石油矿场机械
石油礦場機械
석유광장궤계
OIL FIELD EQUIPMENT
2014年
8期
37-42
,共6页
自升式钻井平台%升降系统%拔桩过程%动力学模拟
自升式鑽井平檯%升降繫統%拔樁過程%動力學模擬
자승식찬정평태%승강계통%발장과정%동역학모의
jack-up platform%lift system%pile pulling process%dynamic simulation
在自升式钻井平台拔桩过程中，桩腿受力大，尤其是桁架结构的桩腿，不能忽略其弹性对系统运动造成的影响。以桁架自升式钻井平台为研究对象，对拔桩过程中平台主要受力的简化及模拟方法进行了阐述。建立了包括升降系统、桁架桩腿及船体在内的平台动力学模型。利用 ADAMS软件对该平台的拔桩过程进行了动力学分析，得到了以不同降船速度拔桩时，桁架桩腿分别设置为刚体和柔性体时平台的运动及振动特性，得出了考虑桩腿弹性对平台运动的影响。为以后自升式钻井平台桩腿及升降系统的设计及其动力学分析提供参考。
在自升式鑽井平檯拔樁過程中，樁腿受力大，尤其是桁架結構的樁腿，不能忽略其彈性對繫統運動造成的影響。以桁架自升式鑽井平檯為研究對象，對拔樁過程中平檯主要受力的簡化及模擬方法進行瞭闡述。建立瞭包括升降繫統、桁架樁腿及船體在內的平檯動力學模型。利用 ADAMS軟件對該平檯的拔樁過程進行瞭動力學分析，得到瞭以不同降船速度拔樁時，桁架樁腿分彆設置為剛體和柔性體時平檯的運動及振動特性，得齣瞭攷慮樁腿彈性對平檯運動的影響。為以後自升式鑽井平檯樁腿及升降繫統的設計及其動力學分析提供參攷。
재자승식찬정평태발장과정중，장퇴수력대，우기시항가결구적장퇴，불능홀략기탄성대계통운동조성적영향。이항가자승식찬정평태위연구대상，대발장과정중평태주요수력적간화급모의방법진행료천술。건립료포괄승강계통、항가장퇴급선체재내적평태동역학모형。이용 ADAMS연건대해평태적발장과정진행료동역학분석，득도료이불동강선속도발장시，항가장퇴분별설치위강체화유성체시평태적운동급진동특성，득출료고필장퇴탄성대평태운동적영향。위이후자승식찬정평태장퇴급승강계통적설계급기동역학분석제공삼고。
Legs are under great force during the pile pulling process of jack-up platform,the impact on platform system caused by its flexibility cannot be ignored especially on the truss structure legs.The truss jack-up platform was taken as the study object to elaborate the way of simplifying and simulating the main force on the jack-up platform during the pile pulling process and to build the dynamic model of jack-up platform including the lift system,truss legs and the hull.Dynamic simulation of platform’s pile pulling process by ADAMS software was carried out,the movements and vibration characteristics of the platform were got when the platform was under different ve-locities and the legs were set as rigid or flexible body.The influences on platform was got when consider the flexibility of truss legs.The important references are provided for the future design of the legs and lifting system of the jack-up platform.
