Research On Aesthetic Evaluation And Optimization Method Of Vertical Air Conditioner Form Driven By Consumer Requirements

Human requierment is the driving force behind the development of human science and technology.In the context of material abundance,consumer raise higher demands for beauty contained as well as functions when they buy the products,thus product can not only bring confortable and convenient quality of life to consumer,but also promote the development of enterprises and improve the efficiency.The context of consumer requirements usually defines by investigation and discussion,which does not have outstanding advantages in the fierce market competition.Moreover,consumer often evaluate the products as beautiful by the simplest word,and the product designers cannot objectively and resoningly iterate and update of product forms only by personal experience and inspiration.So,how to effectively and rationally obtain consumer requirements,how to reasonably and scientifically analyze consumer requirements,how to integrate aesthetic into the product design,and how to evaluate the beauty of product form,etc.,that are urgent to be studied.Accordingly,this research through integrating Consumer Requirements,Fuzzy Sets,Kansei Engineering,Aesthetic,Cognitive Psychology,Computer and other comprehensive knowledge,taking vertical air conditioners(VAC)as the research object,that to extract user requirements from consumer comments under massive,diverse and complex data,analyze the theme requirements related to consumer functional requirements,emotional value pursuit and market competion requirements,build a mapping relationship between consumer requirements and product characteristics,and explore the aesthetic evaluation and optimization methods of product forms,aiming to realize the research on the product development and optimization method based on functional,emotional and market.The specific contents are summarized as follows:Firstly,consumer requirements mining of online reviews.Through a large number of consumer comment collection,applying TF-IDF,LDA model and Apriori correlation algorithm for extracting requirement information,the results of the preliminary analysis include function,appearance,service,experience,price and brand,further studied topic words such as function and appearance which is frequently associated with other vocabularies based on the support,confidence and lift index,so that,the functional and emotional requirements were entirely extracted for next research.Secondly,research on consumer satisfaction based on intuitive fuzzy kano model(IFKM).The intuitionistic fuzzy set(IFS)is introduced to solve uncertainty,ambiguity and hesitation of consumer cognition,applied IFKM for user preference kano categories and satisfaction coefficient,and constructed house of quality between consumer requirements and product engineering characteristics which considered market competition benchmark,so the engineering characteristics importance were obtained.Through comparison traditional analysis methods,fuzzy analysis methods and intuitionistic fuzzy analysis methods,the results show that intuitionistic fuzzy analysis methods are effective and scientific in the process of product development and design based on consumer satisfaction.Thirdly,evaluation and prediction aesthetic of product form.According to the consumer satisfaction,building the aesthetic of product form evaluation knowledge base that supported by mathematical logic,which based on aesthetic cognition,visual perception dynamic theory,gestalt psychology and law of formal beauty,etc.Thus,the implicit VAC form was translated into measurable aesthetic indexes to realize the quantification analysis of product form.In addition,according to the advantages of support vector machine in non-linear fitting,robustness and generalization ability,and relying on the cross-validation method to analyse classic support vector regression(SVR)about hyper-parameters,so that the prediction model was established used best hyper-parameters for aesthetic optimization of product form.Finally,product form aesthetic optimization intelligent design.The morphological method was used to deconstruct design elements of product form,established the product form design element parameter matrix,combined the advantages of the Bezier curve in processing complex,smooth and graceful curves in graphic design,and applied Particle Swarm Optimization(PSO)mechanism in individual learning and group learning,thus to build the optimization model of VAC form aesthetic,and the VAC form aesthetic optimization prototype system based on intelligent hybrid algorithms(VACFAOPS-IHA)was developed.At last,the feeling of VAC form aesthetic and the consumer satisfaction which combined the optimized form and engineering demand were tested,the results show that the product form aesthetic optimization method based on consumer requirement is effective and feasible.The research results will help complete the Aesthetic and crowd intelligence collaboration to innovative design,explore the complexity and uncertainty of user-oriented product form,iterate the design space of product form aesthetic,quickly generate diverse new projects and accomplish different design goals.Furthermore,it is an effective enrichment to the research on the theory and method of product form aesthetic for industrial design field,and also provide computer-aided support of application value for designers.