直升机, 数字样机, 区域化, 上下文设计, 模型链接

In order to improve helicopter collaborative design, a method of regionalization design in context for DMU was proposed and the system frame for implementation of the method was designed. Based on the characteristics of helicopter development, the expression model of DMU regionalization based on hierarchical tree of axis aligned bounding box (AABB) was proposed to search the DMU region; the relationship graphic of model link (RGML) was proposed to express the relationship of model link (RML) in DMU, and the impacts of correlative models in context can be analyzed effectively. The method was used to develop some helicopters, the accuracy rate of models search and the efficiency of models loading from whole helicopter DMU are improved, and the cycle of sub-system optimization and part change is shortened. 