The Parametric Design Technology Of Planetypical Parts Based On MBD

The plane parts as the basic unit of the plane’s structure, its design quality and efficiency will directly affect the plane design and manufacturing process, especially the typical parts.There are a lot of similar work and the demand that quickness, reliability and standardization in part design, this paper proposed that parametric design modeling technology based on MBD for the plane typical parts that has high utilization rate. The technology use the environment platform that build by CAA-RADE and the Visual Studio 2005 to do the secondary development to CATIA software, the typical parts model library was built by CAA program, then realized reuse for the parts.This paper analyzed the characteristics of plane part structure, the typical parts include of machining typical parts, profiles, sheet metal parts, typical features and other kinds. With the support of parametric technology, combined with MBD technology to establish the MBD model of the typical parts; Based on template matching model technology and level-to-level administration technology, the paper studied the model management and data management technology under the MBD model of library, realized the models sharing in internal resources; In order to reuse the model in the library, the implementation of the variant design function in super copy. With the support of the above three modules, the developed the parametric design modeling system insert CATIA software with no gap, the system is very convenient for the designers. The system platform has many friendly interactive interfaces, through operating the interfaces the parametric model will be created from nothing, the management of the models’ information and data will be realized. The platform can preview 3D model and realize the exchange between interface and Excel database,etc.The parametric design and modeling system of the plane typical parts based on MBD has established. It helps to improve the quality of the design of plane parts, reduces the repeated work greatly, shorten the design time, and improve the efficiency of relevant product.