【摘要】 本文应用交叉双谱分析方法,在考虑波浪非线性的条件下,给出系统二阶传递函数的数学表达式,通过模拟计算和模型试验证明了其正确性。根据所得到的表达式,分析了波浪的线性假定对估算二阶传递函数的影响程度,结果表明,该假定在工程上是可以接受的。更多还原

【Abstract】 In this paper an expression of quadratic transfer function for irregular waves, derived with the technique of crossbispectral analysis, is presented, which is verified by simulated calculations and model tests. According to the expression, the effect of linear assumption of irregular waves on the accu racy of quadratic transfer function calculation is studied. It shows that the linear assumption is acceptable in engineering practice.更多还原