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Article

Design of Two-Axial Actuator for Controlled Vibration Damper for Large Rams

1
Research Center of Manufacturing Technology, Czech Technical University in Prague, 128 00 Prague, Czech Republic
2
TOS KUŘIM–OS, a.s., 664 34 Kuřim, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Zhao-Dong Xu, Siu-Siu Guo and Jinkoo Kim
Actuators 2021, 10(8), 199; https://doi.org/10.3390/act10080199
Received: 12 July 2021 / Revised: 12 August 2021 / Accepted: 16 August 2021 / Published: 19 August 2021
(This article belongs to the Special Issue Vibration Control and Structure Health Monitoring)
Machine tool rams are important constructional elements found on vertical lathes as well as on many other machines. In most cases, a machine tool ram constitutes an assembly with significant dynamic compliance that affects the machine’s ability to achieve stable cutting conditions. There are various solutions for increasing a machine tool ram’s stiffness and damping. This paper describes an innovative concept of a two-axial electromagnetic actuator for controlled vibration dampers with high dynamic force values. The described solution is purposefully based on the use of standard electric drives. As a result, the size of the actuator is easier to scale to the required application. The solution is designed as a spacer between the end of the ram and the head. The paper presents the actuator concept, construction design, current control loop solution and experimental verification of the controlled vibration damper’s function on the test ram in detail. The presented position measurement concept will enable the use of non-contact position sensors for motor commutation as well as for possible use in vibration suppression control. Applications can be expected mainly in the field of vibration suppression of vertical rams of large machine tools. View Full-Text
Keywords: active vibration damper; controlled vibration damper; machine tool rams; vibration damping; actuator for vibration damping active vibration damper; controlled vibration damper; machine tool rams; vibration damping; actuator for vibration damping
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MDPI and ACS Style

Novotný, L.; Červenka, J.; Sulitka, M.; Švéda, J.; Janota, M.; Kupka, P. Design of Two-Axial Actuator for Controlled Vibration Damper for Large Rams. Actuators 2021, 10, 199. https://doi.org/10.3390/act10080199

AMA Style

Novotný L, Červenka J, Sulitka M, Švéda J, Janota M, Kupka P. Design of Two-Axial Actuator for Controlled Vibration Damper for Large Rams. Actuators. 2021; 10(8):199. https://doi.org/10.3390/act10080199

Chicago/Turabian Style

Novotný, Lukáš, Jaroslav Červenka, Matěj Sulitka, Jiří Švéda, Miroslav Janota, and Petr Kupka. 2021. "Design of Two-Axial Actuator for Controlled Vibration Damper for Large Rams" Actuators 10, no. 8: 199. https://doi.org/10.3390/act10080199

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