It is requisite to employ the dynamic positioning system with fine performance in the work of maritime development , inshore engineering support , underwater work support , and so on , if the ship needs keeping fixed position or sailing along a desired track in the work 海洋开发、近海工程支持、水下作业支持等项工作如果要求船舶保持作业地点固定不变或按照预定的轨迹航行,就需要有性能良好的动力定位系统。
Another vital technology is the chikyu ' s dynamic positioning system , an automatic , satellite - guided location fixer that corrects against wind , wave and current forces with six 360 - degree thrusters under the hull , keeping the ship over the borehole 地球号另一个重要的技术则是动态定位系统,这是一个利用卫星导航的自动定位器,并且校正了风速、海浪与船底的六个360度推进器产生的力量,使船可以一直维持在钻孔的上方。
The marine environmental forces acting on the vessel are the wind , the current and the waves . the motion control system of a dynamic positioning system is a nonlinear , coupling , time - delay complicate system . it ' s difficult to control the system effectively using the conventional control method 动力定位船舶在海上受到风、浪、流的干扰,其运动具有很强的非线性、耦合性和大时滞性,采用常规的控制方法很难获得令人满意的控制效果。
5 . according to the non - linear and time variant feature of the object under control in dynamic positioning system , a controller for dynamic positioning system is designed , and a strong robust self - learning fuzzy - sliding mode controller is produced , which enhanced the performance of the control system 5 )根据动力定位系统被控对象非线性和时变的特点,设计了动力定位系统控制器,提出了一种强鲁棒性的自学习模糊变结构控制器,提高了控制系统的性能。
At present people need increasing for high quality vessels with dynamic positioning ( dp ) systems , with exploiting sea ' s resources into deepwater . it impels researchers to study and develop hi - new technique continuously , so that the demand is satisfied in civil and military fields 随着人们对海洋的开发向深海进军,对船舶动力定位系统的需求越来越大,要求也越来越高,这就促使科技工作者进行新的技术研究和开发,以满足在民用领域和军事领域的需求。