CAJ | 학술논문

平台的稳定是海上漂浮式风力机能够安全运行的最基础保障。通过建立基于驳船式平台的海上风力机整机模型，采用有限元方法，研究了漂浮式风力机驳船式平台在风、浪、流3种环境载荷联合作用下的时频域动态响应。通过漂浮式风力机驳船式平台在时域和频域内的变化幅度来分析平台的动态响应特性，得到了波浪力即 F－K 力和绕射力对平台六自由度运动的贡献以及各波浪力随频率的变化趋势。结果表明：平台幅值响应算子和平台所受波浪力均在低频波浪作用下出现较大响应；平台在纵荡、垂荡和纵摇方向的运动响应较之其他3个方向更加明显。
평태적은정시해상표부식풍력궤능구안전운행적최기출보장。통과건립기우박선식평태적해상풍력궤정궤모형，채용유한원방법，연구료표부식풍력궤박선식평태재풍、랑、류3충배경재하연합작용하적시빈역동태향응。통과표부식풍력궤박선식평태재시역화빈역내적변화폭도래분석평태적동태향응특성，득도료파랑력즉 F－K 력화요사력대평태륙자유도운동적공헌이급각파랑력수빈솔적변화추세。결과표명：평태폭치향응산자화평태소수파랑력균재저빈파랑작용하출현교대향응；평태재종탕、수탕화종요방향적운동향응교지기타3개방향경가명현。
The stability of platform structure is the most basic guarantee for safety operation of offshore wind turbines.A whole machine model was built based on the ITI energy barge platform to research the time-domain dynamic response and frequency-domain performance under certain wind,wave and current conditions.Dynamic responses of the platform structure were analyzed under the time-varying conditions of structure amplitude and wave frequency.The contribution of F-K force and diffraction force to the structure with six degrees of freedom movement as well as the changing tendency of the wave force along with the change of frequency were analysed.The results show that the response amplitude operator (RAO)of platform and the wave force acting on platform are prone to get large under low frequency wave action.The structural responses in the heave,surge and pitch directions are obvious than those in the other three directions.