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

Method for Determining the Range of Design Variables in Multi-objective Optimization of RV Reducer Main Bearing

A multi-objective optimization and design variable technology, applied in multi-objective optimization, design optimization/simulation, CAD based on constraints, etc., can solve problems such as methodless analysis, and achieve the effect of improving efficiency

Active Publication Date: 2020-07-10
XI AN JIAOTONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in the published patents and published related literature, there is no method for determining the multi-objective optimization design variables of the RV reducer main bearing based on the pseudo-static model, and there is no related method analysis

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 Determining the Range of Design Variables in Multi-objective Optimization of RV Reducer Main Bearing
  • Method for Determining the Range of Design Variables in Multi-objective Optimization of RV Reducer Main Bearing
  • Method for Determining the Range of Design Variables in Multi-objective Optimization of RV Reducer Main Bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] The model of the main bearing of the RV reducer in the embodiment is H76 / 182, and its main structural parameters are: the number of balls: 51, the ball diameter is 10.319mm, the nominal diameter is 198mm, the curvature coefficients of the inner and outer grooves are: 0.5097, 0.5204, and the initial contact angle About 47 degrees. The angular rigidity, frictional moment and rated axial dynamic load of the main bearing of this type of RV reducer are 3.12e+09N*mm / rad, 1.24e+03N*mm, 7.37e+04N.

[0044] refer to figure 1 , a method for determining the range of design variables in the multi-objective optimization of RV reducer main bearings, including the following steps:

[0045] Step 1, carry out the combination distribution analysis of the main bearing design variables of the RV reducer, and find the combination closest to the original design pa...

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 method for determining a design variable range in multi-objective optimization of a main bearing of an RV reducer. The method comprises the steps of firstly determining original design parameters, working conditions, constraint conditions and initial design variables of the main bearing; secondly establishing a quasi-statics model, outputting objective functions of angle stiffness, friction torque and fatigue life, performing optimization by applying MOTLBO, and combining ball diameters and ball numbers of an optimization result to obtain all ball diameter and ball number combinations; and finally performing maximum and minimum normalization processing, calculating a Euclidean distance between a processed solution set and an original design, selecting first 20% of individuals with the minimum Euclidean distance, analyzing a proportion of each combination in the first 20% of the individuals, selecting the combination with the highest proportion, performing multi-objective optimization by applying MOTLBO, until a change range of design variables in an optimization result meets a stop condition, and outputting finally determined design variables and change range. According to the method, the design variables of the specific ball diameter and ball number combination of the main bearing of the RV reducer and the reasonable change range of the design variables are obtained, so that the optimization design efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of optimization design of main bearings of RV reducers, and in particular relates to a method for determining the range of design variables in multi-objective optimization of main bearings of RV reducers. Background technique [0002] As a precision control component on the arm of an industrial robot, the RV reducer's characteristics directly affect the mechanical characteristics of the industrial robot, and the main bearing of the RV reducer is the main bearing element of the RV reducer, which affects its smooth operation, positioning and rotation accuracy, Work reliability has an important impact, and the theoretical research in this area in my country is still blank at present, lacks design guidance, and the finished products are mostly imitations, so relevant optimization design guidance is urgently needed; at the same time, for RV reducer main bearings that lack design experience It is said that how to ch...

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): G06F30/20G06F30/17G06F111/06G06F111/04
CPCG06F30/17G06F30/20G06F2111/04G06F2111/06
Inventor 张进华洪军李小虎于东朱永生
Owner XI AN JIAOTONG UNIV
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