Research On Product Variant Design Method Driven By Customer Requirements

Under the current mass customization production mode,the enterprise should constantly provide new products satisfying customers' diversified and individual requirements with low cost and high efficiency.As one of the key technologies to achieve mass customization,product variant design can realize fast product configuration through reusing existing design knowledge and production resources based on existing product examples.Customer requirement is the starting point of product design and manufacture.Satisfying customer requirements is the key to product design.Therefore,product variant design method driven by customer requirements is proposed in this paper.Customer requirement,variant design method,multi-objective programming of variant design scheme and impact of design change are studied in this paper.The details are described as follows:(1)The characteristics and classification of customer requirement are studied in this paper.Customer requirement template is constructed based on the requirement node.For different types of requirement nodes,the expression forms of parametric and optional requirement node are defined.In order to obtain customer requirements quickly and accurately,a customer requirement acquisition system is constructed.(2)In order to realize the product variant design driven by customer requirements,a modular product family structure model is constructed in this paper.The technical system of variant design is studied and variant design process is described.Through modular and parametric variant design method,product variant design is realized.(3)In order to consider the influence of multi-objective factors on variant design scheme,multi-objective programming of variant design scheme is proposed in this paper.A multi-objective programming model considering customer satisfaction,cost,delivery time is constructed.NSGA-II algorithm is used to solve this model,thus optimized product variant design scheme is obtained.(4)The method of analysing design change impact based on design structure matrix is proposed.The influence of changing operation on the matrix is studied.Through optimizing and recombining the matrix,the impact of design change is obtained.