Self-sensing active control of emulated tangential tool vibration hardware-in-the-loop

This study tests the dual functionality of a piezoelectric transducer for active control of emulated tool vibration. The concept of a self-sensing actuator is here applied jointly with adaptive feedback active vibration control as hardware-in-the-loop. It controls pre-recorded tangential tool vibrations at the tool holder's first bending mode. This work shows that the selected building blocks of the complete control loop are key to the design. It opens perspectives for a single transducer design and a simultaneous tool condition monitoring function. 10 dB attenuation of tool vibrations, bending-mode-focussed control command and feedback signal-to-noise-ratio of 20 demonstrate the system's functionality.

Automated summary

This study demonstrates the dual functionality of a piezoelectric transducer in actively controlling simulated tool vibrations, using self-sensing actuators and adaptive feedback control. The selected building blocks of the complete control loop were found to be crucial for the system design, allowing potential for a single transducer design and simultaneous tool condition monitoring. The system showed 10 dB attenuation of tool vibrations, bending-mode-focused control, and a feedback signal-to-noise ratio of 20, indicating its functionality.