Method and Evaluation of a Simplified Propulsion Performance Estimation for Eco-Friendly Navigation Planning Support System

在本研究中，我们提出了一种简化的生态友好型导航规划支持系统推进性能估计方法。现有的方法需要船体形状文件，但这些文件一般被认为是商业秘密。所提出的方法适用于一般特性（至少长度、宽度、深度）已知的船舶。本文提出了一种基于船舶一般特性值的风、浪阻力系数计算方法，并编制了计算公式。我们用一艘商船来评估这种方法。结果表明，本文提出的方法与现有方法在降低油耗效果和船舶航速估计精度上差异不大。

In this research, we proposed a simplified propulsion performance estimation method for Eco-Friendly Navigation Planning Support System, a type of weather routing systems. The existing method needs hull shape documents, but the documents is generally considered as trade secrets. The proposed method is applicable for ships whose general characteristics (at least Length, Breadth, depth) are known.We proposed the method and a program which contains calculating formulas to estimate wind, wave resistance coefficients easily with several values of ship's general characteristics.We evaluate the method by using a merchant ship. We found quite little difference of fuel consumption reduction effects and vessel speed estimation accuracy between the proposed and the existing method.