Research On Product Gene Network Model For Industrial Design

To solve complex problems such as the combination of explosion of design parameters and complex mapping relationship between design parameters and imagery goals in industrial design,this paper introduces the concept of Gene Regulatory Network(Gene Regulatory Network)in molecular biology.The related complexity of product design is described as a network model with the design parameters and design goals as nodes,ie "gene network".This model realizes the visual expression of implicit associations and weights between design parameters and imagery goals,as well as evaluation and calculation of perceptual goals,improves evolutionary efficiency,and enriches product design methodologies.In this paper,the construction method of product gene network model is presented;the Gene Network model,aimed the two most widely used industrial design objects of product form and color combination,was built with automobile products as the carrier,the prototype system is developed to demonstrate the feasibility of the Gene Network model and its auxiliary effect on the design process.Aimed at parameter optimization represented by shape design,a Gene Network model with design parameters and image targets as two kinds of nodes was established.Taking the automotive modeling design for research objects,a three-dimensional model of 146 common vehicle models was established basing on 106 automobile modeling parameters.At the same time,the evaluation experiment was carried out for 20 pairs of image targets.The design parameters and perceptual evaluation words of vehicle modeling were put as two kinds of nodes to calculate the correlation between the nodes and to build up the edge,which had constructed the gene networks of automobile modeling that could be used to express the internal association of automobile modeling design parameters and image evaluation.In order to excavate the deeper content in the product modeling networks,the key nodes and the cluster of nodes in the network were identified according to the sensitivity and degree of each node,and the knowledge was separated out to assist the designers' decision.Subsequently,the existence and stability of the network model were demonstrated by repeating the modeling process of the above gene network in different vehicle models.For the combination optimization represented by color matching design based on the image reproduction on image color in the design of product,the Gene Network is embodied as "color adjacency network" model: taking the extracted color of reference source as the node,the adjacency close degree between the color regions as the edge,the author have built two model network,namely,the source network and the target network.Mapping the color combination issue as to search the sub-net of the best matching of the target network from the source network,using the combination of inverse number and hetero-junction number to evaluate the matching strength,and based on the Interactive Genetic Algorithms(IGA)and other technical means,the color combination scheme was optimized,and its application was also verified.This paper establishes a gene expression mode for typical issues in product industrial design,and approves its objective existence and stability,forming a complex network model for industrial design matters.The application demonstration is put forward based on the morphological design of automobile and color combination.And based on the 3D parameterization platform,Solidworks and the 2D vector design platform CorelDraw,the prototype system of morphological design and the one of color combination design are respectively developed,which have realized the typical application of Gene Network model.