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

Allocation design method for stiffness on different position of fixed joint surface of machine

A technology of fixed joint surface and parameter allocation, applied in the direction of design optimization/simulation, calculation, genetic law, etc., can solve the problems of inability to meet production requirements, difficulty in ensuring the dynamic characteristics of the machine tool with stiffness parameters, and time-consuming, so as to improve the performance. Processing efficiency and processing accuracy, strong operability, and the effect of reducing manufacturing costs

Inactive Publication Date: 2017-01-25
TIANJIN UNIV
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is difficult to ensure that the stiffness parameters for the combination of many positions are optimal for the dynamic characteristics of the machine tool, and it takes a lot of time to select parameters and perform numerical simulation analysis calculations at the same time, which cannot meet the design and production requirements of modern machine tools

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
  • Allocation design method for stiffness on different position of fixed joint surface of machine
  • Allocation design method for stiffness on different position of fixed joint surface of machine
  • Allocation design method for stiffness on different position of fixed joint surface of machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings, figure 1 It is the overall flowchart of the inventive method, and the design method step for specific embodiment is as follows:

[0022] (1) Determine the parameters required for the precision machine tool to be analyzed

[0023] The various parameters required for the precision machine tool to be analyzed are the outer dimensions of the bed column, the relative position dimensions of the connection points of the joint surface, the quality parameters and the moment of inertia parameters of the bed column. The required geometric parameters of the bed column and joint surface to be analyzed are as follows: figure 2 As shown, the relative position size of the connection point of the combined surface is a 3 、a 4 、a 5 、c 4 、c 6 、c 7 、c 8 , ...

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 an allocation design method for stiffness on different position of fixed joint surface of machine, comprising the steps of (1) confirming every parameter of machine to be analyzed; (2) extracting all degree of freedom of bed and column of machine to be analyzed; (3) building dynamic model of bed and column system; (4) confirming the design space of variable and building equation of motion for non-damping vibration of system with multi degree of freedom; (5) constructing two-phase response surface model and conducting allocation design for the stiffness on different position of fixed joint surface of machine by using genetic algorithm iterative approximation optimum seeking technology; and (6) using finite element analysis software ANSYS to verify the optimize results. The method processes estimation and allocation design for the stiffness on different position fixed joint surface of bed and column and thus improves dynamic character of machine.

Description

technical field [0001] The invention relates to a stiffness parameter planning method at different positions of the fixed joint surface of a bed column of a machine tool, in particular to a method for assigning stiffness parameters at different positions of the fixed joint surface of a precision machine tool based on a response surface and a genetic algorithm. Background technique [0002] The dynamic performance of the machine tool has an important impact on the machining accuracy and efficiency of the machine tool. In the traditional machine tool design, the stiffness parameters at each position of the joint surface are allocated according to past experience. This method is subjective and is not conducive to ensuring the dynamic performance of the machine tool. [0003] At present, the distribution design of stiffness parameters at different positions on the fixed joint surface of precision machine tools is still limited to the optimal method of a single position. The essen...

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): G06F17/50G06N3/12
CPCG06F30/17G06F30/23G06N3/126
Inventor 张大卫张军傲石一光郭悟斌
Owner TIANJIN 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