摘要
采用直接计算法研究一艘大型集装箱船迎浪航行时的外飘砰击压力特点。基于三维势流理论Rankine面元法,应用DNV船级社的商业软件Wasim计算出该船在压载时不同海况下以不同航速航行时在非规则波中时域内的非线性运动响应时历,根据Wagner型冲击理论计算得到该集装箱船艏外飘区域的外飘砰击压力。依据概率随机理论,得到不同工况下的外飘砰击概率以及外飘砰击压力极值,并分析概率和极值特点。
This paper discusses about flare slamming pressure on a large container ship when it runs at head seas with the direct calculation method.Based on 3-D potential flow theory Rankine Panel Method,the nonlinear motion response of the ship was predicted when it runs at different sea conditions and speed in irregular waves in the time domain with the commercial software,Wasim of DNV.Then,the flare slamming pressure on the bow flare area was calculatedbased with the Wagner impact theory.At last,the slamming probability and the extreme value ofthe slamming pressure in different working conditions were calculated based on the probability and stochastic theory,and the characteristics were analyzed.
出处
《船舶工程》
北大核心
2013年第S1期25-27,46,共4页
Ship Engineering
