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

Locomotive side bearing finite element analogue simulation method and simulation model

A simulation method and finite element technology, applied in the field of locomotive side bearing finite element simulation simulation method and simulation model, can solve the problems of inconvenient moment transmission, inconvenient accurate calculation of side bearing contact position stress, complicated setting, etc.

Pending Publication Date: 2022-02-18
CRRC ZIYANG CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a finite element simulation method and simulation model for the side bearing of a locomotive, which solves the inconvenience of the prior art to accurately calculate the stress near the contact position of the side bearing, the inconvenient transfer of torque, and the complicated setting And other issues

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
  • Locomotive side bearing finite element analogue simulation method and simulation model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a finite element simulation method for side bearing of a locomotive, the side bearing contact surface is discretized into multiple side bearing contact surface finite element units 1 through finite element simulation, and the rubber side bearing is discretized into multiple spring finite element units through finite element simulation The element element 2, each finite element element node 3 between the plurality of side bearing contact surface finite element elements 1 is connected to a single spring finite element element 2.

[0023] The invention is convenient for accurate calculation of the stress near the contact position of the side bearing, convenient for moment transmission, and simple setting.

[0024] As a preferred technical solution, it is assumed that the side bearing material is uniform.

[0025] This further improves the simulation accuracy.

[0026] As a preferred technical solution, it is assumed that the stiffness of each s...

Embodiment 2

[0039] Such as figure 1 As shown, as a further optimization of Embodiment 1, this embodiment includes all the technical features of Embodiment 1. In addition, this embodiment also includes the following technical features:

[0040] A finite element simulation model of a side bearing of a locomotive, formed according to the finite element simulation method for a side bearing of a locomotive, comprising a plurality of side bearing contact surface finite element units 1, a plurality of spring finite element units 2, a plurality of Each finite element element node 3 between the side bearing contact surface finite element elements 1 is connected to a single spring finite element element 2 .

[0041] The invention is convenient for accurate calculation of the stress near the contact position of the side bearing, convenient for moment transmission, and simple setting.

Embodiment 3

[0043] Such as figure 1 As shown, this embodiment includes all the technical features of Embodiment 1 and Embodiment 2. On the basis of Embodiment 1 and Embodiment 2, this embodiment provides a more detailed implementation mode.

[0044] The side bearing contact surface of the locomotive body is an area, which is not a rigid surface, but an elastic surface. It is required that each node 3 of the discrete finite element element has relatively independent displacement and reaction force. In order to maintain this characteristic, the side bearing must also be discretized to ensure that each unit node in the contact surface area is supported by a spring finite element unit 2. Assuming that the material of the side bearing is uniform, the stiffness of each spring finite element unit 2 is the same. Each spring finite element unit 2 is connected in parallel to form the whole side bearing, and the stiffness of a single spring finite element unit 2 is k=K / n, where K is the stiffness of...

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 locomotive side bearing finite element analogue simulation method and a simulation model, and the method comprises the steps: dispersing a side bearing contact surface into a plurality of side bearing contact surface finite element units through finite element simulation, and dispersing a rubber side bearing into a plurality of spring finite element units through finite element simulation, and each finite element unit node among the plurality of side bearing contact surface finite element units being connected with an independent spring finite element unit. The method solves the problems that in the prior art, stress near the contact position of the side bearing is inconvenient to accurately calculate, torque is inconvenient to transmit, and setting is complex.

Description

technical field [0001] The invention relates to the technical field of finite element simulation analysis of the structural strength of a locomotive car body, in particular to a finite element simulation method and a simulation model of a locomotive side bearing. Background technique [0002] With the development of computer-aided technology, finite element simulation analysis of structural strength is becoming more and more important in the early stage of locomotive design. Its fast and economical characteristics can reduce design waste on a large scale, so the accuracy of simulation has become a problem that must be paid attention to. As the support point of the whole locomotive body, the rubber side bearing of the locomotive is also an important point for imposing constraint boundary conditions in the finite element simulation analysis. The simulation method has a great influence on the stress magnitude and distribution near the contact position of the side bearing. At pr...

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
IPC IPC(8): G06F30/23G06F119/14
CPCG06F30/23G06F2119/14Y02T90/00
Inventor 杨毓康王毅李连凯陈玲唐念唐培
Owner CRRC ZIYANG CO 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