Abstract: Aiming at the energy conservation and emission reduction of the ship, a marine solar photovoltaic flexible support which can be laid on the deck has been designed based on the parameters and operation conditions of the KVLCC2, and the vibration response characteristics are analyzed. The effects of the wind load and the pitch and heave of the ship on the vibration response characteristics of the flexible support are studied by using the fluid-structure interaction decoupling calculation method. The results show that the amplitude and the average internal stress of the steel cable are the largest under the pitch condition, which have an adverse effect on the flexible support, followed by the pitch and heave conditions, and the lowest under the heave condition. The maximum structural stress occurs at the boundary of the steel cable support, and the plastic deformation will occur earliest if the external load increases further. The average stress and amplitude of the steel cable in the middle of the flexible support are the largest, and fatigue failure may occur under the cyclic stress and strain. The above conclusions provide a basis for the design, manufacture and daily use of the marine solar photovoltaic flexible support.

Key words: solar photovoltaic, flexible support, fluid-structure interaction, pitch, heave, vibration response

摘要： 为实现船舶节能减排,该文结合KVLCC2船舶参数及航行工况设计了一种可铺设于甲板的船用太阳能光伏柔性支架,并开展振动响应特性分析,采用流固耦合解耦计算方法研究风载荷及船舶纵摇、垂荡运动对柔性支架振动响应特性的影响。研究表明：钢索振幅及平均内应力在船舶纵摇工况下最大,对柔性支架产生不利影响,纵摇+垂荡的工况次之,垂荡工况下最小;结构应力极大值出现在钢索固支边界处,若外载荷进一步增大,将最早产生塑性形变;柔性支架中部钢索应力均值及振幅最大,在循环应力应变作用下可能发生疲劳破坏。以上结论可为船用太阳能光伏柔性支架的设计制造及日常使用提供一定的技术支撑。

关键词: 太阳能光伏, 柔性支架, 流固耦合, 纵摇, 垂荡, 振动响应