CAJ | 학술논문

为了研究海上大尺度复合筒型基础的拖航动力特性，采用水动力学软件MOSES模拟海上风电复合筒型基础结构现场气浮拖航的运动情况。模型采用基础原型尺寸，通过模拟现场海域5和6m吃水条件下的基础拖航情况，详细分析了复合筒型基础拖缆力、位移、加速度、筒内气压力等相关动力特性因素。同时，通过变换关键变量，分析了不同的拖缆点和波浪条件对基础极限动力特性的影响。结果表明：具有合理分舱的复合筒型基础具有稳定的自浮拖航浮运特性，拖航过程中筒内气体压力变化较小，拖缆点在水线附近拖航阻力最小。复合筒型基础可自浮拖航的特性使其运输施工过程不需要使用大型设备，可大大节约成本，具有很强的竞争性。
위료연구해상대척도복합통형기출적타항동력특성，채용수동역학연건MOSES모의해상풍전복합통형기출결구현장기부타항적운동정황。모형채용기출원형척촌，통과모의현장해역5화6m흘수조건하적기출타항정황，상세분석료복합통형기출타람력、위이、가속도、통내기압력등상관동력특성인소。동시，통과변환관건변량，분석료불동적타람점화파랑조건대기출겁한동력특성적영향。결과표명：구유합리분창적복합통형기출구유은정적자부타항부운특성，타항과정중통내기체압력변화교소，타람점재수선부근타항조력최소。복합통형기출가자부타항적특성사기운수시공과정불수요사용대형설비，가대대절약성본，구유흔강적경쟁성。
In order to study the towing dynamic properties of the large-scale composite bucket foundation the hydrodynamic software MOSES is used to simulate the dynamic motion of the foundation towed to the construction site.The MOSES model with the prototype size is established as the water draft of 5 and 6 m under the environmental conditions on site.The related factors such as towing force displacement towing accelerations in six degrees of freedom of the bucket foundation and air pressures inside the bucket are analyzed in detail.In addition the towing point and wave conditions are set as the critical factors to simulate the limit conditions of the stable dynamic characteristics.The results show that the large-scale composite bucket foundation with reasonable subdivisions inside the bucket has the satisfying floating stability.During the towing process the air pressures inside the bucket obviously change little and it is found that the towing point at the waterline is the most optimal choice.The characteristics of the foundation with the self-floating towing technique are competitive for saving lots of cost with few of the expensive types of equipment required during the towing transportation.