Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ship shafting transmission efficiency calculation method, device and equipment and storage medium

A technology of transmission efficiency and calculation method, which is applied in the field of ships, can solve problems such as the impact of evidence collection, and achieve the effects of precise design points, high propulsion efficiency, and improved accuracy

Pending Publication Date: 2022-05-06
GUANGZHOU SHIPYARD INTERNATIONAL LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, whether the shaft transmission efficiency is 0.98 as required by the law or 0.99 as recommended by the manufacturer has an essential impact on evidence collection

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
  • Ship shafting transmission efficiency calculation method, device and equipment and storage medium
  • Ship shafting transmission efficiency calculation method, device and equipment and storage medium
  • Ship shafting transmission efficiency calculation method, device and equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] figure 1 It is a schematic flowchart of a method for calculating the transmission efficiency of a ship shafting according to Embodiment 1 of the present invention. This embodiment can be applied to the shaft transmission efficiency of a 300,000-ton VLCC ship under the maximum continuous output power. The method can be executed by a calculation device for the transmission efficiency of the ship shafting, the calculation device for the transmission efficiency of the ship shafting can be implemented in the form of hardware and / or software, and the calculation device for the transmission efficiency of the ship shafting can be configured in the ship shafting In the calculation equipment of transmission efficiency. Such as figure 1 As shown, the method includes:

[0063] S110. Determine the supporting reaction force of each bearing.

[0064] figure 2 It is a structural schematic diagram of a shafting transmission structure of a ship provided according to Embodiment 1 of...

Embodiment 2

[0078] Figure 4 It is a schematic flow chart of a method for calculating the transmission efficiency of a ship shafting according to Embodiment 2 of the present invention. see Figure 4 , the calculation method of the ship shafting transmission efficiency includes:

[0079] S210. Determine the resultant force acting on the radial direction of the transmission shaft by the propeller.

[0080] see image 3 , the radial direction can be decomposed into the longitudinal radial Z direction and the transverse radial Y direction, the resultant force of the propeller 300 acting on the transmission shaft 200 in the radial direction is the longitudinal radial force Fz and the transverse radial force Fy of the propeller 300 acting on the transmission shaft 200 Heli Fyz.

[0081] S220. Determine the bending moment of the transmission shaft in the longitudinal direction.

[0082] In this embodiment, the axial force Fx of the propeller 300 acting on the transmission shaft 200 will cau...

Embodiment 3

[0119] Figure 12 It is a structural schematic diagram of a calculation device for shafting transmission efficiency of a ship provided according to Embodiment 3 of the present invention; Figure 13 It is a structural schematic diagram of electronic equipment for a method for calculating the transmission efficiency of a ship's shafting according to an embodiment of the present invention.

[0120] see Figure 12 , the calculation device for the transmission efficiency of the ship's shafting includes: a support reaction force determination module 500, which is used to determine the support reaction force of each bearing; a ship's shafting transmission efficiency determination module 600, a ship's shafting The transmission efficiency determining module 600 is used to determine the shafting transmission efficiency of the ship according to the support reaction force of each bearing.

[0121] The ship includes an engine, a transmission shaft and a propeller. The output shaft of the...

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 discloses a ship shafting transmission efficiency calculation method, device and equipment and a storage medium, a ship comprises an engine, a transmission shaft and a propeller, an output shaft of the engine drives the transmission shaft to rotate, the transmission shaft drives the propeller to rotate, N bearings are arranged on the transmission shaft, and N is an integer greater than or equal to 1. The number of N is greater than or equal to 1, and the method comprises the following steps: determining the bearing reaction force of each bearing; and determining the shafting transmission efficiency of the ship according to the bearing reaction of each bearing. According to the technical scheme provided by the embodiment of the invention, the transmission efficiency of the ship shafting and the goodness of fit of the corresponding ship are improved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a calculation method, device, equipment and storage medium for the transmission efficiency of a ship shafting. Background technique [0002] At present, in the industry, there is no complete and practical calculation method for the specific value of the shafting transmission efficiency for a certain type of ship or even a specific ship. Reference values ​​are evaluated. [0003] For example, in the 2007 edition of "Practical Handbook of Ship Design" published by China Communications Science and Technology Press, it can be found that: the approximate value of the shafting transmission efficiency of the stern engine room arrangement is 0.97-0.98; the approximate value of the shafting transmission efficiency of the white metal stern tube bearing is 0.99; the approximate value of transmission efficiency of intermediate sliding bearing shafting is 0.986. For another example, in the ME...

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 Applications(China)
IPC IPC(8): G06F30/15G06F30/20G06F119/14
CPCG06F30/15G06F30/20G06F2119/14
Inventor 梁祖涛陈灏王炳亮罗秋珍汪先勇
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com