摘要
为了研究艇底艉部斜升角对深V型艇纵向运动的影响规律,采用系列模型试验方法,在高速拖曳水池中开展了舯部斜升角为24.6°的深V型艇模型规则波中纵向运动试验.结果表明:迎浪规则波中,艇艉斜升角10°的阻力最小.在长波范围内,艉部斜升角增加导致垂荡幅值减少,最大降幅达9.8%,艇体容积傅氏数F为1.18时,艉部斜升角15°所对应的纵摇幅值最小;F为2.2时艉部斜升角10°时的纵摇值最小.艉部斜升角变化对垂向运动加速度的影响较小.
The influence of stern deadrise angles on the longitudinal motion of a deep-V craft is not well understood.In order to investigate their hydrodynamic performance in regular waves,a deep-V series craft with a 24.6° deadrise angle in the midship was systematically investigated in a high speed towing tank.In head sea regular waves,the resistance was least at a stern deadrise angle of 10°.In all long wave types,as the stern deadrise angle increased,the heave motion decreased and the maximum reduction amplitude was up to 9.8%;when the volume Froude number was 1.18 and 2.2,the pitch amplitude was smallest at stern deadrise angles of 15° and 10° respectively.The deadrise angle at the stern was found to have little influence on vertical acceleration.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2010年第9期1138-1143,共6页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(50879090)
关键词
深V型艇
斜升角
纵向运动
波浪中阻力
规则波
deep-V craft
deadrise angle
longitudinal motion
resistance in the wave
regular wave
