CAJ | 학술논문

为了探求风浪流成长全过程对应的单点系泊FPSO低频响应极值，应用三维势流理论及非线性时域耦合分析方法，研究了单点系泊FPSO低频运动响应与风浪流入射角度之间的关系，得出了给定风浪流大小前提下最危险的入射角度，计算了风浪流载荷在发展、顶峰、消亡各不同阶段对应的船体低频运动响应极值。结果表明：单点系泊FPSO低频响应与风浪流入射角度密切相关，且响应最大值可能并不出现在有义波高、风速、流速最大的顶峰时期，而可能出现在有义波高、风速、流速较小但风浪流入射角度呈强非线性的发展或消亡阶段。因此，在研究单点系泊FPSO的低频响应极值时，必须考虑风浪流成长过程中的发展和消亡阶段。文中考虑了易被忽略的风浪流成长过程中入射角度呈强非线性的发展和衰亡阶段，为单点系泊FPSO低频响应特性的分析提供了有益参考。
위료탐구풍랑류성장전과정대응적단점계박FPSO저빈향응겁치，응용삼유세류이론급비선성시역우합분석방법，연구료단점계박FPSO저빈운동향응여풍랑류입사각도지간적관계，득출료급정풍랑류대소전제하최위험적입사각도，계산료풍랑류재하재발전、정봉、소망각불동계단대응적선체저빈운동향응겁치。결과표명：단점계박FPSO저빈향응여풍랑류입사각도밀절상관，차향응최대치가능병불출현재유의파고、풍속、류속최대적정봉시기，이가능출현재유의파고、풍속、류속교소단풍랑류입사각도정강비선성적발전혹소망계단。인차，재연구단점계박FPSO적저빈향응겁치시，필수고필풍랑류성장과정중적발전화소망계단。문중고필료역피홀략적풍랑류성장과정중입사각도정강비선성적발전화쇠망계단，위단점계박FPSO저빈향응특성적분석제공료유익삼고。
To explore the low frequency extreme response of single-point moored FPSO during the whole process of growing of wind/wave/current,three-dimensional potential flow theory and nonlinear time domain coupled analysis method was applied,the relationship between incident angle of wind/wave/current and low frequency motion re-sponse of single-point moored FPSO was investigated,low frequency extreme response of single-point moored FPSO during the whole process of growing of wind/wave/current was studied.The results show that the low frequency motion response is related to the incident angle of the wind/wave/current,and the biggest low frequency motion re-sponse maybe not appear in peak stage,but appear in development or decay stage.Therefore,in the study of low frequency motion response of single-point moored FPSO,one must consider the development or decay stage.It of-fers an important reference to single-point moored FPSO hydrodynamic performances analysis.