基于特征的飞机框肋件参数化设计与装配

Parametric Design of Aircraft Frame Rib Parts and Assembly Based on Feature

针对飞机框肋件设计中存在的重复工作量大、设计模型柔性差、缺乏对后续CAPP所需信息的衔接等问题,提出采用基于特征的参数化建模方法,利用visual Basic6.0对三维建模软件SolidWorks进行二次开发,建立飞机框肋件的交互式设计与装配系统。通过某歼击机典型框肋件实例说明具体设计方法,最终实现模型的尺寸驱动以及零件间的智能装配,达到缩短设计周期,提高零件生产效率,提升设计柔性目的。

In connect with large amount of repetitive labor and poorly flexible of designed model and lack of access to the information needed for subsequent capp processes in the design process for aircraft frame ribbed parts,this paper proposes using feature-based parametric modeling method by the way of taking the secondary development of 3D modeling software SolidWorks by using visual Basic6.0,in order to establish a Interactive design and assembly system for aircraft frame rib parts.The specific design method is illustrated by an example of a typical frame rib of a fighter,and realize the size driven of the model and the intelligent assembly between the parts are realized to achieve shortened design cycle,improve parts production efficiency,and enhance design flexibility.