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Saturday, May 16, 2020 | History

2 edition of Random response of offshore structures to wave and current forces found in the catalog.

Random response of offshore structures to wave and current forces

Song C. Wu

Random response of offshore structures to wave and current forces

by Song C. Wu

  • 35 Want to read
  • 40 Currently reading

Published by University of North Carolina Sea Grant Program, North Carolina State University in Raleigh .
Written in English

    Subjects:
  • Structural dynamics.,
  • Ocean waves.,
  • Ocean currents.,
  • Offshore structures.

  • Edition Notes

    Includes bibliographies.

    StatementSong C. Wu and Chi C. Tung.
    SeriesSea grant publication ; UNC-SC-75-22, Sea Grant publication (Raleigh, N.C.) ;, UNC-SC-75-22.
    ContributionsTung, C. C., joint author.
    Classifications
    LC ClassificationsTA654.55 .W8
    The Physical Object
    Paginationiv, 116 p. :
    Number of Pages116
    ID Numbers
    Open LibraryOL5018384M
    LC Control Number76622127

    ABSTRACT: This paper provides a broad overview of some of the key factors in the analysis and design of offshore structures to be considered by an engineer uninitiated in the field of offshore engineering. Topics covered range from water wave theories, structure-fluid interaction in waves File Size: 1MB.   Used for both fixed and floating offshore structures, Design wave of specified height and period, Evaluation of the loads resulting from a regular wave with height and period as specified. Applying the design wave method, the combined effects of wind, waves, and current on a fixed offshore structure are normally treated as quasistatic forces.

    structure through natural phenomena such as wave, current, wind, earthquake, and earth movement. But of the various types of environmental loads, wave force load is the dominated loads and most likely the frequently occur load. It is necessary to design an offshore structure such that it can respond to moderate environmental. Wave Forces on Offshore Structures Turgut 'Sarp' Sarpkaya. out of 5 stars 2. Kindle Edition. $ Next. Recommended popular audiobooks. Page 1 of 1 Start over Page 1 of 1. This shopping feature will continue to load items when the Enter key is pressed. In order to navigate out of this carousel please use your heading shortcut key to Cited by:

    Also, the book gives some worked examples for the design of offshore or coastal structures. An exciting subject dealt with in the book is the quasi-deterministic mechanics of three-dimensional wave groups in sea storms, and the loads exerted by these wave groups on offshore structures. Wave and current forces on fixed offshore structures. Michael Isaacson. Canadian Journal of Civil Engineering, , 15(6): , hydrodynamics, ocean engineering, offshore structures, waves, wave forces. Cited by. View all 3 citing articles. Article Tools. Add to Favorites Download CitationCited by: 7.


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Random response of offshore structures to wave and current forces by Song C. Wu Download PDF EPUB FB2

Results show that both the quasi‐static response and the dynamic response of offshore platforms to wave forces are generally underestimated if the drag force is linearized. Estimates are developed for probabilistic characterictics of these responses based on the crossing theory of random processes and time‐discretization of the wave force process.

Random response of offshore structures to wave and current forces. Raleigh: University of North Carolina Sea Grant Program, North Carolina State University, (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors / Contributors: Song C Wu; C C Tung.

random response of offshore structures to wave and current forces Dynamic responses of offshore structures to random waves and steady current are examined. The structural response quantities examined are the displacement, shear, and bending by: 9. A thorough understanding of the interaction of waves and currents with offshore structures has now become a vital factor in the safe and economical design of various offshore technologies.

There has been a significant increase in the research efforts to meet this by: The book explains the fundamentals of probabilistic processes, the theory or analysis of sea states, and the random-vibration approach to structural response.

The text describes the hydrodynamics of water waves, wave forecasting, and the statistical parameters associated with sea-states. Mechanics of Wave Forces on Offshore Structures. Sarpkaya, Author, T. Sarpkaya, Author Offshore structures, Wave forces.

