基于ANSYS的透空式防波堤波浪力计算

采用文氏谱模拟芦潮港渔港的随机波浪,确定透空堤上部结构水平波浪力、桩基水平波浪力及上托力,推导计算出100 a一遇极端水位下的力谱值。继而利用有限元和动力响应基本原理,采用有限元软件ANSYS对透空堤进行数值模拟,从静力分析、模态分析和功率谱密度分析角度出发,对比挡浪板双侧受力和单侧受力的结果,得出双侧挡浪板桩基透空堤结构形式的合理性;分析各部位的安全隐患,结合静力计算结果与动力计算结果差异,为设计提供参考。

Wave force calculation of permeable breakwater based on ANSYS

Using Wallops spectrum simulation of random wave in Luchao harbor,we determine the horizontal wave force of the upper structure of penetrated breakwater and pile foundation and uplift force,and derive and calculate the power spectrum value under one-in-100-year extreme wave condition.Based on the basic principle of finite element and dynamic response and using finite element software ANSYS,we carry out numerical simulation on the penetrated breakwater.From the static analysis,modal analysis and power spectral density analysis,we compare the results of breakwaters in bilateral and unilateral stress forces,and obtain the rationality of bilateral-wave-board piled permeable breakwater structure.Analyzing the hidden danger,and combining the differences of the static and dynamic calculation results,we may provide reference for the design.