VLCC风帆船航态及负荷变化对推进因子的影响研究

文章针对一条VLCC风帆助推船舶开展水池快速性模型试验研究,通过开展直航、系列变漂角、系列变舵角等工况的模型阻力和变负荷自航试验,研究船舶在风帆助航工况下由于航行姿态和螺旋桨负荷变化引起推进效率的变化规律.基于系列变漂角、变舵角的试验分析结果,开展了船舶自航因子的统计回归分析,据此可开展VLCC风帆助推船在特定航行工况的节能收益评估.论文研究表明:该VLCC船舶航态及航行负荷变化对船后推进因子和推进效率影响有其规律性;本文开展的试验研究和分析方法可对此类风帆助推船舶的节能收益进行定量评估.

Research on Propulsion Factor Influence of Sailing Posture and Load Variation for a Sail-assisted VLCC

In this paper, the resistance and self propulsion model tests are carried out for a sail-assisted VLCC in the towing tank of CSSRC. The model test research is carried out at different conditions including running straight, series change drift angle and series change steering angle. The varied law of propulsion efficiency is achieved for the change of sailing posture and load variation. Based on model test results, the statistical analysis of self propulsion factor was finished and the energy saving evaluation was carried out at specific running conditions.The research results indicate that the change of propulsion factor and propulsion efficiency have some certain regular. The test research and analysis method can provide technical support on the quantitative assessment of energy saving.