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应用边界元方法，对双频入射波在和频及差频下的二阶速度势做了完整的求解，通过物面积分计算了任意三维结构上的二阶波浪力的传递函数．对简单几何物体，与发表的结果做了对比，两者吻合良好，验证了本方法的正确性．应用这一方法还对复杂的张力腿平台模型做了实际计算，发现在低频和高频区二阶波浪力平方响应函数有着显著的能量分布．
By using the boundary element method, the second-order velocity potential of the dual-frequency incident wave at the sum frequency and the difference frequency is completely solved. The transfer function of the second-order wave force on any three-dimensional structure is calculated by the object surface integral. Compared with the published results of simple geometric objects, the two are in good agreement, which verifies the correctness of this method. This method is also used to calculate the complex tension leg platform model. It is found that there is a significant energy distribution in the squared response of second-order wave forces in the low and high frequency regions.