Probability Analysis of the Wave-Slamming Pressure Values of the Horizontal Deck with Elastic Support
Probability Analysis of the Wave-Slamming Pressure Values of the Horizontal Deck with Elastic Support
复制标题
弹性支撑水平甲板波浪冲击压力值的概率分析
DOI：
10.1007/s11802-018-3356-6
复制
发表时间：
2018
影响因子：
1.6
通讯作者：
Wang Pengtao
中科院分区：
文献类型：
--
作者：
Zuo Weiguang;Liu Ming;Fan Tianhui;Wang Pengtao
本文通过对弹性支承水平甲板上规则波砰击的试验研究，给出了砰击压力的概率分布。通过对实验数据的统计分析，首次获得了波浪冲击过程中砰击压力的时间序列。分析了最大砰击压力峰值的超越概率分布和分布参数，结果表明最大砰击压力峰值的超越概率分布符合三参数威布尔分布。此外，还研究了分布参数的取值范围和相互关系。在波浪冲击过程中，当随机峰值等于样本平均值时，位置参数D与尺度参数L之和约等于1.0，超越概率大于36.79%。综合分析了不同模型条件下砰击压力分布参数和砰击压力的变化规律，以及不同试验模型下砰击压力峰值Weibull分布参数值的差异。发现由于弹性支撑的刚度增加，参数值减小。初步探讨了结构模型在波浪冲击作用下的破坏准则，认为当波浪冲击过程中的平均砰击时间大于一定值时，结构模型即被破坏。最后对实验研究的结论进行了描述。
This paper presents the probability distribution of the slamming pressure from an experimental study of regular wave slamming on an elastically supported horizontal deck. The time series of the slamming pressure during the wave impact were first obtained through statistical analyses on experimental data. The exceeding probability distribution of the maximum slamming pressure peak and distribution parameters were analyzed, and the results show that the exceeding probability distribution of the maximum slamming pressure peak accords with the three-parameter Weibull distribution. Furthermore, the range and relationships of the distribution parameters were studied. The sum of the location parameterDand the scale parameterLwas approximately equal to 1.0, and the exceeding probability was more than 36.79% when the random peak was equal to the sample average during the wave impact. The variation of the distribution parameters and slamming pressure under different model conditions were comprehensively presented, and the parameter values of the Weibull distribution of wave-slamming pressure peaks were different due to different test models. The parameter values were found to decrease due to the increased stiffness of the elastic support. The damage criterion of the structure model caused by the wave impact was initially discussed, and the structure model was destroyed when the average slamming time was greater than a certain value during the duration of the wave impact. The conclusions of the experimental study were then described.