The structural function model can be obtained by composing the sub-functions using these composition relationship.
系统的功能结构模型由子功能通过这些组合关系组合得到。
Based on the structural characteristics of bearing flange, the optimization model is established according to the objective function, design variables and constraints, and make a static analysis.
基于支承法兰盘的结构特征，通过目标函数的建立、设计变量的选取以及约束条件的确定建立了优化设计的有限元模型，并对法兰盘进行了静力分析。
It can describe the structural, behavioral and functional knowledge of system in a single model. Moreover, the relation between behavior and function is also created in the model.
这种模型不仅可以描述系统的结构知识和性能知识，还可以描述系统的功能知识，并且建立了功能和性能之间的联系。
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