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Product platform is the core of product family,and establishing reasonably the product platform is crucial to increase product design adaptability.Axiomatic design is utilized as framework,and a design method for product platform is put forward based on functional requirements analysis.Considering the link between customer needs and product quality characteristics,product functional requirements are classified into basic functional requirements,expectable functional requirements and adjunctive functional requirements based on Kano model,and their concepts are defined.The functional requirements are zigzagging mapping to design parameters,and the design matrix is created.The design relationship matrix of the product is built by analyzing the fluency relationship between functional requirement and design parameter,and the extension clustering algorithm is utilized to cluster the elements in design relationship matrix.The module realizing basic functional requirements of product family is defined as common module.Based on above foundations,the platform parameters are selected by analyzing the sensitivity of the design parameters,and the clustering algorithm is applied to determine the sharing strategy of platform parameters.This method of product platform design is validated by a case study of electro-hydraulic dram brake design.
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