船舶动力定位海浪环境的实时仿真与海浪谱分析

Real-time Simulation and Spectrum-Analisis of a Dynamic Positioning System Ship in Waves

提出一种根据随机海浪频谱来实时模拟随机海浪的方法 ,它可以用于研究动力定位船舶及其控制系统在不同海况时的性能。该方法可以采用多种海浪谱来进行随机海浪的仿真。仿真结果利用了快速傅立叶变换FFT(FastFourierTransform)进行频谱分析。仿真程序可用于实际的动力定位船舶系统。

Provides a way to simulate waves in real time according to random wave spectrum.It can be used to study the performances of dynamic positioning ship and control system under different waves.This method adapts several kinds of wave spectrum to simulate waves.The results of simulation apply FFT(Fast Fourier Transform) to analyse the spectrum.The program has been applied to DPS (Dynamic Positioning System) ships.