A DMM-EMM-RSM hybrid technique on two-dimensional frequency-domain hydroelasticity of floating structures over variable bathymetry
A DMM-EMM-RSM hybrid technique on two-dimensional frequency-domain hydroelasticity of floating structures over variable bathymetry
复制标题
可变测深浮动结构二维频域水弹性的 DMM-EMM-RSM 混合技术
DOI：
10.1016/j.oceaneng.2020.107135
复制
发表时间：
2020-04
影响因子：
5
通讯作者：
Xu Shengwen
中科院分区：
文献类型：
--
作者：
Liu Xiaolei;Wang Xuefeng;Xu Shengwen
本文提出了一种结合离散模块法（DMM）的混合技术（Lu等人，2016）、本征函数匹配方法（EMM）（Tsai等人，2011）和进一步扩展的Rankine源方法（RSM）来处理浮式结构物在可变水深上的二维水弹性问题。在混合技术中，DMM被用来离散一个浮动结构成一组刚性模块连接的弹性梁与结构的等效变形条件;入射波的潜在变化的水深不存在的浮动结构的EMM获得;一个Rankine源方法由冯等。（2017）进一步扩展以获得可变水深上离散多刚性模块的衍射和辐射波势。在频域中，利用DMM将入射势、绕射势和辐射势所施加的波浪载荷代入多刚体动力学方程，建立了浮式结构物在变水深条件下的水弹性耦合模型。混合技术的收敛性通过与公开数据的良好一致性得到验证（Riyansyah等人，2010）的水弹性响应的二维浮式结构在一个平坦的海床。利用该混合技术，初步研究了倾斜海床对浮式结构水弹性响应的影响。
This paper proposes a hybrid technique combining the discrete modules method (DMM) (Lu et al., 2016), the eigenfunction matching method (EMM) (Tsai et al., 2011) and a further extended Rankine source method (RSM) to treat the two-dimensional hydroelastic problem of floating structures over variable bathymetry. In the hybrid technique, DMM is employed to discrete a floating structure into a set of rigid modules connected by elastic beams with equivalent deformation conditions of the structure; the incident wave potential over variable bathymetry without the presence of floating structures is obtained by EMM; a Rankine source method developed by Feng et al. (2017) is further extended to gain the diffracted and radiated wave potentials with the discreted multi-rigid-modules over variable bathymetry. A coupled model for the hydroelasticity of floating structures over variable bathymetry can be established by substituting the external wave loads exerted by the obtained incident, diffracted and radiated potentials into the multi-rigid-body dynamic equation by DMM in the frequency-domain. The convergence of the hybrid technique is validated through a good agreement against published data (Riyansyah et al., 2010) for hydroelastic responses of a two-dimensional floating structure over a flat seabed. Effects of sloping seabeds on hydroelastic responses of the floating structure are preliminarily investigated by the present hybrid technique.
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影响因子：
5
作者：
Xu-jun Chen;You-sheng Wu;W. Cui;J. Jensen
通讯作者：
Xu-jun Chen;You-sheng Wu;W. Cui;J. Jensen
基于多刚体动力学和梁弯曲的VLFS水弹性行为估计方法
影响因子：
2.1
作者：
Shixiao Fu;Xiantao Zhang;Fei Guo;Yun Gao
通讯作者：
Yun Gao
DOI：
10.1016/j.enganabound.2008.02.003
发表时间：
2008-10
影响因子：
3.3
作者：
K. Belibassakis
通讯作者：
K. Belibassakis
影响因子：
5
作者：
Jun Ding;Tian Chao;You-sheng Wu;Zhi-wei Li;Hongjie Ling;Xiaozhou Ma
通讯作者：
Jun Ding;Tian Chao;You-sheng Wu;Zhi-wei Li;Hongjie Ling;Xiaozhou Ma
影响因子：
3.9
作者：
M. Riyansyah;C. Wang;Y. Choo
通讯作者：
M. Riyansyah;C. Wang;Y. Choo