Numerical simulation of sediment deposition thickness at Beidaihe International Yacht Club

The finite element method （FEM） was used to simulate sediment hydrodynamics at the Beidaihe International Yacht Club, and a two-dimensional model was established. The sediment movement and deposition were analyzed under many tidal conditions in conjunction with the hydrological regime of the Daihe River. The peak value of the sediment deposition thickness appears in the main channel and around the estuary. The sediment deposition thickness is essentially constant and relatively small in the project area. The sediment deposition thickness in the main channel, in the yachting area, and around the hotel is greater than the other areas in the project. Regular excavation and dredging of the channel is the best measure for mitigating the sedimentation.

Physical Properties and Exchange System of Seawater in Royal Yacht Club Marina in the Northernmost Gulf of Aqaba

This research was aimed at studying the general environmental status of the marina at Royal Yacht Club (RYC), which is located in the Jordanian Gulf of Aqaba. The physical properties (temperature, salinity and density) were measured at surface and bottom water at 19 sites (T1 - T19). Total hydrocarbon was measured at surface at 12 sites (HC1-HC12). The water exchange and residence time were calculated using data of current speed and direction at 16 sites (C1 - C16). The mean values of temperature, salinity and density at surface and bottom waters in the RYC’s marina were 27.13°C ± 0.03°C, 40.51 ± 0.02 psu and 26.83 ± 0.02 kg·m-3, respectively. The results of physical parameters revealed no significant differences among sites, which are all comparable with open waters. The measurements range of total hydrocarbon in the marina was 1.404 mg/l (at site HC11) to 98.56 mg/l (at HC9). In general, all the high values of total hydrocarbon were found at the corners of the marina and at areas with relatively intense boats’ movements. There was no correlation between distribution of total hydrocarbon and temperature (R2 = 0.048;p = 0.49) in the marina. Therefore, the major factors that influence the distribution of total hydrocarbon within the marina are the current system and boats’ movements as well as the location reference to the gate. The residence time of waters inside the marina was 1.32 days. This flushing time is acceptable to secure good environmental conditions inside the marine to avoid stagnant seawater. The mean value of current speed at the RYC’s marina gate with open water was 5.33 ± 2.63 cm/s, which is relatively comparable with current speed in vicinity of study area. In conclusions, the environmental condition of the RYC’s marina is acceptable in term of the residence time and exchange system with open water. Slightly high values of total hydrocarbon were detected, which can be solved by regular cleaning.

Application of Feature Curves and Shape Blending on Yacht Designing

The global yacht market share and industry might expand continually since increasing people are willing to enjoy the yacht life in lower price nowadays while yacht activities were regards as a luxury acitivity in the past.Additionally,Taiwan Residents yacht manufacturers are well-known worldwide.They show excellent performances on the international annual rankings which implies Taiwan has excellent manufacturing technologies.However,Taiwan Residents manufacturers so far do not have a mature local design team.Therefore,this study goals to developing a systematic and objective design method for hull designing,which facilitates designers to design innovative yachts or create a series product with brand recognition.This study is divided into three parts:the first part is the investigation of the yachts market;the second is establishing a shape blending platform;the third is 3D forming.Finally,it is used the existing ship CAD software to design an innovative yacht based on the blended curves and then calculates its basic hydrostatic performance.This study provides a quantitative method to create a new form and to preserve the features for a brand.The exist yacht combines with other graphics to create a new form and maximizes the features of the original graphics.

46 Motor Yacht海上别墅

开放,明媚的大海。宽广,慵懒的河流。波光粼粼,银色的湖泊。当你有机会在水上花时间——那么你惯常的想法就将被永远的改变以。一旦你了解到在海上生活的无限乐趣,那么你千万不要错过了生活中这些美妙的享受。在这里,或许Carver卡福游艇将带你实现!

Numerical Simulation of Multi-Directional Random Wave Transformation in a Yacht Port

This paper extends a prediction model for multi-directional random wave transformation based on an energy balance equation by Mase with the consideration of wave shoaling, refraction, diffraction, reflection and breaking. This numerical model is improved by 1) introducing Wen's frequency spectrum and Mitsuyasu's directional function, which are more suitable to the coastal area of China; 2) considering energy dissipation caused by bottom friction, which ensures more accurate results for large-scale and shallow water areas; 3) taking into account a non-linear dispersion relation. Predictions using the extended wave model are carried out to study the feasibility of constructing the Ai Hua yacht port in Qingdao, China, with a comparison between two port layouts in design. Wave fields inside the port for different incident wave directions, water levels and return periods are simulated, and then two kinds of parameters are calculated to evaluate the wave conditions for the two layouts. Analyses show that Layout I is better than Layout II. Calculation results also show that the harbor will be calm for different wave directions under the design water level. On the contrary, the wave conditions do not wholly meet the requirements of a yacht port for ship berthing under the extreme water level. For safety consideration, the elevation of the breakwater might need to be properly increased to prevent wave overtopping under such water level. The extended numerical simulation model may provide an effective approach to computing wave heights in a harbor.

