DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP

The probability of collisions between offshore wind turbines and ships increases with the development of offshore wind farm. Based on nonlinear dynamic analysis method,through LS-DYNA to simulate the ship impact a 4 MW offshore wind turbine tripod,the paper compare p-y curve method and fixed bottom...

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Main Authors: HAN ZhiWei, ZHOU HongJie, LI Chun, DING QinWei
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2020-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.019
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author HAN ZhiWei
ZHOU HongJie
LI Chun
DING QinWei
author_facet HAN ZhiWei
ZHOU HongJie
LI Chun
DING QinWei
author_sort HAN ZhiWei
collection DOAJ
description The probability of collisions between offshore wind turbines and ships increases with the development of offshore wind farm. Based on nonlinear dynamic analysis method,through LS-DYNA to simulate the ship impact a 4 MW offshore wind turbine tripod,the paper compare p-y curve method and fixed bottom end constraint. The author has a comparison and analysis of energy conversion、maximum collision force、relationship of horizontal displacement and depth of soil、contact force、shear force and stress-strain. The results show that energy conversion of the pie column under the p-y curve is faster than that under the fixed bottom end restraint; the bottom end of the steel pipe column is more susceptible to be damaged when a ship impacts offshore wind turbine foundation under the fixed bottom end restraint method; the soil layer is from shallow to deep,in which shallow soil has the most influence on the stability of the pile and the horizontal displacement of three steel column gradually decreases,the improvement of the properties of the shallow soil can effectively improve the safety of the pile; the increase of the ship quality,the contact force and shear force are increasing; the difference in contact force between the curve method and the fixed bottom end constraint increases with the increase of the quality of the ship,and the shear force difference decreases.
format Article
id doaj-art-1a0ae921ceaf4c48b807cc6fcb34907a
institution Kabale University
issn 1001-9669
language zho
publishDate 2020-01-01
publisher Editorial Office of Journal of Mechanical Strength
record_format Article
series Jixie qiangdu
spelling doaj-art-1a0ae921ceaf4c48b807cc6fcb34907a2025-01-15T02:28:23ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014238439130607735DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIPHAN ZhiWeiZHOU HongJieLI ChunDING QinWeiThe probability of collisions between offshore wind turbines and ships increases with the development of offshore wind farm. Based on nonlinear dynamic analysis method,through LS-DYNA to simulate the ship impact a 4 MW offshore wind turbine tripod,the paper compare p-y curve method and fixed bottom end constraint. The author has a comparison and analysis of energy conversion、maximum collision force、relationship of horizontal displacement and depth of soil、contact force、shear force and stress-strain. The results show that energy conversion of the pie column under the p-y curve is faster than that under the fixed bottom end restraint; the bottom end of the steel pipe column is more susceptible to be damaged when a ship impacts offshore wind turbine foundation under the fixed bottom end restraint method; the soil layer is from shallow to deep,in which shallow soil has the most influence on the stability of the pile and the horizontal displacement of three steel column gradually decreases,the improvement of the properties of the shallow soil can effectively improve the safety of the pile; the increase of the ship quality,the contact force and shear force are increasing; the difference in contact force between the curve method and the fixed bottom end constraint increases with the increase of the quality of the ship,and the shear force difference decreases.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.019Offshore wind turbineTripodCollisionSoil layerPile column
spellingShingle HAN ZhiWei
ZHOU HongJie
LI Chun
DING QinWei
DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
Jixie qiangdu
Offshore wind turbine
Tripod
Collision
Soil layer
Pile column
title DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
title_full DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
title_fullStr DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
title_full_unstemmed DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
title_short DYNAMIC ANALYSES OF SOIL-STRUCTURE INTERACTION IN OFFSHORE WIND TURBINE ON TRIPOD IMPACTED BY A SHIP
title_sort dynamic analyses of soil structure interaction in offshore wind turbine on tripod impacted by a ship
topic Offshore wind turbine
Tripod
Collision
Soil layer
Pile column
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.02.019
work_keys_str_mv AT hanzhiwei dynamicanalysesofsoilstructureinteractioninoffshorewindturbineontripodimpactedbyaship
AT zhouhongjie dynamicanalysesofsoilstructureinteractioninoffshorewindturbineontripodimpactedbyaship
AT lichun dynamicanalysesofsoilstructureinteractioninoffshorewindturbineontripodimpactedbyaship
AT dingqinwei dynamicanalysesofsoilstructureinteractioninoffshorewindturbineontripodimpactedbyaship