brooks and published by . This book was released on 1980 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of blade vibration on the unsteady forces developed by an elastic marine propeller is investigated for a controlled laboratory situation. The study involves the development of a theory for a flexible propeller operating in a spatially nonuniform inflow velocity field and a series of experimental tests. Measurements of unsteady propeller forces in a 24-inch water tunnel are presented for two model propellers whose fundamental resonance frequencies are excited by a nonuniform inflow field. Measured unsteady thrust and torque, presented as a function of excitation frequency, show distinctly different elastic effects--one propeller demonstrates a large force amplification near its resonance frequency while the other did not. The simple theoretical model explains the difference as being due to the differing amounts of induced hydrodynamic damping; there is a large hydrodynamic damping in one case and a small amount in the other case. Another result of the study is that blade vibration can significantly reduce the unsteady forces transmitted to the propeller shaft over a certain range of excitation frequencies. Calculated forces are in general agreement with the experimental measurements. (Author).
Download or read book Marine Propellers and Propulsion written by John Carlton and published by Butterworth-Heinemann. This book was released on 2012-10-30 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: The early development of the screw propeller. Propeller geometry. The propeller environment. The ship wake field, propeller performance characteristics.
Download or read book Ships and Offshore Structures XIX written by Carlos Guedes Soares and published by CRC Press. This book was released on 2015-09-03 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three-volume work presents the proceedings from the 19th International Ship and Offshore Structures Congress held in Cascais, Portugal on 7th to 10th September 2015. The International Ship and Offshore Structures Congress (ISSC) is a forum for the exchange of information by experts undertaking and applying marine structural research.The aim of
Download or read book Flow induced Vibration written by Robert D. Blevins and published by . This book was released on 2001-01-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on applications for offshore platforms and piping; and, wind-induced vibration of buildings, bridges, and towers. This title also focuses on acoustic and mechanical vibration of heat exchangers, power lines, and process ducting.
Download or read book Flow induced Vibrations an Engineering Guide written by Eduard Naudascher and published by Routledge. This book was released on 2017-11-13 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed for engineers, this work considers flow-induced vibrations. It covers topics such as body oscillators; fluid loading and response of body oscillators; fluid oscillators; vibrations due to extraneously-induced excitation; and vibrations due to instability-induced excitation.
Download or read book Symposium on Naval Hydrodynamics written by and published by . This book was released on 1986 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SSC written by United States. Ship Structure Committee and published by . This book was released on 1946 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamics of High Speed Marine Vehicles written by Odd M. Faltinsen and published by Cambridge University Press. This book was released on 2006-01-09 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamics of High-Speed Marine Vehicles, first published in 2006, discusses the three main categories of high-speed marine vehicles - vessels supported by submerged hulls, air cushions or foils. The wave environment, resistance, propulsion, seakeeping, sea loads and manoeuvring are extensively covered based on rational and simplified methods. Links to automatic control and structural mechanics are emphasized. A detailed description of waterjet propulsion is given and the effect of water depth on wash, resistance, sinkage and trim is discussed. Chapter topics include resistance and wash; slamming; air cushion-supported vessels, including a detailed discussion of wave-excited resonant oscillations in air cushion; and hydrofoil vessels. The book contains numerous illustrations, examples and exercises.
