中文摘要：

舭龙骨被广泛用作各型海船的减摇装置,其安装位置对船舶阻力与减摇性能均有一定影响。通过CFD技术获得船体极限流线,通过回归模型建立船舶横摇阻尼关于舭龙骨位置参数的目标函数,并以横摇阻尼最大为目标进行舭龙骨布置的优化,最后以实际船型为例进行了舭龙骨安装位置的确定。

英文摘要：

Bilge keel is widely used as stabilizer on varied seagoing ships. Its arrangement affects the resistance and the roll damping of ships to some extent. The limited streamline is obtained from the CFD result. The regressive model of roll damping on some layout parameters is established by the empirical method. The optimization of bilge-keel arrangement is then acquired when the max roll damping is taken as the aim. At last, taking the actual ship type as an example, the installing position of the bilge keel is confirmed.