Thrust test method for thrusters of dynamically positioned semi-submersible offshore platforms

An offshore platform and dynamic positioning technology, which is applied in ship construction, ships, and ship parts, etc., can solve the problem that the thrust of the propeller cannot guarantee stable output, and achieve the effect of avoiding deviation of test results, stable thrust output, and small platform displacement.

Active Publication Date: 2018-10-12
YANTAI RAFFLES SHIPYARD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thrust test method for a propeller of a dynamic positioning semi-submersible ocean platform, which solves the problems in the prior art that the thrust test process of the propeller is greatly affected by factors such as sea conditions and routes, and the thrust of the propeller cannot guarantee a stable output.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thrust test method for thrusters of dynamically positioned semi-submersible offshore platforms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention is capable of various changes in different embodiments without departing from the scope of the present invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.

[0024] According to the propeller thrust test method of the dynamic positioning semi-submersible ocean platform of the present invention, at first the semi-submersible ocean platform should be located in a safe test sea area, and a safe test sea area can be selected when the platform is sailing, preferably the wind force at sea is no more than 6 grades, The next step of the test is carried out under the weather conditions of moderate waves and swells.

[0025] The test process of the propeller is roughly as follows: take a pair of propellers on the semi-s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a dynamic positioning semi-submersible ocean platform thruster thrust test method. the method comprises the steps of arranging a semi-submersible ocean platform in a safe test sea area; enabling at least one pair of thrusters on the semi-submersible ocean platform to operate at preset test power to perform test, and recording test data of each thruster, wherein thrust of the two thruster of each pair of the thrusters is in a straight line and opposite in direction. By the aid of the method, the relevant thrust test of the thrusters can be completed by keeping the platform position unchanged basically, the effect from the sea conditions is small, and the platform safety is guaranteed; stable output of the thrusters can be guaranteed during test, and deviations of test results are prevented; limit test conditions can be met, and the safety is controllable.

Description

technical field [0001] The invention relates to the field of thruster test methods, in particular to a thrust test method for a dynamic positioning semi-submersible ocean platform thruster. Background technique [0002] After the propeller of the dynamic positioning semi-submersible offshore platform is installed, a series of tests are required to verify the good service performance of the propeller, especially the thrust test. The quality of the thrust test is directly related to the follow-up tests of the platform, such as dynamic positioning, endurance, power station management and other tests. Therefore, the success of the propeller thrust test is the top priority of the comprehensive test of the offshore platform. For the thrust test of the propeller, usually during the deep sea trial of the platform, a safe sea area is selected, and the output power of the propeller is adjusted to drive the platform to sail according to a certain route to achieve the final test purpose...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B63B9/00
Inventor 高海波李铁刚侯立平柳玉省冯永平杨伟国彭文科孙晓伟陈波杨国锋
Owner YANTAI RAFFLES SHIPYARD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap