【摘要】 结合IMCA相关规范,介绍预估船舶动力定位能力的方法,阐述动力定位能力的计算流程,分析常见的风、流系数的区别与适用范围,给出适用于海洋工程辅助船的风力及水流力计算系数,编制船舶动力定位能力分析系统。以海洋工程辅助船为对象,预估其最大动力定位能力及在定海况下各桨推力使用情况,分析各类型系数在计算中的结果,并结合试验验证该系统的可靠性。更多还原

【Abstract】 Based on the IMCA specifications,the analysis method and algorithm of position-keeping capability of Dynamic Positioning(DP)systems is introduced;the coefficients of IMCA and OCIMF are discussed,and a new coefficient of wind and current for offshore support vessels(OSV)is proposed;a DP capability analysis system is put forward.The proposed analysis system has been used for predicting the DP capability of an OSV.The calculation is conducted with different coefficients,including the coefficients of IMCA,OCIMF and the proposed one.The results indicate that that the proposed coefficients give a result which is very close to that of test,therefore,better for OSV DP than others.更多还原