Conceptual Innovation Design Of Product Based On TRIZ And Extenics

Conceptual design is a significant part of providing ideal design for designers.This process can most reflect the creative thinking of the designer,and through the use of existing related technology methods to carry out innovative ideas,to create products with better performance and usage.It is difficult to deal with complex product development process by using an innovative method alone.Complementary advantages among various innovation methods are important ways to improve product quality and design efficiency.Therefore,a model of product concept innovation design process based on TRIZ and Extenics is proposed in order to better drive product innovation.The thesis is mainly focuses on the four aspects:(1)The study of problem analysis method.Based on the acquisition,evaluation and expression of demand,a systematic requirement analysis model is proposed.The functional element method is used to identify the total function information,and to aggregate the sub functional chains to get the total functional structure diagram.By combining the improved current reality tree with the implication system in the extension theory,an analysis method for the root cause of conflict is proposed.(2)The product concept integration innovation solution model is established.First,by simplifying methon,the TRIZ conflict resolution matrix is obtained in the mechanical field,and a visual interface is developed with the VB software.Then,using the formalized expression method of basic element theory and the theory of basic element expansion analysis,the conflict problem is solved.Finally,aiming at the drawbacks of the modeling process and the standard solution process,we build a product conceptual integration solution based on the basic expansion analysis.(3)Method of scheme synthesis and evaluation based on extension genetic algorithm.For all kinds of innovative schemes,the scheme of extension genetic algorithm is synthesized and evaluated by making full use of the global searching ability of genetic algorithm and the quantitative analysis of the extension comprehensive evaluation method,combining with the fitness function,the iterative termination criteria,the evaluation index acquisition and the calculation method of the weight value.(4)By using TRIZ and Extenics,the product concept innovation design model is verified.By extracting the information of product demand,the design target is determined.The functional structure model of the product is obtained by the functional element method and the aggregation of each sub function chain.The root cause analysis method is used to identify and identify product conflicts.The integrated innovation method is used to solve each functional element.Combined with morphological matrix and Quantitative evaluation method,a product conceptual innovation design model based on TRIZ and extenics is established.Finally,a new type of ice breaker with a butterfly spring damping structure is used to verify the design model.(5)The optimal design of the conceptual structure of the key parts of the new ice crusher.Three dimensional modeling of crusher transmission shaft conceptual structure is carried out by Solidworks,then is imported into Workbench software to conduct parameter optimization analysis and obtain reasonable size parameters.The inherent properties of the structure are analyzed by modal analysis to avoid the harm caused by the resonance.This research provides a feasible train of thought for product integration innovation and ice breaking machine structure design.