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

Determination method of ultimate load for multi-span instability of longitudinal structure considering lateral load

A lateral load, ultimate load technology, applied in special data processing applications, instruments, geometric CAD, etc., can solve problems such as high requirements, large modeling and calculation time, etc.

Active Publication Date: 2021-07-23
708TH RES INST OF CSSC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the requirements for computer hardware and software operators are relatively high, and it takes a lot of modeling and calculation time

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
  • Determination method of ultimate load for multi-span instability of longitudinal structure considering lateral load
  • Determination method of ultimate load for multi-span instability of longitudinal structure considering lateral load
  • Determination method of ultimate load for multi-span instability of longitudinal structure considering lateral load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] In a preferred embodiment, as figure 1 As shown, a method for determining the ultimate load of longitudinal multi-span instability considering the lateral load is proposed, which is suitable for determining the ultimate load of the hull plate considering the lateral load.

[0052] Methods of determination may include:

[0053] Step S1, establishing a calculation model for the lateral displacement of the plate frame under the action of the lateral load;

[0054] Step S2, using the beam as the elastic support of the longitudinal frame, according to the simple frame theory of "Ship Structural Mechanics", calculate the deformation of the frame under the action of lateral load, so as to determine the lateral displacement of the longitudinal frame support;

[0055] Step S2, deriving the formula for the additional bending moment of the longitudinal b...

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 present invention relates to the field of ship structure design, and proposes a method for determining the ultimate load of multi-span instability of longitudinals in consideration of lateral loads, including: lateral displacement of beams or ribs (hereinafter collectively referred to as beams) caused by the overall deformation of the plate frame As an initial defect, it is introduced into the calculation model of single-span longitudinal buckling, and a calculation model for the ultimate load of longitudinal multi-span instability under the action of longitudinal axial force and lateral pressure is established; by solving Differential equations to obtain the additional eccentricity of the longitudinals caused by the lateral displacement of the beams; give the calculation formula for the ultimate load calculation of the multi-span instability of the longitudinals considering the lateral pressure; the above technical scheme can be used to reveal the hull longitudinal girders The influence law of the ultimate load of multi-span column instability guides the design of the ultimate load of the plate frame.

Description

technical field [0001] The invention relates to the field of ship structure design, in particular to a method for determining the ultimate load of longitudinal multi-span instability in consideration of lateral load. Background technique [0002] The stiffened plate is the most basic structural unit of the ship structure and the basis of the ultimate load analysis of the hull girder. At present, the calculation methods for the ultimate load of stiffened plates adopted in the industry mainly include theoretical method and finite element method. Above the span longitudinal, either the influence of lateral load is not considered, or although the lateral load is considered, only the deformation of the single-span longitudinal is considered, and the influence of the overall deformation of the plate frame on the ultimate load is not considered. That is to say, the multi-span instability of longitudinals caused by lateral pressure cannot be considered, so the influence of lateral ...

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): G06F30/15G06F119/14
CPCG06F30/15G06F2111/10
Inventor 贺远松吴剑国伍友军朱汉波
Owner 708TH RES INST OF CSSC
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