This paper introduces a boring bar system which includes an automatically tuned internal vibration absorber, called a tuned mass damper (TMD). The TMD head can be attached to boring bars with a wide range of lengths. An electromagnetic impulse force actuator is developed to measure the frequency response function (FRF) of the boring bar with an integrated power screw. A portable servo motor is attached to the power screw for adaptive tuning of the vibration damper's stiffness. The measurement and tuning cycle is automated until the negative real part of the FRF is optimized to maximize the chatter-free depth of cut. The system is experimentally validated on boring bars with a wide range of length to diameter ratios.

本文介绍了一种镗杆系统，其中包括一个自动调谐的内部减振器，称为调谐质量阻尼器 (TMD)。TMD 头可以连接到各种长度的镗杆。开发了一种电磁冲击力执行器，用于测量带有集成动力螺杆的镗杆的频率响应函数 (FRF)。便携式伺服电机连接到动力螺杆上，用于自适应调整减振器的刚度。测量和调谐循环是自动化的，直到 FRF 的负实部被优化以最大化无颤动的切削深度。该系统在具有广泛长度直径比的镗杆上进行了实验验证。