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A method for evaluating the top force of offshore wind power operation and maintenance ships

An offshore wind power, operation and maintenance technology, applied to ships and other directions, can solve the problem that the ability of the operation and maintenance ship to lean against can not be evaluated, etc.

Active Publication Date: 2021-03-23
福建海电运维科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no standard specification for this working condition in China, so the jacking capacity of the operation and maintenance ship cannot be evaluated

Method used

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  • A method for evaluating the top force of offshore wind power operation and maintenance ships
  • A method for evaluating the top force of offshore wind power operation and maintenance ships
  • A method for evaluating the top force of offshore wind power operation and maintenance ships

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Embodiment 1

[0054] Please refer to Figure 1 to Figure 4 , Embodiment 1 of the present invention is: a method for evaluating the top force of an offshore wind power operation and maintenance ship, comprising the steps of:

[0055] S1. Determine the displacement of the operation and maintenance ship when it leans against the fan at the wave crest ▽ 1 , the vertical distance L from the center of buoyancy of the operation and maintenance ship at the wave crest to the bow of the operation and maintenance ship 1 , the bow and stern inclination angle θ of the operation and maintenance ship at the wave crest 1 , the wind force F of the operation and maintenance ship at the wave crest 1 , the ocean current force F experienced by the operation and maintenance ship at the wave crest 2 , to determine the displacement of the operation and maintenance ship when it leans against the fan at the wave trough▽ 2 , the vertical distance L from the center of buoyancy of the operation and maintenance ship...

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Abstract

The invention relates to the technical field of offshore construction engineering, especially to an evaluation method for the abutting force of an offshore wind power operation and maintenance ship. The evaluation method comprises the steps: S1, determining displacement delta 1 when the operation and maintenance ship abuts a draught fan at a wave crest, a vertical distance l1 from the buoyancy center of the operation and maintenance ship at the wave crest to the bow of the operation and maintenance ship and the bow-stern inclination angle theta 1 of the operation and maintenance ship at the wave crest; S2, establishing a first friction force balance equation to obtain friction force F5 between the bow of the operation and maintenance ship and the draught fan in a vertical direction, and establishing a second friction force balance equation to obtain friction force F6 between the bow of the operation and maintenance ship and the draught fan in a horizontal direction; and S3, determiningthe abutting force F9 of the operation and maintenance ship abutting against the draught fan at the wave crest according to the F5 and the F6, and determining the abutting force F10 of the operationand maintenance ship abutting against the draught fan at the wave crest according to F7 and F8. According to the evaluation method for the abutting force of the offshore wind power operation and maintenance ship provided by the invention, the safety of the operation and maintenance ship in operation abutting against the draught fan can be improved.

Description

technical field [0001] The invention relates to the technical field of offshore construction engineering, in particular to a method for evaluating the top force of an offshore wind power operation and maintenance ship. Background technique [0002] Wind energy is a renewable and clean energy. Offshore wind resources are superior to those on land. The development of offshore wind power has become an irreversible trend. my country's offshore wind power industry has just started. Compared with the design and manufacture of wind turbine equipment, the technology and equipment for offshore wind power maintenance are lagging behind. Since the offshore wind power operation and maintenance ship is a new type of ship, there is no clear definition and related performance regulations for this type of ship in China, and the most important operating condition of the offshore wind power operation and maintenance ship is to transport the operation and maintenance technicians to board the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B79/30
CPCB63B79/30
Inventor 杨余张虎周继国赵明睿
Owner 福建海电运维科技股份有限公司
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