波浪作用下海工结构物周围海床动力响应数学模型(Wave-INduced seaBED response, WINBED)由河海大学海岸整治修复研究团队张弛教授和隋倜倜博士领衔开发。WINBED模型的研发和改进得到国家自然科学基金面上项目(51879096)和青年项目(51909076)等项目的支持。
WINBED模型求解非线性波浪压力作用下的三维非均匀海床动力响应及液化,海床内部孔隙水流动,水动力作用下结构应力变形,结构物-海床的双向耦合过程。数值模拟结果可用于海岸水动力环境下结构物及其基础稳定性的评估。
欢迎感兴趣的科研人员共同优化WINBED,有关WINBED信息和模型应用可联系:
隋倜倜博士 ttsui@hhu.edu.cn; 王赵军博士生 zjwang@hhu.edu.cn; 张弛教授 zhangchi@hhu.edu.cn
模型框架:
1. 波浪模块:开源非线性波浪模型FUNWAVE;三维CFD模型TRUCHAS。
2. 海床模块:求解全动态非均匀海床动力响应方程(FD model);求解三维海床累积响应方程。
3. 结构物模块:求解结构线性弹性方程。
模型特点:
1. 考虑静水环境下结构物周围海床固结过程,计算和评估结构物周围海床剪切破坏区域。
2. 推导空间非均匀海床动力响应方程,最多可考虑土体八参数变化下的非均匀海床动力响应问题。
3. 瞬时响应求解全动态海床动力响应方程,考虑孔隙流体和土骨架加速度,可计算结构物高频振动下周围海床的动力响应过程。
4. 以剪切应力为驱动动力,模型可计算海床三维累积响应及累积液化范围。
5. 结构物和海床模块分块求解,在边界处双向耦合,较好地考虑结构物-海床的相互作用过程。
6. 海床模型预留波浪压力输入接口,方便与各种水动力模型整合。
计算机软件著作权:
三维全动态波致海床响应数值计算软件(HHU-WINBED),登记号2012SR121964,证书号软著登字第0490000号。
模型评价:
基于WINBED模型的研究成果《单桩周围非均匀海床波致动力响应及液化研究》获2018年江苏省优秀博士论文奖(隋倜倜,导师:郑金海教授,张弛教授)。
正在开展的模型改进:
基于土体变形弹塑性本构关系,开发波浪作用下土体响应弹塑性模型;丰富结构物应力输入接口,基于室内试验和现场测量数据,优化变压力输入条件下结构物-海床耦合响应过程;测试不同非线性波浪荷载作用下海床动力响应模型计算性能。
相关文献:
[1] Titi Sui, Chi Zhang, Yakun Guo, Jinhai Zheng, Jisheng Zhang, Dongsheng Jeng and Wei Zhang. (2016). Three-dimensional Numerical Model for Wave Induced Seabed Response around Mono-pile. Ships and Offshore Structures, 11(6), 667-678.
[2] Titi Sui, Jinhai Zheng, Chi Zhang, Dongsheng Jeng, Jisheng Zhang, Yakun Guo, Rui He. (2017). Consolidation of unsaturated seabed around an inserted pile foundation and its effects on the wave-induced momentary liquefaction. Ocean Engineering, 131: 308-321.
[3] Titi Sui, Chi Zhang, Dong-sheng Jeng, Yakun Guo, Jinhai Zheng, Wei Zhang, Jian Shi. 2019. Wave-induced seabed residual liquefaction around a mono-pile foundation with various embedded depth. Ocean Engineering, 173, 157-173.
[4] Chi Zhang, Titi Sui*, Jinhai Zheng, Mingxiao Xie and Viet Thanh Nguyen. (2016). Modelling wave-induced 3D non-homogeneous seabed response. Applied Ocean Research, 61, 101-114.
[5] Chi Zhang, Qingyang Zhang, Zaitian Wu, Jisheng Zhang, Titi Sui and Yucheng Wen. (2015). Numerical Study on Effects of the Embedded Monopile Foundation on Local Wave-Induced Porous Seabed Response. Mathematical Problems in Engineering. 184621, 13 pages.
[6] Titi Sui, Yu Jin, Zhaojun Wang, Chi Zhang*, Jian Shi. 2019. Effects of the Soil Property Distribution Gradient on the Wave-Induced Response of a Non-Homogeneous Seabed. Journal of Marine Science and Engineering, 7(8), 281.
[7] Titi Sui, Chi Zhang, Jinhai Zheng, Yakun Guo, Mingxiao Xie (2018). Numerical study of standing wave-induced seabed residual response with the non-homogeneous soil property. Journal of Coastal Research, 85 (sp1), 921-925.
[8] 隋倜倜,张弛,郑金海.(2018).波浪作用下单桩基础周围海床液化机制研究. 海洋工程, 4, 88-96
[9] 单桩基础周围海床波致动力响应机制与数值模拟研究,河海大学出版社,南京,中国,2018.
[10] Titi Sui, Chi Zhang, Jinhai Jeng, Dongsheng Jeng. (2018). Dynamic Residual Seabed Response around a Movable Pile Foundatoin. Preceeding of 36th International Conference on Coastal Engineering (ICCE), Baltimore, United States.
[11] Titi Sui, Jinhai Zheng, Chi Zhang, Jisheng Zhang and Gang Wang. (2013). Wave-Induced Porous Seabed Response around Pile-Group Foundations. 23th International Offshore and Polar Engineering Conference (ISOPE), Alaska, America.
[12] Titi Sui, Jisheng Zhang, Jinhai Zheng and Chi Zhang. (2013). Modeling of Wave-induced Seabed Response and Liquefaction Potential Around Pile Foundation. 32th International Conference on Ocean, Offshore and Arctic Engineering (OMAE), Nantes, France.
[13] Jinhai Zheng, Titi Sui and Chi Zhang. (2014). Effects of Horizontal Nonhomogeneous Soil Property on Local Wave-induced Soil Response. 34th International Conference on Coastal Engineering (ICCE), Seoul, Korea.
[14] 陈俊东,张弛,隋倜倜,郑金海.(2016)波浪加速度不对称性对海床液化的影响.水利水电科技进展,36(4):20-24.