摘要
借助实船操纵性试验数据库,对船舶操纵运动数学模型进行了大量的仿真比较研究,发现纵向阻尼水动力导数X′rr,直航时舵处伴流系数ωR0,舵处整流系数γ对预报精度有很大的影响,因此利用实船操纵性试验结果,并以单纯形法对上述三个参数进行寻优,从而提高了仿真预报的精度.
Based on the database of full scale ship manoeuvring trial, a large number of simulation researches on the ship manoeuvring mathematical model are made. It is found that the lonitudinal componet coefficient X′ rr , the wake fraction coefficient ω R0 and the flow strightening coefficient γ obviously affect the ship manoeuvring prediction performance. Finally, the optimum seeking with the Single shape Method for above three coefficients is made.
出处
《大连海事大学学报》
CAS
CSCD
1997年第2期26-30,共5页
Journal of Dalian Maritime University
关键词
船舶操纵
运动
数学模型
预报精度
数据库
ship manoeuvring
mathematical model
precise prediction
parameter optimum seeking
full scale trial