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Correction method for sea wave resistance in evaluation of ship performance

A technology for ships and sea waves, which is applied in the field of correction of sea wave resistance, can solve the problems of inaccurate and reliable consideration of sea wave resistance factors, inaccurate, simple and rough evaluation of sea wave resistance, etc., to reduce emissions, improve fuel efficiency, and reliable evaluation The effect of the curve

Active Publication Date: 2020-02-28
SHANDONG JIAOTONG UNIV
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Problems solved by technology

[0006] However, the ship performance evaluation methods in the prior art either only involve the evaluation in calm sea conditions, or are tested in real sea conditions, but the resistance evaluation to sea waves is too simple and rough, and not accurate enough, resulting in the existing evaluation methods for Factoring in wave resistance is imprecise and unreliable

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  • Correction method for sea wave resistance in evaluation of ship performance
  • Correction method for sea wave resistance in evaluation of ship performance
  • Correction method for sea wave resistance in evaluation of ship performance

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Embodiment Construction

[0019] The technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only some, not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0020] When a ship sails under real sea conditions, it is not only subjected to the static resistance of the ocean, but also the wave resistance of the waves. These resistance effects must be taken into account in the accurate evaluation of the ship's performance. In addition to the static resistance below the waterline, the calculation of sea wave resistance also needs to consider factors such as radiation effects, diffraction effects, and reflection effects, all of which are related...

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Abstract

The invention relates to a correction method for sea wave resistance in evaluation of ship performance. The method aims at solving the problems that in a sea wave resistance evaluation method in the prior art, conformity of an evaluation curve and actual measurement data is not high, accuracy is low, and reliability is low due to the fact that conventional waves serve as main influence factors. Short waves are used as main influence factors of sea wave resistance. Action factors of short waves are calculated, an existing sea wave resistance evaluation method is corrected, so that the consistency between a corrected evaluation curve and data obtained through an actual test is higher. The ship performance evaluation method is more accurate and more reliable through the correction method, andthe correction method can play an important role in the subsequent ship optimization design and ship operation management process.

Description

technical field [0001] The invention relates to a method for evaluating ship performance, in particular to a method for correcting sea wave resistance in the evaluation of ship performance under real sea conditions. Background technique [0002] With the increasing development of globalization and international trade, more and more goods are transported between countries and regions around the world, and the demand for goods transportation is also increasing. Relying on its advantages of large volume, long distance and low cost, ship transportation has become the most important mode of transportation in international trade and occupies a very important position in the transportation of goods in international trade. [0003] In ocean-going vessels, fossil fuels such as oil or natural gas are generally used as energy sources for engines. In large seagoing ships there are other engines that rotate the ship's generator or main propulsion machinery. Fuel is delivered to sea shi...

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/08
CPCG06Q10/0639G06Q10/083
Inventor 马强刘刚徐海东郭俊杰史晓萍崔文超张强张业威
Owner SHANDONG JIAOTONG UNIV
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