一、引言在设计离岸式建筑物时,一个重要的问题就是根据实测或推算的波浪资料计算最大设计波浪。目前进行此项计算所应用的方法都基于古典的统计概念,它一般包括以下三个步骤: (1)选用一已知的概率密度函数描述其有关变量,如三小时一次的有效波高、年最大波高等长期分布情况。(2)利用累积曲线法或矩法、极大似然 I. INTRODUCTION When designing offshore structures, an important issue is to calculate the maximum design wave based on measured or calculated wave data. The methods used to perform this calculation are based on the classical statistical concept. It generally includes the following three steps: (1) Select a known probability density function to describe its relevant variables, such as effective wave height for three hours and annual maximum. Waves and higher levels of long-term distribution. (2) Using cumulative curve method or moment method, maximum likelihood