船舶设计通讯
船舶設計通訊
선박설계통신
JOURNAL OF SHIP DESIGN
2014年
z1期
8-11
,共4页
自升式钻井平台%稳性%风倾力矩%NAPA%风模型
自升式鑽井平檯%穩性%風傾力矩%NAPA%風模型
자승식찬정평태%은성%풍경력구%NAPA%풍모형
self-elevating drilling rig%stability%wind heeling moments%NAPA%wind model
自升式钻井平台由于其特殊的船体特征，稳性计算与常规船型区别较大，计算的关键在于确定完整和破损情况下的极限重心高。在分析自升式钻井平台风倾力矩、完整稳性和破舱稳性计算要点的基础上，应用NAPA软件给出了某350英尺自升式钻井平台的稳性计算过程，阐述了风模型的建立，吃水范围、风向角间隔以及初始重心高的取法等关键点。
自升式鑽井平檯由于其特殊的船體特徵，穩性計算與常規船型區彆較大，計算的關鍵在于確定完整和破損情況下的極限重心高。在分析自升式鑽井平檯風傾力矩、完整穩性和破艙穩性計算要點的基礎上，應用NAPA軟件給齣瞭某350英呎自升式鑽井平檯的穩性計算過程，闡述瞭風模型的建立，喫水範圍、風嚮角間隔以及初始重心高的取法等關鍵點。
자승식찬정평태유우기특수적선체특정，은성계산여상규선형구별교대，계산적관건재우학정완정화파손정황하적겁한중심고。재분석자승식찬정평태풍경력구、완정은성화파창은성계산요점적기출상，응용NAPA연건급출료모350영척자승식찬정평태적은성계산과정，천술료풍모형적건립，흘수범위、풍향각간격이급초시중심고적취법등관건점。
The stability calculation of self-elevating drilling rig was different from the conventional ships because of its special hull shape,and the major work of the calculation is to determine the maximum allowable value of the center of gravity . This paper analyzed the main effects on the wind heeling moments and the intact and damage stability calculation,and gave the calculation process of a 350 ft Jack-up drilling rig based on NAPA. The key points on modeling of wind profile,draught range,interval of azimuth angles and the initial height of the center of gravity were pointed out.
