摘要
通过应用弹性波的衍射与动应力集中理论，剖析了机器人超声弹性研磨中工具与磨料作用的接触应力与加工效果之间的内在联系，论证了利用接触应力识别和预估加工效果的可行性，并通过对接触应力的数值仿真，描述了工艺参数变化对加工效果的影响规律，从而为优化机器人超声弹性研磨自由曲面的加工过程开辟了途径。
On the basis of the theory of diffraction of elastic wavesand dynamic stress concentalion, the relationship between thepolishing results and the contact stress, which is caused by theultrasonic shock of the elastic polishing tool on abusive particles, isstudied. The feasibility that the technological parameters can bepredicted by the contact stress is yenned. The regularities thattechnological factors influence polishing resultS are made known bynumerical simulation of the contact stress. The research workprovides an effechve means for optimizing the machining pcness ofthe robotic elastic ultra8Onic POlishing on free-form surfaces bytheoretical analysis.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2000年第1期71-74,82,共5页
Journal of Mechanical Engineering
基金
国家自然科学基金
关键词
机器人
超声研磨
自由曲面
应力波
数值仿真
Rohat Ultrasonic polishing Free-form surfacesStress wave Numerical simulation
