某化学品/油船航线性能分析
2016-10-11马卫星谢凤伟李传庆董国祥陈伟民
马卫星, 谢凤伟, 李传庆, 董国祥, 陈伟民
(上海船舶运输科学研究所 航运技术与国家安全重点实验室,上海 200135)
某化学品/油船航线性能分析
马卫星, 谢凤伟, 李传庆, 董国祥, 陈伟民
(上海船舶运输科学研究所 航运技术与国家安全重点实验室,上海 200135)
新船型开发和船型优化是船舶工业永恒的主题,目前已由传统的只针对静水性能发展到计入海况的影响。因此,基于静水和波浪条件下的船模试验结果,考虑海况影响,对船舶航线性能进行分析,既是船舶性能评估的重要组成部分,同时也是船舶线型优化效果检验的重要手段,可为船舶所有人和班轮公司呈现出最直观的线型优化效果。以某化学品/油船的原型和改型方案为例,按照上述方法计算分析二者在静水中和目标航线上的耗油量,结果表明改型结果较为理想。
水路运输; 典型航线; 模型试验; 船舶性能; 船型优化
Abstract: The major concern during development of new ship type and ship form optimization is shifting from the static water performance to that in real sea conditions for it is the latter reflects the actual operational energy consumption. An straightforward way is to perform the model tests both in static water and with waves, and determine the influence of sea conditions. This is convenient for evaluating a ship design and judging the effect of hull form optimization, and is also a good way of presentation for owners and liner companies to understand the advantage of a hull form. With the above method, the amounts of oil consumption of the prototype and the modification of a chemical/oil tanker on the typical routes are calculated, which proves that the performance of the modification is noticebally improved.
Keywords: waterway transportation; typical course; model tests; ship performance; hull form optimization
船舶在航行期间通常会受到风浪影响,海上风浪环境是影响船舶营运效能的最主要的外界因素。鉴于船舶在风浪中的航行性能更能真实地反映船舶的营运效能,随着国际航运节能减排工程不断深入,国际海事组织(International Maritime Organization, IMO)在有关船舶能效评估的总体理念中要求航运界和造船界必须重视船舶在实际海况下的安全和能耗。因此,针对船舶航行过程中实际可能遇到的风浪环境进行船型和推进性能优化,将成为提高船舶能源利用效率、减少船舶实际能耗的重要技术途径,也将是造船业开发绿色船型的重要导向,同时对提高船舶远洋航行的安全性具有重要意义。……
