| 1. | Real - time simulation and spectrum - analisis of a dynamic positioning system ship in waves
船舶动力定位海浪环境的实时仿真与海浪谱分析 |
| 2. | The realization of the ship ' s dynamic positioning system plays an important role for enhancing the development and popularization of our country ' s ship building industrial products and technology with high additional value
船舶动力定位系统的实现对于提高我国造船工业中的高附加值产品技术的开发和推广都有着十分重要的理论意义与实用价值。 |
| 3. | This paper researches the basic components of ship ' s dynamic positioning system and the solution schemes of its control system , and provides a reference basis for the practicality of the dynamic positioning system
本文研究了船舶动力定位系统的基本组成及其控制系统的解决方案，为哈尔滨上程人学博士学位论文动力定位系统的实用化提供了可借鉴的参考依据。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | The dynamic positioning technique has been developed for more than 30 years and has formed a high scientific industry that promotes the corresponding scientific researches abroad . in our country , the development of the dynamic positioning technique in most researching units is still in the theoretical or experimental research stage . it is only the group to which the author belongs that has finished the first internal dynamic positioning system that makes the dynamic positioning technique from theory to practice
在国外，动力定位技术已经发展了三十多年，形成了高科技的产业，促进了相应科学研究的发展；在国内大多数单位的动力定位技术研究尚处于理论或实验研究阶段，仅有作者所在的课题组于1997年完成了国内第一套装备实船的船舶动力定位系统，使得动力定位技术从理论研究走向了实用。 |
| 9. | 2 . to meet the demands of establishing a practical control system , this paper analyzed the main sensors " construction , performance , and work theory in a dynamic positioning system , discussed the output format of the sensors " signals and the feature of the signals " noise , introduced the common thrusters , and established the thruster ' s mathematics model
2 )为满足建立实际控制系统的需要，分析了动力定位系统主要传感器的构成、性能和工作原理，讨论了传感器信号的输出形式及信号噪声的特点，介绍了常用推进器，建立了推进器数学模型。 |
| 10. | This paper is the theoretical summary of the development around the dynamic positioning system by the writer , which includes several aspects of the studies as follows , 1 . in allusion to the feature of zero - speed of the ship in positioning control process , the dynamic mathematics model of the ship ' s movement has been established , which fits to the dynamic positioning , and the mathematics model of the environment of sea and ocean which disturbs the ship in dynamic positioning , which has founded the base of further study
本文是作者以rov工作母船为背景，围绕动力定位系统的开发工作所做的理论研究工作，主要包括以下几个方面的研究工作： 1 )针对处于定位控制的船舶工作在零航速附近的特点，建立了适合于船舶动力定位系统研究用的船舶低频运动模型，为满足控制器设计的需要，建立了船舶高频运动模型和海洋环境作用模型，为以后的分析奠定了基础。 |