船舶阻力预测几种理论的深度探讨

随着世界经济的全球化发展,海运运输成为一种经济实用的运输方式。海运运输的发展离不开各种各样的船舶。船舶在水中行驶时,由于海水是黏性液体,因此会受到阻碍作用,故而会产生船舶阻力。为了提高船舶在海水中行驶的速度,同时降低燃油消耗,因此需要对船舶阻力进行计算。船舶的种类不同,其型线就不同。型线不同自然导致其与水的接触面积不同。因此,针对不同船型的种类,其船舶阻力的计算方法也是不同的。预测船舶阻力的计算方法可以按照船体类型划分为不同的计算类型,分别有适用于滑行艇阻力预测的算法、适用于排水型船舶阻力预测的算法、适用于游艇阻力预测的算法以及细长体理论。探讨结果说明,不同算法和理论适用于不同的船体类型,也有其特定的适用范围。

自贸港框架下海南游艇产业发展策略研究

本文从游艇产业近年来的政策入手,分析海南游艇产业的发展现状,找到其存在的问题,如市场活力不足、营商环境不优、专业人才匮乏,并提出加快海南游艇码头设施建设、提高游艇产业服务能力、拓宽游艇产业融资渠道、加大游艇人才培养力度等相关对策建议,希望能有助于海南游艇产业的发展。

国际视角下海南游艇旅游目的地的动力、困境与突破对策探析

海岛旅游经济发展步入正轨,海南特色旅游服务、游艇旅游产业链日益完善,为海南游艇旅游目的地的国际化发展奠定了良好的发展基础。通过分析和阐释国内外游艇旅游目的地及海南近年来游艇旅游产业的发展概况,利用国际视角剖析了海南省在发展游艇旅游目的地方面的瓶颈和独特优势,厘清了新型冠状病毒感染影响、制度和监管措施、消费观念和文化、综合配套滞后、产业链不健全等发展的外部环境阻碍因素以及海南自贸港“零关税”等多维叠加政策优势、得天独厚的区位优势、资源禀赋的旅游优势和RCEP生效之后国际商贸等方面的消费市场创新和影响因素。经过实地深入调研、远程视频访谈和数据挖掘与分析,预测并提出了海南游艇旅游目的地发展新动能、新模式、消费新趋势。通过重点对海南游艇旅游目的地的开发进行综合分析与评估,得出海南应充分发挥比较优势,紧抓“建设具有世界影响力的中国特色自由贸易港”的历史机遇,不断优化营商环境,加大政策扶持力度,创新发展思路和投融资渠道,通过科技创新和构建新的管理机制,对标国际一流游艇旅游目的地,拓展产业链、供应链、人才链、资金链与创新链,加快推进游艇旅游产业转型升级,促进海南海洋经济高质量发展的结论建议。

游艇超过核定乘员航行法律适用问题研究

新修订的《海上交通安全法》自2021年9月生效以来,对游艇各类违法行为规定了严格的法律责任,增加了游艇所有人和游艇操作人员的违法成本。然而游艇监管的发展与我们所期待的法治化还存在一定差距,海事部门对于游艇航行时超过乘员定额的情形应当如何实施行政处罚存在较多理解争议,论文就如何合理运用《海上交通安全法》妥善解决当前海事执法实践中的争议展开研究。

Yacht—A New Urban Leisure Fashion

China (Xiamen) International Boat Show 2011 boosts the development of the coastal city With the theme of "Yacht-A New Urban Leisure Fashion",China(Xiamen)

Good Maintenance Preserves The Value of Yachts Xiamen Marina Boats Servicing Center introduced specialist service of Italy

Wuyuan Bay marina is the rising star as a yachting sports and leisure center in Xiamen City, southeast China’s Fujian Province. China (Xiamen) International Boat Show 2011 was held between

YACHT STYLE 当时尚“下海”

对于一个女人来说,拥有世界顶级的时尚奢侈品,可能是人生中最快乐的事情之一;对于一个男人来说,拥有能够征服浩瀚大海的高品质游艇,可能是人生中最拉风的事情之一。在这个从不缺少快乐和拉风的世界里,跨界成为最时髦的享受方式,而一旦跨界联姻的双方是时尚品牌和游艇,那一定会碰撞出让女人和男人都为之神往的火花。

含观光筒的复合材料游艇直接计算方法研究

文中以一具有底部观光筒体的复合材料游艇为研究对象,对比分析规范计算方法和SESAM设计波方法对含观光筒复合材料小艇设计载荷计算结果的区别,结果表明:相较于规范方法,设计波方法在计算船体设计载荷时可充分考虑船体结构形式的影响,在对含观光筒的船舶载荷进行计算时应采用设计波方法.此外,在SESAM计算载荷的基础上对含观光筒复合材料结构强度进行了直接计算,并采用最大应变衡准对船体结构强度进行校核,结果表明:强度校核时的计算应变与许用应变的比值在60%以内,本文计算的含观光筒复合材料船体结构的强度安全裕度较大.

