摘要
基于流体动力学对狭缝射流的喷射特性展开了仿真分析,狭缝孔径越小射流流束能量越集中受"W"型影响越小。建立了狭缝射流绕中心自转时材料去除的理论模型,通过实验和仿真分析验证了该模型的准确性。以狭缝喷嘴的中心点为旋转中心能获得准高斯型的去除函数可以提升狭缝喷嘴对表面面形误差的修形控制能力,该方法具有良好的应用前景。
An optimal method to obtain quasi-Gaussian material removal function is presented based on slit nozzle jet polishing with self-rotation. The characteristic of slit jet polishing is studied through fluid dynamic simulation. It demonstrates that the jet stream becomes more concentrated and the ‘W’ shape influence can be weakened when the dimension of the slit nozzle become smaller. The theoretical material removal model of self-rotation slit nozzle jet polishing is established. It is verified the material function is quasi-Gaussian by simulation and fixed point polishing experiment. The deterministic processing ability of the self-rotation slit nozzle jet polishing will be improved and it will have a good application prospect.
作者
彭文强
尹韶辉
PENG Wen-qiang;YIN Shao-hui(College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082;College of Aerospace Science and Engineering,National University of Defense and Technology,Changsha 410073)
出处
《航空精密制造技术》
2019年第6期1-4,共4页
Aviation Precision Manufacturing Technology
基金
博士后科学基金(2019M652754)
国家自然科学基金(61505259)资助项目
关键词
射流抛光
狭缝喷嘴
高斯型
去除函数
确定性修形
jet polishing
slit nozzle
Gaussian
removal function
deterministic process
