The dynamic positioning system is a closed loop control system which resists against the disturbance by wind, wave, and current with the help of thrusters on the vessel.
动力定位系统是一种闭环控制系统，采用推力器来提供抵抗风、浪、流等作用在船上的环境力，从而尽可能使船舶保持在海平面要求的位置上。
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.
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。
And the static and dynamic systems of Servo system affect positioning speed, positioning accuracy and machining accuracy of numerical control machine tool directly.
而伺服系统的静态、动态性能直接关系数控机床的定位速度、定位精度和加工精度。
And the static and dynamic systems of Servo system affect positioning speed, positioning accuracy and machining accuracy of numerical control machine tool directly.
而伺服系统的静态、动态性能直接关系数控机床的定位速度、定位精度和加工精度。
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