电流变技术在抑制深孔切削颤振中的应用

针对深孔加工中出现的切削颤振问题,利用电流变液的电流变效应,设计一套基于流动和剪切混合工作模式的电流变减振器。通过对深孔切削系统的动力学模型的建立和分析,得到系统的运动微分方程。利用MATLAB/Sinmulink对动力学模型进行仿真分析并进行实验验证,结果表明电流变减振器能够减小颤振的振幅,且在不同电场强度下具有不同的减振效果。因此通过控制电流变减振器的电场强度可以有效地抑制深孔机床中切削颤振的发生。

Application of Electro-rheological Technology to Chatter Suppression in Deep Hole Cutting

According to the deep hole machine cutting vibration，a set of ERF damper based on the flow and shear mixed model was designed by using the electrorheological effect of ER fluids．Through the establishment and analysis of dynamic model of deep hole cutting system，the motion differential equations of the system was obtained．Using MATLAB/Sinmulink for simulation and experiments were carried out，the results show that the electrorheological fluid damper can reduce the amplitude of flutter，and it has different damping effect under different electric field intensity．Therefore, by controlling the electric field intensity of the electrorheological fluid damper can effectively suppress the occurrence of cutting chatter in deep hole machine．