摘要
在浮托运输和安装中,为了满足平台桩腿间距对安装驳船宽度的限制以及驳船足够的横稳性需要,提出了T型驳船的概念。和传统的驳船相比,T型驳船首尾宽度相差较大,因而具有一些较好的水动力性能。文中分别从频域和时域对T型驳船和传统驳船的水动力性能进行了比较研究。在频域计算程序WAMIT的辅助下,得到了驳船的运动幅值响应算子(RAO)和波浪慢漂力,同时使用FORTRAN自编程序对驳船在不规则波浪下的运动进行时域模拟,得到运动时历和统计值。此外,开展了相应的模型试验研究来验证数值计算结果。通过比较模型试验和数值模拟的结果,发现两者十分吻合,从而验证了数值模拟的可靠性。在此基础上对不同船型的水动力计算结果进行了比较,结果表明T型驳船在组块运输过程中具有较好的水动力性能。
T-shaped barge is a new concept in floatover transportation and installation in order to satisfy both the breadth limit of platform slot and transverse stability requirement. It has some char-acteristics different from conventional barges. In this paper, comparisons of hydrodynamic perfor-mance between T-shaped barge and conventional barge are performed in frequency and time do-main. Motion RAOs （response amplitude operator） and drift forces are obtained using the code WAMIT in frequency domain. Besides, motion series and statistics in irregular waves are calculated in time domain by a self-compiled program with FORTRAN code. Corresponding model tests are also carried out to verify the numerical results and it turns out that the test results agree quite well with numerical computation. Comparisons between T-shaped barge and conventional barge show that T-shaped barge has better hydrodynamic performance in topside transportation.
出处
《船舶力学》
EI
CSCD
北大核心
2013年第12期1426-1438,共13页
Journal of Ship Mechanics
基金
Supported by the Youth Innovation Fund of State Key Laboratory of Ocean Engineering(No.GKZD010059-21)
关键词
浮托法
T型驳船
海上运输
水动力性能
floatover
T-shaped barge
marine transport
hydrodynamic performance
