经济航速

试验表明半潜体使经济航速阻力减小18～23%，设计航速阻力减小5～7%。

The model experiment results show that SSB may reduce the ship resistance 18 ~ 25 % at economical speed , and 5 ~ 7 % at design speed .

一方面，高油耗船舶受到冷漠，并逐渐淡出市场，同时，不少船公司采取了加船减速的措施，尽量使用经济航速，降低燃油消耗。

On the one hand , high fuel consumption ships are being cold , and gradually exit the market at the same time . Many shipping companies take additional measures to slow speed to make use of economic speed to reduce fuel consumption .

最后从轮机管理的角度出发，分析选择最佳经济航速运行时，存在的技术问题及相应的对策。

Finally , we then from the engine management point of view , analyze the technical issues and solutions in selecting an optimal ship operational speed .

根据184条船模浅水阻力曲线及部分相应的深水阻力曲线，计算了经济航速、临界航速和不同航速下的兴波阻力系数。

Based on 184 . ship models ' shallow water resistance curves and part of corresponding deep water resistance curves , calculated results for economic speeds , critical speeds and wave making resistance coefficients at different velocities have been obtained .

阐明技术为经济服务，航速为市场服务的问题。

It illustrates that technology should serve for economy and speed should serve for market .