The International Journal of Small Craft Technology最新文献_第2页

EEDI (ENERGY EFFICIENCY DESIGN INDEX) FOR SMALL SHIPS OF THE TRANSITIONAL MODE Eedi(能效设计指标)适用于小型船舶的过渡模式

The International Journal of Small Craft Technology Pub Date : 2014-06-01 DOI: 10.3940/rina.ijsct.2014.b1.152

O. Kanifolskyi

引用次数: 4

Parameters affecting the performance of the c-class wingsail 影响c级翼帆性能的参数

The International Journal of Small Craft Technology Pub Date : 2014-06-01 DOI: 10.3940/RINA.IJSCT.2014.B1.155

M. Magherini, S. Turnock, I. Campbell

{"title":"Parameters affecting the performance of the c-class wingsail","authors":"M. Magherini, S. Turnock, I. Campbell","doi":"10.3940/RINA.IJSCT.2014.B1.155","DOIUrl":"https://doi.org/10.3940/RINA.IJSCT.2014.B1.155","url":null,"abstract":"Wing sails offer a different design challenge to those of more conventional soft sail rigs. This study was undertaken in order to assess which parameters influence wingsail performance of C-Class catamarans, and to what extent, the results from the wind tunnel can be applied in the design developments of future wingsails. A combined wing sail and C- class catamaran was tested in the low-speed section of the 7’ x 5’ wind tunnel at the University of Southampton. Testing assessed the appropriate settings for the movable element of the multiple-element wing sail as well as heeling angle,trampoline porosity, spanwise camber distribution and gap at the foot of the wingsail. Both upwind and downwind conditions were considered through measurement of driving force, heeling force, heeling and yawl moments. The results demonstrate that low heel angles improve overall performance and that the gap underneath the wingsail foot adversely affects the generation of lift by the sail. An airfoil shaped trampoline is suggested in order to benefit both a reduced gap and a better control over the heel. For heavy wind condition, negative twist at the tip of the wingsail allows higher boat speeds","PeriodicalId":355970,"journal":{"name":"The International Journal of Small Craft Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134562086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

SELF-RIGHTING CRAFT – BASIC PRINCIPLES AND DESIGN REQUIREMENTS 自动扶正工艺。基本原理和设计要求

The International Journal of Small Craft Technology Pub Date : 2013-06-01 DOI: 10.3940/rina.ijsct.2013.b1.135

K. Thatcher

引用次数: 3

Waterjet Propulsion System Tested in a Wind Tunnel and Compared With Numerical Simulation 水射流推进系统风洞试验与数值模拟比较

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2006.B1.29

A. Blyth

引用次数: 2

Experiments On the Survivability of Small Passenger Vessels in Collisions 小型客船碰撞生存能力试验研究

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2006.B2.51

B. Deakin

引用次数: 0

Model Tests To Study Capsize and Stability of Sailing Multihulls 多体帆船倾覆及稳定性模型试验研究

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2003.B2.9031

B. Deakin

引用次数: 3

Application of artificial neural networks in preliminary sailing yacht design 人工神经网络在帆船初步设计中的应用

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2007.B1.7007

G. Ernst, R. Birmingham, E. Mesbahi

引用次数: 0

Practical Aspects of Canting Keel Design, Construction and Analysis 倾斜龙骨设计、建造和分析的实践方面

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/rina.ijsct.2007.b2.6007

L. Tier, M. Owen, T. Sadler

{"title":"Practical Aspects of Canting Keel Design, Construction and Analysis","authors":"L. Tier, M. Owen, T. Sadler","doi":"10.3940/rina.ijsct.2007.b2.6007","DOIUrl":"https://doi.org/10.3940/rina.ijsct.2007.b2.6007","url":null,"abstract":"In the last decade canting keels have moved from the exotic to the mainstream in offshore racing yacht design. Now classes from Minis to Maxis are designed with canting keels, but several recent high profile failures in the Vendee Globe and Sydney Hobart have brought designers back to the drawing board to have a closer look at the design and construction methods involved for both the keel fin and the actuation system. Although rules are now beginning to appear for stability criteria and safety in the event of actuation failure, there are not as yet any general structural guidelines beyond the ABS Guide for Offshore Racing Yachts. Aimed at more conventional yachts they can never hope to take into account the complicated loadings on canting keels. Estimates of hydrodynamic loads, slamming loads, grounding loads and loads from the ever increasing danger of hitting unidentified floating objects must be made. Then tools such as FEA are invaluable in the analysis of a structures response. Choices of material and construction are based on the type of yacht and racing it will be required to do as well as restrictions in some class rules such as the Volvo Open 70. Optimisation of sailing characteristics, weight, safety and operation are all taken into account. Once built and fitted, the work is not over as keels are routinely checked for structural integrity before and after major events even before their estimated fatigue mileage is complete. Owen Clarke Design has been associated with canting keel design for many years, during which time there has inevitably been an evolution in techniques and many learning experiences. The aim of this work is to pull together our experience in design, construction and analysis into a reference that others may benefit from and add to, in order to improve safety and reliability of canting keel design.","PeriodicalId":355970,"journal":{"name":"The International Journal of Small Craft Technology","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126267950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Design of A Brigantine Rigged Sailing School Research Vessel For The Sea Education Association (Woods Hole Massachusetts) 为海上教育协会(马萨诸塞州伍兹霍尔)设计的双桅帆帆船学校研究船

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2003.B2.8031

C. Fassardi

引用次数: 0

The Yaw Balance of Sailing Yachts Upright and Heeled 帆船垂直和倾斜的偏航平衡

The International Journal of Small Craft Technology Pub Date : 1900-01-01 DOI: 10.3940/RINA.IJSCT.2003.B1.5031

J. Keuning, K. J. Vermeule

引用次数: 16