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Reducing Uncertainty in Shunt Damping by Model-Predictive Product Stiffness Control in a Single Point Incremental Forming Process

Hoppe, Florian ; Knoll, Maximilian ; Götz, Benedict ; Schaeffner, Maximilian ; Groche, Peter (2022):
Reducing Uncertainty in Shunt Damping by Model-Predictive Product Stiffness Control in a Single Point Incremental Forming Process. (Publisher's Version)
In: Applied Mechanics and Materials, 885, pp. 35-47. Trans Tech Publications, ISSN 1660-9336, e-ISSN 1662-7482,
DOI: 10.26083/tuprints-00020444,
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Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: Reducing Uncertainty in Shunt Damping by Model-Predictive Product Stiffness Control in a Single Point Incremental Forming Process
Language: English
Abstract:

The stiffness of metal formed products strongly affects the dynamic behavior of structures in which they are integrated. Forming processes underlie short and long-term variations which cause the stiffness to be uncertain.In the application of resonant shunted piezoelectric transducers for vibration attenuation, uncertain stiffness may cause significant reduction in the vibration attenuation performance due to imprecise tuning. In the past, large efforts were made to control one or more geometrical feature of products while weightier features that cause uncertainty have not been addressed.In this paper, a single point incremental forming process of a membrane-like spring element on a servo press with a 3 degrees of freedom drive system is investigated. This spring element is used in a beam support for lateral vibration attenuation with resonant shunted transducers as well as axial buckling stabilization.To reduce uncertainty caused by process variations, an offline closed-loop control of product stiffness is presented. Different product and forming criteria are integrated into a control approach based on an optimization routine. By making use of a model-based prediction of the product properties, the approach shows how to realize a multi-objective control.

Journal or Publication Title: Applied Mechanics and Materials
Volume of the journal: 885
Publisher: Trans Tech Publications
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
16 Department of Mechanical Engineering > Research group System Reliability, Adaptive Structures, and Machine Acoustics (SAM)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 805: Control of Uncertainty in Load-Carrying Structures in Mechanical Engineering
Date Deposited: 10 Feb 2022 13:30
Last Modified: 10 Feb 2022 13:31
DOI: 10.26083/tuprints-00020444
URL / URN: https://doi.org/10.4028/www.scientific.net/AMM.885...
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-204442
Additional Information:

Keywords: Closed-Loop Control, Forming, Prediction, Shunt Damping

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20444
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