Abstract: To enhance the adaptability of product family design under mass customization, based on the analysis of customer needs, this paper analyzes the functional requirements of the products and divides them into three categories. Based on the axiom design and general design theory, it also describes the functional structure concept with the meta-model, and proposes the functional requirements modeling and analysis method for adaptability oriented product platform, which transforms customer demand for products into functional requirements of the product, forms functional concept space, select the appropriate structural concepts and combines them into a structural concept space. Then, according to the function-structure mapping, it establishes and rearranges the design matrix, which determines the design parameters of various types of product platform by analyzing the correspondence between functional requirements and design parameters and their sensitivity. Finally, by taking the power-driven hydraulic disc brake as an example, this paper illustrates the functional requirements modeling and analysis process of the product platform.

Key words: product platform, adaptability, functional requirements, metamodel, mass customization