摘要：Aeroelastic problems are encountered at the preliminary design stage of flexible wings for large aircraft. A three-dimensional finite element model of a high-aspect-ratio wing was built, and the influence of the front and rear spar positions on the results of the aeroelastic analysis and optimization was studied to improve the wing structure desgin. The most feasible and optimal solutions were effectively obtained by aeroelastic optimization. In particular, the position parameter of the front spar has a greater influence on the aeroelastic analysis and optimization than the rear spar. In addition, some key constraints became re- strictive leading to a rapid increase in the structural weight. Therefore, reasonable constraints were necessary for the optimization of results.

摘要：为了研究螺旋侧板及其各设计参数(螺旋侧板片数、高度、螺距比)对浮式风机spar平台动态响应的影响,建立附加螺旋侧板的spar平台浮式风机整机模型。基于数值模拟和有限元方法,结合正交试验设计方法研究螺旋侧板及其各设计参数对浮式风机spar平台动态响应的影响,并与不附加螺旋侧板的spar平台进行对比。研究结果表明:螺旋侧板可明显抑制浮式风机spar平台的垂荡、纵摇运动响应,对纵荡运动响应影响不大;在所设定的螺旋侧板各设计参数范围内,片数为2、高度为15%D(D为spar主体直径)、螺距比为5为较佳的螺旋侧板设计参数组合;螺旋侧板高度和螺距比是优化spar动态响应的最关键设计参数。

摘要：To solve the dimensional limitations of physical models in tests, an equivalent water depth truncated design for a classical spar working in 913 m water was investigated. The water depth was reduced to 736m and then to 552m. As this was done, the mooting line lengths, EA value, and mass per meter were adjusted. Truncation rules and formulas for parameters and truncation factors were proposed. spar static characteristics were made to be consistent with those at full water depth. Then further time-domain coupled analysis was carried out for the spar when the mooting system experienced waves. The mooring lines were simulated by quasi-static method. Global responses and mooring line forces were found to agree well with test results for a prototype at that water depth. The truncation method proved to be robust and reliable.

摘要：The authors analyzed requirements for a new deepwater platform, from conceptual design to hydrodynamic *** design incorporated Deep Draft Multi-spar (DDMS) that allowed easy fabrication, reduced costs, and provided favorable motion *** also provided a dry tree system and other *** conceptual design process included dimension estimation, general arrangements, weight estimation, weight distribution, stability analysis, etc.A high order boundary element method based on potential theory and the modified Morison equation was used to predict the hydrodynamic and viscous effects of this new concept *** response amplitude operators (RAOs) were acquired and compared with those of a typical Truss *** response of the platform to the JONSWAP spectra of 3 different extreme ocean conditions was analyzed to evaluate the seakeeping ability of the new *** results revealed favorable motion performance due to all the degrees of freedom available.

摘要：Truss spar平台是当今spar平台的主流形式。由于Truss spar平台主体结构的特殊性,致使其滑移装船工程设计具有一定的特殊性。该文依据NOBLE DENTON指导性文件,从Truss spar结构特点出发,对与平台装船相关的船舶滑道设计、滑靴设计、系泊设计、调载方案设计、泵和拖拉设备的选型等进行了研究,提出了需要关注的关键性技术问题,为今后Truss spar平台主体结构的滑移装船设计提供参考。

摘要：以OC3 Hywind spar基础浮式风机为研究对象,采用先进的空气动力-水动力耦合时域分析方法,对其在中国南海某海域风浪流共同作用下的系泊系统、浮式基础运动以及风机和塔架载荷响应进行分析,对比定常风与湍流风模型对浮式风机系泊系统、整体运动响应以及风机载荷的影响。计算结果表明:相比于湍流风,采用定常风进行浮式风机系泊系统分析将得到偏于危险的结果,并且,浮式风机运动响应与风机载荷结果偏小。因此,建议在系泊系统初始设计阶段采用定常风方法进行设计,在系泊分析阶段采用湍流风进行分析,以保证浮式风机的长期服役安全。

摘要：平台的稳定性是海上漂浮式风力机安全运行的基本保障。研究两种新型系泊型式对海上漂浮式风力机spar平台动态响应的影响及系泊的安全性。建立基于OC3-Hywind spar Buoy平台的NREL(美国国家可再生能源实验室)5 MW漂浮式风力机整机模型,综合考虑叶片空气动力载荷、平台的波浪载荷及平台与系泊系统的耦合。首先,验证水动力学模型的可靠性,然后分析平台在不同风浪下的时域动态响应,并评估其生存能力。结果表明:两种新型系泊型式均能大幅减小纵荡响应,对纵摇响应影响很小;型式Ⅰ对纵荡响应的抑制小于型式Ⅱ,且二者对纵荡的抑制作用随系泊间夹角的增加而减小;型式Ⅲ-30°系泊在完整状态下的安全系数大于1.67,破损状态下大于1.33,均满足设计要求。

摘要：提出了一种新型深吃水多立柱式平台DDMS(Deep Draft Multi-spars),介绍了DDMS平台的创新概念,并描述了平台的交互式设计方法和设计流程。使用基于绕射和辐射理论的高阶边界元方法,得到了平台波频激振力和水动力系数,在频域获得了幅值响应算子RAO。利用平均波浪漂移力和Newman近似方法预报了平台的二阶波浪慢漂激振力,在时域进行了DDMS平台运动响应的数值模拟。计算结果验证了DDMS平台设计的合理性,显示了平台良好的运动性能。

摘要：为替代全水深系统进行混合模型试验,设计了等效水深截断系统。同时考虑总系泊系统以及具有代表性的单根系泊缆静恢复力特性相似,采用改进的变尺度混沌算法对等效水深截断系泊系统进行优化计算。选取了一工作水深为1500m的新型单柱式(spar)平台,对其截断水深为700m的等效截断系泊系统进行优化设计,数值试验结果表明,截断系统的设计是合理的、可靠的。

摘要：在南海百年一遇海况条件下,综合考虑风、浪、流载荷的联合作用,在频域范围内计算平台的纵摇和横摇极值响应以及锚缆的张力。根据不同浪向下的结构应力谱分析确定的设计波参数,基于三维势流理论和Morison公式计算一阶波浪力,采用规范推荐的公式计算风、流载荷。在准静力条件下,根据ABS规范推荐的强度准则,针对精细化的混合有限元结构模型进行总体强度分析。