期刊名称：International Journal of Marine Engineering Innovation and Research
印刷版ISSN：2541-5972
电子版ISSN：2548-1479
出版年度：2020
卷号：5
期号：2
页码：68-80
DOI：10.12962/j25481479.v5i2.5549
语种：English
出版社：Institut Teknologi Sepuluh Nopember
摘要：the wave energy conversion system is one of the technology innovative used in the researches of alternative power plants at sea. It receives environmental loads such as wave,wind,and current during its operation. In order to be able to rotate the pendulum and produce electricity,it is designed with a hexagonal-shaped ponton with three floaters on its sides to increase the rotational motion of the ponton. These floaters are connected to the ponton by the arm,identically distant from one another. The mooring system used in this research is designed to allow it to still move and rotate the pendulum while keeping the platform from capsizing. This research is discussing the difference of motion response between three variations of wave energy conversion system designs,Variation 1 that is designed with floaters,Variation 2 with shortened floater arms,and Variation 3,which have no floaters,by comparing their RAOs (Response Amplitude Operator),to figure out which design is the most responsive when the collinear load from heading 0o,30o,60o,90o,and 120o is acting on it. This research reveals that model Variation 1 is the most optimal because it has relatively higher values of RAOs,and the motion response of the ponton is still apparent after the mooring system is installed. The highest RAO in free-floating condition for 6 degree of freedom surge,sway,heave,pitch,roll,and yaw are 1,949 m/m frequency 0,1 Rad/s heading 0o,1,6 m/m frequency 1,7 Rad/s heading 60o,0,998 m/m frequency 0,1 Rad/s heading 0o,22,13 Deg/m frequency 1,8 Rad/s heading 60o,21,7 Deg/m frequency 2 Rad/s heading 0o,and 77,212 deg/m frequency 1,8 deg/m heading 0o consecutively. The furthest excursion is at 5,1 meters along with the x-axis 0o load,while the shortest excursion is 1,5 meters along with the y-axis 120o load. The highest Roll motion reached 62,5o along the x-axis 90o load while pitch motion reached 15,5o along with the y-axis 120o load.
关键词：hexagonal ponton;motion;rao;wave energy conversion system
