重荷载水上光伏平台结构分析

Analysis of structure of photovoltaic platform on water under heavy load

以安徽某水上光伏平台项目为分析对象,针对重荷载作用下的水上漂浮平台的结构承载力、刚度和稳定性进行研究,建立了箱变平台的三维模型,利用有限元系列软件ANSYS和AQWA对箱变平台进行数值仿真.由静力学计算可知,平台在其中心位置处位移最大,通过缩短中心位置处浮体装置间距的方法,可以有效地提高平台的整体刚度;平台的最大等效应力发生在钢架与其上部设备接触的部位.由动力学计算得到了平台的晃动角度、晃动位移以及平台的整体受力情况,解决了漂浮平台在环境荷载作用下运动响应等方面问题.

This paper studies the structural strength,stiffness and stability of floating platforms under heavy loads according to an aquatic photovoltaic platform project in Anhui.A three-dimensional model of the platform has been built to perform numerical simulations using finite element software ANSYS and AQWA.From the static calculations,it can be seen that the platform has the largest displacement at its center position.The stiffness of the platform can be effectively improved by shortening the distance between the floats at the center position.The maximum equivalent stress of the platform occurs at the contact point between the steel frame and its upper equipment.The sloshing angle,sloshing displacement and the force of the platform are calculated from the dynamic calculation;and the problem of the floating platform’s motion response under the environmental load is solved.