基于模矢搜索的船舶系泊评价函数

分析了大型船舶系泊时受力情况,建立了船舶系泊时环境力、缆绳和护舷的受力计算数学模型.根据系泊船舶的受力分析,建立了船舶系泊评价函数,利用模矢搜索法优化求解了船舶系泊评价函数,为船舶系泊安全评价提供了理论依据.利用船舶系泊评价函数计算了175000DWT散货船码头系泊时缆绳和护舷受力,并对计算结果与系泊试验结果和以往的蒙特卡洛计算结果进行比较分析.结果表明,所提出的船舶系泊评价函数和模矢搜索的优化算法是正确的,可以用于对船舶系泊安全进行评价.

The Ship Mooring Evaluation Function Based on Pattern Search

The forces of large ships in mooring were analyzed,the mooring forces of environment,lines and fenders were calculated,and the mooring evaluation function was established.The mooring evaluation function was optimized through pattern search.The mooring evaluation function for large ships provides theoretical foundation.Loads in mooring for 175000DWT bulk cargo ship were computed with the mooring evaluation function,and the results were compared with experimental results.The calculation and comparison prove that it is correct to use mooring evaluation function and pattern search to appraise large ships mooring safety.