摘要
针对整体叶轮加工过程中半精/精加工工艺,提出一种基于再生型颤振控制的整体叶轮非均匀余量加工工艺优化策略。借助有限元分析软件获取工艺系统的近似铣削力系数和固有频率,基于再生型颤振分析理论建立了均匀余量叶片和非均匀余量铣削加工稳定性极限叶瓣对比图。最后通过对均匀余量和非均匀余量两种叶片进行切削试验验证,证明了该非均匀余量工艺优化设计策略对抑制颤振有明显的效果,对整体叶轮实际加工和生产有一定的指导意义。
In view of the Semi-finishing and finishing process of the integral impeller,an optimization strategy for the processing process of the integral impeller with non-uniform allowance based on regenerative flutter control was proposed.By using the finite element analysis software to obtain the approximate milling force coefficient and natural frequency of the process system,and based on the regenerative flutter analysis theory,the comparative diagram of the ultimate stability lobes of the milling process with uniform allowance and non-uniform allowance was established.Finally,two kinds of blades with uniform allowance and non-uniform allowance are tested and verified by cutting experiments,and it is proved that the optimization design strategy of non-uniform allowance process has obvious effect on suppressing flutter.It has certain guiding significance for the actual machining and production of integral impeller.
作者
吴雁
王开发
WU Yan;WANG Kaifa(School of Mechanical Engineering,Shanghai Institute of Technology,Shanghai 201418,CHN)
出处
《制造技术与机床》
北大核心
2020年第3期62-65,共4页
Manufacturing Technology & Machine Tool
关键词
整体叶轮
颤振控制
非均匀余量
试验验证
integral impeller
flutter control
non-uniform allowance
experimental verification
作者简介
第一作者:吴雁,女,1970年生,博士,研究方向为复杂曲面多轴铣削加工精度的研究,已发表论文20余篇。
