motion of pitching and heaving的意思|示意

The pitching and heaving motions of a catamaran are calculated with the STF method, as well as the statistic characteristics of motion in the irregular waves.

采用STF方法计算船舶的纵摇和垂荡运动及船舶在不规则波中的统计特性，计算与试验相比较，结果令人满意。

In this paper, by analyzing the forces on hydrofoil catamaran, the mathematical model of its heaving and pitching motion is proposed.

从高速水翼双体船受力分析的角度，提出了其静水中垂荡和纵摇运动的数学模型，其中对水翼所产生的升力进行了较为详尽的分析。