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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Vibration Control Using Multilayer Piezoelectric Actuators: Towards Chatter Supression in Turning Operations

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Author(s):
Giuliana Sardi Venter [1] ; Maíra Martins da Silva [2]
Total Authors: 2
Affiliation:
[1] Universidade Federal do Paraná. Departamento de Engenharia Mecânica - Brasil
[2] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Engenharia Mecânica - Brasil
Total Affiliations: 2
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 23, n. 4 2020-07-20.
Abstract

Abstract Chatter causes poor surface quality and damage to tools in machining. Therefore, strategies for chatter monitoring and reduction are constantly under investigation. Among these strategies, the use of piezoelectric layers embedded in the tool-holder as sensors/actuators for control strategies had been proposed for improving the stability limit reducing the system vibration. Nevertheless, actuators implemented using a single piezoelectric layer may fail to suppress chatter due to its limited actuation power. A method for assembling a series multilayer piezoelectric actuator is then proposed, which can provide a better performance and ultimately suppress chatter in turning operations. This actuator is used with passive and active control and the system response is investigated using frequency response functions. Two fixation conditions are tested to analyze the robustness of the control strategies. The results show that the use of a multilayer piezoelectric actuator made it possible for a greater reduction in vibration amplitude in the chatter frequency. (AU)

FAPESP's process: 16/11309-0 - The study, development and application of a hybrid process: Additive Manufacturing (AM) plus High Speed Machining/Grinding (HSM/G)
Grantee:Reginaldo Teixeira Coelho
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/23108-4 - Active control for chatter reduction in turning process using multilayer piezoelectric devices
Grantee:Giuliana Sardi Venter
Support Opportunities: Scholarships in Brazil - Doctorate