A ship shafting optimization method and its optimization platform

An optimization method and shafting technology, applied in design optimization/simulation, geometric CAD, sustainable transportation, etc., can solve problems such as general effects, and achieve the effect of improving design quality

Active Publication Date: 2022-05-20
NAVAL UNIV OF ENG PLA
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing optimization design methods have different emphases and applicable scenarios. Commonly used methods such as frequency modulation, reduction of vibration source excitation, and vibration isolation are used to reduce vibration and noise of the shaft system, but the effect is general. Numerical calculation methods are used A method to study the influence of shafting stiffness on bearing whirling vibration, but because this type of method ignores the difference between the bearing's horizontal stiffness and vertical stiffness, the calculated results of shafting whirling vibration in the horizontal and vertical directions are different from the real values

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
  • A ship shafting optimization method and its optimization platform
  • A ship shafting optimization method and its optimization platform
  • A ship shafting optimization method and its optimization platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The invention will be described in detail below in conjunction with specific embodiments.

[0064] A method for optimizing the alignment of ship shafting, the basic steps of which include:

[0065] Step 1. Obtain the structural parameters and material parameters of the ship shafting system to be optimized, specifically including: the geometric parameters and material properties of each shaft segment in the ship shafting system, the support position of each bearing, the axial and vertical direction of each bearing Support stiffness, the geometric parameters include the size of the shaft, the material properties include elastic modulus and Poisson's ratio, and the support position includes axial position and vertical position;

[0066] Step 2. Establish a finite element model of the ship's shafting system based on the above-mentioned structural parameters and material parameters; perform discrete processing based on the above-mentioned finite element model, specifically r...

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 belongs to the field of ship design, and in particular relates to a ship shafting optimization method and an optimization platform thereof. The method improves the design quality of the shaft system, and in the initial design stage, the purpose of improving the alignment quality of the shaft system and reducing the vibration of the shaft system is achieved by optimizing the position of each bearing of the shaft system. Provide the foundation for the safe and stable operation of the ship. The invention provides a new scheme for controlling the vibration characteristics of the shafting in the alignment design stage, has important theoretical and engineering practice values, can fill in the deficiencies of the existing technical schemes, and improve the design quality of various ship shaftings.

Description

technical field [0001] The invention belongs to the field of ship design, and in particular relates to a ship shafting optimization method and an optimization platform thereof. Background technique [0002] Ship shafting is an important structure that affects the ship's motion performance. The basic function of the shaft system is to transmit power, including transmitting the power from the main motor and other equipment to the propeller to drive the propeller to rotate, and transmitting the thrust or pull generated by the propeller rotation to the ship hull in the form of bearing force to drive the hull. Forward and backward. [0003] Due to the complex stress state of the ship itself, and the changeable channel and hydrological data, the ship and its shafting will bear a variety of different loads during navigation, and these loads will also affect each other. These loads will eventually directly For each bearing transmitted to the shafting, in order to improve the beari...

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): G06F30/15G06F30/23
CPCG06F30/15G06F30/23Y02T90/00
Inventor 刘金林赖国军曾凡明吴杰长严红升曹诗杰
Owner NAVAL UNIV OF ENG PLA
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