Dynamic Ice Structure Interaction During Continuous Crushing
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Dynamic Ice Structure Interaction During Continuous Crushing
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Author : Mauri Määttänen
language : en
Publisher:
Release Date : 1983
Dynamic Ice Structure Interaction During Continuous Crushing written by Mauri Määttänen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Ice categories.
Dynamic Interactions Between Floating Ice And Offshore Structures
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Author : Paul Croteau
language : en
Publisher: Ann Arbor, Mich. : University Microfilms International
Release Date : 1983
Dynamic Interactions Between Floating Ice And Offshore Structures written by Paul Croteau and has been published by Ann Arbor, Mich. : University Microfilms International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Drilling platforms categories.
Dynamic Ice Structure Interaction During Continuous Crushing
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Author : Mauri Määttänen
language : en
Publisher:
Release Date : 1983
Dynamic Ice Structure Interaction During Continuous Crushing written by Mauri Määttänen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Ice categories.
This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
Ice Interaction With Offshore Structures
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Author : A. B. Cammaert
language : en
Publisher: Van Nostrand Reinhold Company
Release Date : 1988
Ice Interaction With Offshore Structures written by A. B. Cammaert and has been published by Van Nostrand Reinhold Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nature categories.
Dynamic Ice Structure Interaction During Continuous Crushing
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Author :
language : en
Publisher:
Release Date : 1983
Dynamic Ice Structure Interaction During Continuous Crushing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
Proceedings Of The International Conference On Offshore Mechanics And Arctic Engineering
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Author :
language : en
Publisher:
Release Date : 2006
Proceedings Of The International Conference On Offshore Mechanics And Arctic Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Arctic regions categories.
Port And Ocean Engineering Under Arctic Conditions
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Author : William M. Sackinger
language : en
Publisher: Fairbanks, Alaska : Geophysical Institute, University of Alaska Fairbanks
Release Date : 1988
Port And Ocean Engineering Under Arctic Conditions written by William M. Sackinger and has been published by Fairbanks, Alaska : Geophysical Institute, University of Alaska Fairbanks this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nature categories.
122 papers were presented during 14 sessions: Arctic database; Ice properties; Icebreaking vessels; Ice modelling; Arctic port design; Geotechnical; Ice-structure interaction; Ice morphology; Ice dynamics; Ice, climate and forecasting; Spray ice; Remote sensing; and 2 special symposia on Noise and marine mammals, and Steel/concrete composite structural systems.
Symposium On Ice 1986
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Author :
language : en
Publisher:
Release Date : 1986
Symposium On Ice 1986 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Ice categories.
Development Of A Procedure For Predicting Propeller Ice Interaction Forces
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Author : Transportation Development Centre (Canada)
language : en
Publisher:
Release Date : 1989
Development Of A Procedure For Predicting Propeller Ice Interaction Forces written by Transportation Development Centre (Canada) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Ice breaking operations categories.
Poac 91
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Author : Memorial University of Newfoundland. Ocean Engineering Research Centre
language : en
Publisher: St. John's, Nfld. : Ocean Engineering Research Centre, Faculty of Engineering and Applied Science, Memorial University of Newfoundland
Release Date : 1991
Poac 91 written by Memorial University of Newfoundland. Ocean Engineering Research Centre and has been published by St. John's, Nfld. : Ocean Engineering Research Centre, Faculty of Engineering and Applied Science, Memorial University of Newfoundland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Harbors categories.
Proceedings of the eleventh International Conference on Port and Ocean Engineering under Arctic Conditions (St. John's, Newfoundland, September 24-28, 1991) focussing on ice structure interaction, modelling, full scale experience, field measurement and laboratory studies, icebreakers, ports, radar operations and icebergs.