Abstract: Based on the characteristics of the composites unmanned aerial vehicle(UAV) structure, the
whole design process is described in detail. According to the studying of CATIA parameterization
correlation method and the top-down design with the core of “layout sketch”, parameterization
assembly correlation design method of UAV structure is proposed. Model rapid adjustment will be
realized on it. Finally the effectiveness of the modeling method is verified by an example of an UAV
structure.

Key words: unmanned aerial vehicle, parametricdesign, associated design, layoutsketch