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Some methods to obtain the added resistance of a ship advancing in waves

机译：获得在波浪中前进的船舶的附加阻力的一些方法

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摘要

Added resistance in waves is an important part of ship dynamic due to its economical effect on ship exploitation. Can the ship sustain speed in a rough sea state? If not, this will produce delays and economical losses if added resistance is not taken into account in the propulsion design. There are not many simple methods to obtain the added resistance in waves of a ship, and the validity of the results is not always good enough for different ships. In this paper, some theories that can be used to predict the added resistance of a ship are studied and validated against seakeeping tests of some monohull models. Tests and results focus in head seas, which are the most severe for the added resistance. Experimental results are compared with numerical calculations and conclusions about the range of application of the presented theories are obtained.
机译：波浪中增加的阻力是船舶动态的重要组成部分，因为它对船舶开发具有经济影响。船舶能否在波涛汹涌的海面状态下维持速度？否则，如果在推进设计中未考虑附加阻力，则会产生延误和经济损失。在船舶波浪中获得附加阻力的简单方法并不多，并且结果的有效性对于不同的船舶而言并不总是足够好。在本文中，一些理论可用于预测船舶的附加阻力，并针对某些单体船模型的航海测试进行了验证。测试和结果集中在公海，对于增加的抵抗力而言，公海最严重。将实验结果与数值计算进行比较，得出关于所提出理论应用范围的结论。

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