基于1+X证书制度的模块化课程体系构建——以游艇设计与制造专业为例

基于1+X证书制度,科学定位人才培养目标,准确对接岗位能力,构建与职业技能等级证书相结合的游艇设计与制造专业课程体系,是实现高素质复合型技能人才培养目标的有效途径。以渤海船舶职业学院游艇设计与制造专业为例,在分析游艇设计与制造专业课程体系改革背景及意义的基础上,探索如何将职业技能等级证书考核内容嵌入专业人才培养整个过程,构建模块化的全新课程体系。

基于感性工学的飞桥游艇造型灰关联度研究

目的为探究飞桥游艇造型演变趋势及各造型要素的重要度排序,提高产品造型设计的效率。方法提出1种基于感性工学(Kansei Engineering)及灰关联模型的游艇造型设计方法。通过收集飞桥游艇样本及感性语汇,应用因子分析及聚类分析对飞桥游艇造型演变的阶段进行划分,提取其中1个阶段较新的27个样本的结构线并归纳总结,应用灰关联模型得到不同感性语汇下飞桥游艇各造型要素的重要度排序。结果设计师可以根据所得的各造型要素重要度决定不同感性语汇下设计的优先度。结论以用户需求为导向的产品设计可以依据该方法为设计师提供可参考的数据,同时以感性工学为基础的游艇造型演变阶段划分,可以避免已不被用户所接受的造型对后续结果的影响,在提高飞桥游艇造型设计效率的同时能更好地贴合用户心理需求。

时空演变视角下海南游艇旅游发展影响因素研究

为促进海南游艇旅游转型升级与空间布局优化,推动海南海洋经济高质量可持续发展,本文基于2013年、2017年、2021年海南游艇俱乐部、游艇会及游艇码头数据,利用标准差椭圆分析、平均最近邻指数、核密度分析、重心迁移模型对海南游艇旅游的时空演化特征进行研究,并利用近邻分析法、相关性分析法和政策文本分析法,从旅游资源禀赋、自然地理环境、区位交通条件、政策保障机制等四个维度剖析和阐释海南游艇旅游时空演化特征的影响因素。研究发现:(1)海南游艇旅游核心场所持续增加;(2)海南游艇旅游发展呈显著的空间聚集特征,聚集程度先上升后下降;(3)海南游艇旅游呈东北-西南走向迁移布局;(4)海南游艇旅游模式逐渐由“三亚-海口双核心”向“三亚单核心”演变;(5)自然地理环境和旅游资源禀赋是影响海南游艇旅游时空格局形成的基础性因素,区位交通条件是其时空演化特征的驱动性因素,政策支持是其时空演化形态的导向性因素。最后,对海南游艇旅游可持续发展提出四个方面的对策建议,以积极推动具有世界影响力的中国特色自由贸易港建设。

基于数值模拟和试验验证的半滑行游艇艇型阻力优化

具备小长宽比、半滑行态特征的游艇线型设计与常规快艇不同,要兼顾快速性、载重吨位以及布置等多方面需求,同时半滑行艇阻力的影响机理尚不明确,所以这类船型的阻力优化仍较为困难。以约束排水量、局部尺度及其他布置相关参数的游艇全航速段减阻及改善兴波高度为目标,通过综合调研“Lackenby”变换获得初始艇型后,提炼多项局部特征参数,探究各特征参数不同取值的组合对于阻力的影响情况,利用高速船重叠网格技术进行数值模拟计算,对比前后方案的阻力及兴波情况等结果进而确定后一步优化方向,通过上述方式送代得到优化船型方案,设计模型试验,验证数值模拟精度及优化效果。经试验验证得到,目标航速优化艇型较初始艇型阻力减少18.36%,且全航速段兴波情况改善明显。

深港海洋经济发展合作研究

深圳和香港地区是粤港澳大湾区核心城市,粤港澳大湾区是我国海洋经济发展的开拓者与引领者。香港地区是国际贸易中心、国际海事中心与国际航运中心,深圳在港口航运和海洋科技方面具备较大潜力。通过分析深港海洋经济合作的基础和条件、问题和机会,本研究提出通过加强港口航运合作、加强海洋科教合作以及邮轮游艇合作,打造海洋优势产业。