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

Method for selecting strain gage distribution radius of radials force measuring wheel pair

A technology for measuring force wheel sets and patch radius, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve the problems of poor accuracy and scalability

Pending Publication Date: 2017-10-10
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional method is greatly affected by the experience of researchers and the number of samples. The final patch radius is not necessarily the optimal radius, and its accuracy and generalizability are poor.

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
  • Method for selecting strain gage distribution radius of radials force measuring wheel pair
  • Method for selecting strain gage distribution radius of radials force measuring wheel pair
  • Method for selecting strain gage distribution radius of radials force measuring wheel pair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 The simulation analysis model of wheel-rail contact relationship shown includes wheel 1, transverse bridge strain gauge 2, vertical bridge strain gauge 3, lateral force 4, vertical force 5; transverse bridge strain gauge 2 and vertical bridge strain gauge 3 It is located between the inner and outer webs, and the radii of the fabrics are R L with R V Indicates that the variation range of the patch radius is [x 1 ,x 2 ]; Lateral force 4 in F L Indicates that the distance between the point of action and the bottom of the rim is z L ; Vertical force 5 in F V Indicates that the distance between the point of action and the outer end face of the wheel is y V .

[0031] The selection method and working principle of the present invention are specified below:

[0032] 1. Use PROE software to build a three-dimensional wheel model, ...

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

Provided is a method for selecting the strain gage distribution radius of a radials force measuring wheel pair. The method includes the steps of based on a surrogate model technique, obtaining the global sensitivity of radials strain values at the positions of different radii of a vehicle wheel relative to a wheel-rail force and the positions of action points of the wheel-rail force, comprehensively comparing the global sensitivity of the radials transverse and vertical strain values relative to the wheel-rail force and the positions of the action points of the wheel-rail force; finally selecting the maximum of the global sensitivity as the strain gage distribution radii of a transverse bridge and a vertical bridge. According to the global sensitivity analysis method, the global sensitivity and individual sensitivity of the vehicle wheel radials strain values relative to the wheel-rail force and the positions of the action points of the wheel-rail force can be accurately described; according to the principle that interference is as large as possible and crosstalk is as small as possible, the global sensitivity of the radials transverse and vertical strain values relative to the wheel-rail force and the positions of the action points of the wheel-rail force is comprehensively compared, and the method has a theoretical foundation, and makes the test results of the wheel-rail force more reliable.

Description

technical field [0001] The invention belongs to the field of wheel-rail force measurement of rail vehicles, in particular to a method for selecting the patch radius of a radial plate force-measuring wheel set. Background technique [0002] The web-type force-measuring wheel set is widely used in the wheel-rail force measurement of high-speed EMUs and urban railway buses because it is close to the actual vehicle wheel set. "TB / T 2360-93 Railway Locomotive Dynamic Performance Test Appraisal Method and Evaluation Standard" only stipulates the arrangement of vertical force strain gauges and lateral force strain gauges on the web wheel set and the calculation method of wheel-rail force measurement , but there is no standard determination method for the radial position of the strain gauge cloth. However, a large number of research literatures point out that the radius of the strain gauge has a great influence on the test results of the wheel-rail force. If the patch is placed at ...

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): G06F17/50
CPCG06F30/23G06F30/15
Inventor 滕万秀丁鑫艾兴乔
Owner CRRC CHANGCHUN RAILWAY VEHICLES 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