长沙理工大学学报(自然科学版)
長沙理工大學學報(自然科學版)
장사리공대학학보(자연과학판)
Journal of Changsha University of Science and Technology(Natural Science)
2014年
3期
34-39
,共6页
靠船墩%撞击%瞬态分析%动力响应
靠船墩%撞擊%瞬態分析%動力響應
고선돈%당격%순태분석%동력향응
dolphin%ship impact%transient analysis%dynamic response
为了解靠船墩结构在船舶撞击作用下的动力响应,以江苏某船闸靠船墩结构为例,采用大型有限元分析软件 ABAQUS中的 Explicit模块,建立了船舶、靠船墩及地基土的三维有限元模型,对船舶撞击靠船墩过程进行瞬态动力分析,得到了高、低水位两种不同工况下撞击力的时程曲线和靠船墩的应力位移等结果。研究结果表明,在两种水位工况条件下,船舶撞击靠船墩时最大压应力均位于船舶与靠船墩接触面上,在靠船墩底板及墩身背水面均产生拉应力,且底板前齿的拉应力较大;在低水位工况下,靠船墩应力大于高水位工况,靠船墩受力更为不利。
為瞭解靠船墩結構在船舶撞擊作用下的動力響應,以江囌某船閘靠船墩結構為例,採用大型有限元分析軟件 ABAQUS中的 Explicit模塊,建立瞭船舶、靠船墩及地基土的三維有限元模型,對船舶撞擊靠船墩過程進行瞬態動力分析,得到瞭高、低水位兩種不同工況下撞擊力的時程麯線和靠船墩的應力位移等結果。研究結果錶明,在兩種水位工況條件下,船舶撞擊靠船墩時最大壓應力均位于船舶與靠船墩接觸麵上,在靠船墩底闆及墩身揹水麵均產生拉應力,且底闆前齒的拉應力較大;在低水位工況下,靠船墩應力大于高水位工況,靠船墩受力更為不利。
위료해고선돈결구재선박당격작용하적동력향응,이강소모선갑고선돈결구위례,채용대형유한원분석연건 ABAQUS중적 Explicit모괴,건립료선박、고선돈급지기토적삼유유한원모형,대선박당격고선돈과정진행순태동력분석,득도료고、저수위량충불동공황하당격력적시정곡선화고선돈적응력위이등결과。연구결과표명,재량충수위공황조건하,선박당격고선돈시최대압응력균위우선박여고선돈접촉면상,재고선돈저판급돈신배수면균산생랍응력,차저판전치적랍응력교대;재저수위공황하,고선돈응력대우고수위공황,고선돈수력경위불리。
Based on the dolphin structure of the ship lock in Jiangsu,the finite analysis soft-ware ABAQUS integral algorithm was used to establish the 3D finite element model of ship,dolphin and foundation,the process of collision was simulated to obtain the impact force-time curve and the stress and strain of the dolphin in two different working conditions of high and low water level.The results show that the maximum compressive stress is on the contact surface,the tensile stress is both in dolphin floor and back surface of the dol-phin,and the maximum tensile stress is in the front teeth of dolphin floor.The stress of the dolphin in low water level is greater and the dolphin is more dangerous.