<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The problem of active vibration control of weakly damped mechanical structures is potentially unstable modes of vibrations due to the positive feedback for some vibration modes. The paper will discuss the change of positive feedback on the negative one using all-pass discrete-time filters. These filters can be arranged in a cascade to stabilize many potentially unstable modes. The piezoelectric actuator as a source of force is used to damp vibration.</p></abstract>

The problem of active vibration control of weakly damped mechanical structures is potentially unstable modes of vibrations due to the positive feedback for some vibration modes. The paper will discuss the change of positive feedback on the negative one using all-pass discrete-time filters. These filters can be arranged in a cascade to stabilize many potentially unstable modes. The piezoelectric actuator as a source of force is used to damp vibration.

All-Pass Filters in the Systems of Active Vibration Control of Weakly-Damped Systems

Faculty of Mechanical Engineering, VSB – the Technical University of Ostrava

Department of Control Systems and Instrumentation

Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava

Institute of Applied Mechanics and Mechatronics

Strojnícky časopis - Journal of Mechanical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The problem of active vibration control of weakly damped mechanical structures is potentially unstable modes of vibrations due to the positive feedback for...

All-Pass Filters in the Systems of Active Vibration Control of Weakly-Damped Systems

Published Online: Dec 26, 2018

Page range: 65 - 74

DOI: https://doi.org/10.2478/scjme-2018-0048

Keywords
active vibration control, all-pass filter, piezo-actuator

© 2018 Tůma Jiří et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

All-Pass Filters in the Systems of Active Vibration Control of Weakly-Damped Systems

Published Online: Dec 26, 2018

Page range: 65 - 74

DOI: https://doi.org/10.2478/scjme-2018-0048

Keywordsactive vibration control, all-pass filter, piezo-actuator

© 2018 Tůma Jiří et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
active vibration control, all-pass filter, piezo-actuator