In design process of virtual prototyping of complex products,it has already become the most urgent problem to be solved that discovery methods of resources cannot integrate with functional model of complex products.An effective and feasible approach to resource discovery based on function requirement semantics was proposed herein.The functional model and the function requirement ontology was first built,which provided an unified manner to describe the function requirements semantically.Furthermore,virtual prototyping model ontology were defined,and the method of resource discovery based on function requirement semantics was designed.Finally,the system implementation architecture was built up.

针对复杂产品虚拟样机概念设计中资源发现方法无法和产品功能模型相集成的问题,提出一种基于功能需求语义的资源发现方法。通过建立功能模型，定义功能需求本体，消除了用户对功能描述方式的差异,同时构建了虚拟样机模型本体，并给出了基于功能需求的资源发现算法，最后，构建了系统实现的体系结构。

虚拟样机, 功能需求本体, 功能模型, 资源发现