Design And Test Of Fin Stabilizer Loading System

The fin stabilizer loading system is the equipment for simulating the water' s power exerted on the fin stabilizer. Its function is to simulate different water' s movement forces exerted on the fin stabilizer on different position so as to detect technical function index of the fin stabilizer. Thus lots of time and funds can be saved, reliability and success proportion can be raised. With computer technology' s development, the digital control is the trend of the electro-hydraulic loading system. Because fin stabilizer loading system is a typical passive loading system, the large surplus force caused by the fin stabilizer displacement seriously affects the static and dynamic of digital performances of the loading system. It is the major task that how to take the advantage of digital control technology and use control algorithm to eliminate the surplus force as could as possible, and enhance the loading characteristics.Firstly, After analyzing the generated mechanism of surplus power, it can be found that surplus power affects the capability of loading seriously. Secondly, according to the classical control theory, analyzes the capability of system and adopts PID and interfere compensation to eliminate the effects of the surplus power. Lastly, analyze the experimental data of static and dynamic loading experiments.