海上丝绸之路港口的港湾共振及其引起的系泊船响应研究

波浪是海港设计、建设以及运营全寿命过程的重要荷载。随着我国港口分布的全球化，越来越多港口正遭受周期长于风浪的涌浪和次重力波作用。长周期波传入港内是可能会引起港湾振荡，进而引起系泊船的大幅运动，影响港口的正常装卸操作，严重时甚至造成断缆，引发更具破坏性事故。本项目拟针对长周期波浪作用下的港湾振荡和港内系泊船动力响应展开研究。首次系统开展涌浪、风浪以及风浪和涌浪混合波群激发港湾振荡的研究，厘清不同波群从外海传入港内时，波群中约束长波的变化以及在港内不同频率成分波浪相互作用生成低频波浪的演化。首次系统开展系泊船在港口内振荡水体中动力响应研究，揭示港内不同模态振荡水体作用下系泊船的六自由度运动与受力响应特性和规律。首次开展港湾振荡和系泊船动力响应的人工神经网络快速模拟研究，实现港湾振荡和港内系泊船响应的快速计算，为长周期波浪作用下的港口安全、高效运营提供科学和技术支持。

Waves are an important load in the design, construction and operation of a harbor throughout its life. With the globalization of China's port distribution, more and more ports are suffering from swell and infragravity waves with periods much longer than wind waves. The incidence of long-period waves into the harbor may cause the harbor to oscillate, and then cause large movements of mooring ships, affecting the normal loading and unloading operations of the harbor, and even causing mooring line breakage in severe cases, leading to more destructive accidents. This project intends to carry out research on harbor oscillations and dynamic response of moored ships in harbor under the action of long-period waves. It will be the first systematic research on swells, wind waves, and mixed wave groups of wind and swell waves to stimulate harbor oscillations, conducted to clarify the changes of bound long waves in wave groups and the evolution of low-frequency waves generated by the nonlinear interaction of waves with different frequency components in the harbor when different wave groups entered the harbor from the open sea. It will be the first systematic research on the dynamic response of a mooring ship in an oscillating water in a port, which will reveal the six-degree-of-freedom motion and dynamical response characteristics and rules of a mooried ship under the action of oscillating water in the port of different modes. It will be the first rapid simulation research on harbor oscillation and mooring ship dynamic response based on the artificial neural networks, and for the first time to realize the rapid calculation of harbor oscillation and mooring ship response within the port, providing scientific and technical support for safe and efficient operation of the port under the action of long-period waves.