Method of constructing response surface model on the basis of genetic algorithm and system applying same

A technology of response surface model and genetic algorithm, which is applied in the field of constructing response surface model of complex electromechanical products, can solve problems such as inability to construct

Inactive Publication Date: 2017-12-26
GUANGDONG UNIV OF TECH
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing algorithms such as MP, OMP, and BP can only achieve a better sparsity under the condition of ensuring the accuracy of the reconstructed response surface model, and cannot be applied to the expression of small sparsity and high enough progress at all. Unable to build a more accurate and concise response surface model

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 of constructing response surface model on the basis of genetic algorithm and system applying same
  • Method of constructing response surface model on the basis of genetic algorithm and system applying same
  • Method of constructing response surface model on the basis of genetic algorithm and system applying same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0077] In the prior art, the general response surface model is formed by linear combination of basis functions and their corresponding coefficients, which has the following expression:

[0078]

[0079] c i is the coefficient corresponding to the basis function, ψ i (x) is a basis function.

[0080] The first step in constructing the response surface model is to sample in the design space, and obtain the sampling point set X({x i |i=1, 2,..., m}), and then conduct simulation analysis to obtain the response value data set y({y i |i=1, 2, ..., m}), and finally construct different approximate models by X and y according to different algorithm principles.

[0081] The construction method of the basis function dictionary is a typical fixed orthogonal basis dictionary including discrete cosine tran...

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 relates to the field of complex product design and manufacture, and particularly to a method of constructing a response surface model on the basis of a genetic algorithm and a system applying the same. The method comprises the following steps: a, carrying out sampling, wherein desired parameters or standards are input, and sampling data are obtained by a method of Latin hypercube sampling; b, constructing a basis function dictionary, wherein the mixed dictionary is constructed; c, seeking an algorithm of sparse representation, wherein after the mixed dictionary in the step b is constructed, coefficients corresponding to all basis functions in the mixed dictionary are obtained by solving by the simulated genetic algorithm according to X and Y in the sampling data in the step a; d, establishing the model; e, obtaining an original simulation model value yt corresponding to an independent variable xt in complex product design; and f, outputting machining parameters to use the same on production and manufacture of a complex mechanical and electrical product. According to the method, simulated genetic thinking is utilized to seek expression, which is low in sparseness and is high enough in precision at the same time, on the mixed dictionary, and thus the more precise and concise response surface model is constructed.

Description

technical field [0001] The invention relates to the field of product design and manufacture, in particular to a method and a system for constructing a complex electromechanical product response surface model. Background technique [0002] Facing fierce competition in the mechanical and electrical product market, manufacturing companies must continuously improve their design efficiency while ensuring product quality to meet the diverse market needs. For the design and manufacture of complex electromechanical products (such as the shape and structure of aircraft, automobiles and ships, etc.), it is essentially an optimization process involving multi-disciplinary, multi-objective and "expensive" simulation. The complexity of the analytical calculation model is also increasing, such as finite element analysis (Finite Element Analysis, FEA), computational fluid dynamics analysis (Computational FluidDynamics, CFD) and multi-body dynamics simulation (Multi-body Dynamics Simulation,...

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 Applications(China)
IPC IPC(8): G06F17/50G06N3/00
CPCG06F30/15G06N3/006
Inventor 王科峰黄运保李璞
Owner GUANGDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap