Global interference and collision detection based on hierarchical OBBTree in the 5-axis machining of impeller

作者：Peng Fangyu^*; Su Yongchun; Zou Xiaoming; Li Bin

来源：China Mechanical Engineering, 2007, 18(3): 304-307.

• impeller
• 5-axis machining
• oriented bounding boxes(OBB)
• collision detection

A collision detection algorithm based on dynamic hierarchical OBBTrees was proposed for the global collision in the 5-axis machining of overlapped area of an impeller. The OBBTrees of the impeller and special milling cutter were built, then the dynamic coordinate transform matrix of OBBTrees in every machining position was formed using the theories of multi rigid body system kinematics. The collision detection was realized by using the separate axis theory. Classifying the OBBTrees and judging the relative motion trend improve the efficiency of global collision detection algorithm.

• 出版日期2007
• 单位华中科技大学