This content is only available via PDF. Effect of Dynamic Behaviour of Piles on Offshore Towers Response. OMAECited by: offshore structures have been constructed through out the world. Offshore structures are designed for random wind and wave loads. At the global level the lateral wind load in the design of fixed offshore structures is of the order 10% of the total lateral loads and 25% in.

WAVE FORCES ON OFFSHORE STRUCTURES A thorough understanding of the interaction of waves and currents with offshore structures has now become a vital factor in the safe and eco-nomical design of various offshore technologies.

There has been a sig-nificant increase in the research efforts to meet this need. Although. The main force acting on an offshore structure is usually due to wind-generated random waves. According to the Morison equation, the wave force on a cylindrical member of an offshore structure. It is found that the hydrodynamic damping forces are higher in random seas than in still water and sea waves generally reduce the seismic response of offshore structures.

Studies on the first passage probabilities of response indicate that small sea waves enhance the reliability of offshore structures against earthquakes by: 6. Wave forces on offshore structures. This model is used to study the structural response with special focus on ringing and response to breaking wave events.

current, wind and wave forces. Keywords: offshore structures, response, probability distribution, wave loading, Morison’s equation. 1 Introduction For an offshore structure, wind, wave and gravitational forces are all important sources of loading.

The dominant load, however, is normally due to windgenerated random : G. Najafian. Forces on Oscillating Structures Wave Plus Current Loads Design Values for Hydrodynamic Coefficients 15 Offshore environmental loads and wind turbine design: A Note on Scour.

A Note on Scour. m wave height = = Average Filtered Measured Response Stream Function Model, order 12 Linear File Size: KB. Floating moored offshore structures have a significant future in offshore operations as an attractive economic alternative to fixed structures in deep waters and/or in areas where there is no existing infrastructure.

This paper describes an analysis procedure based on the structure variable approach to estimate load and response values of a moored offshore platform at a given return Cited by: 5.

A thorough understanding of the interaction of waves and currents with offshore structures has now become a vital factor in the safe and economical design of various offshore technologies. There has been a significant increase in the research efforts to meet this need.

Although considerable progress has been made in the offshore industry and in /5(2). Wave Forces on Offshore Structures Although considerable progress has been made in the offshore industry and in the understanding of the interaction of waves, currents, and wind with ocean structures, most of the available books concentrate only on practical applications without a grounding in the physics.

and to design new and. Publisher Summary. This chapter provides an account of the discussions and recommendations received at the 14 th International Ship and Offshore Structures Congress (ISSC) and presents the progress achieved in characterizing the environment.

This session was observed during the three-year term in a manner useful to those in charge of the design and operation of ships and offshore structures.

simulate wave and current forces on template offshore structures using traditional numerical methods with minimal sacrifice towards accuracy.

(ii) To couple the written program to an existing 3-D finite element program. Finally, to show the applicability of the coupled program by analyzing a simple offshore structure. Wave TheoriesFile Size: KB. Dynamics of Offshore Structures provides an integrated treatment of the main subject areas that contribute to the design, construction, installation, and operation of fixed and floating offshore structures.

The book begins with an overview of offshore oil and gas development and offshore Edition: 1. the service time of the ship or marine structures. For example, in offshore structures the year wave is one of the typical design conditions. In ship structural design, the wave load and response predictions are often defined at the probability level of This corresponds of an occurrence that is expected to encounter once in Size: KB.

SHIPS AND OFFSHORE STRUCTURES – Vol. II - Offshore Structure Design And Construction - Paul A Frieze ©Encyclopedia of Life Support Systems (EOLSS) changes in payload Spar - see Figure 10 Drilling, production, storage (limited) Dry trees WD current maxm m up to m, roll, pitch & heave significant Table 1.analyzing a large variety of offshore structures subjected to wave, current and wind loading – More than half of all North Sea jacket structures have been designed with the aid of ASAS • CAE requirements for other offshore structures are very similar!

Topics like random waves, wind and current, etc. will be developed from the fundamental principles and their applications to offshore structures will be discussed. The design aspect of the offshore structure, both for short-term and long-term response and structural fatigue, are important elements of the dynamic response and will be further.