Title: Vibration control method of eight-bar stamping mechanism based on coupled backstepping method

Authors: Jiangliu Deng

Addresses: Equipment Manufacturing Branch, Guiyang Vocational and Technical College, Guiyang, 550081, China

Abstract: To address the issue of coupling vibration in the eight-bar stamping mechanism, a vibration control approach utilising the coupled backstepping method is introduced. We establish a three-degree-of-freedom vibration model for the eight-bar stamping mechanism and devise a coupled vibration control strategy, leveraging the coupled backstepping method, specifically tailored for the various mass blocks experiencing forces within the vibration model. An output feedback controller is designed, and the coupled backstepping method is employed to vertically control and synchronise the upper crossbeam components, slider components, and base components of the eight-bar stamping mechanism. Experimental findings reveal that, as the operating time of the eight-bar stamping mechanism increases, the vibration speed stabilises at approximately 0 mm/s within 0.5 seconds, thereby demonstrating the effectiveness of the proposed method in achieving coupled vibration control.

Keywords: coupled backstepping; eight-bar stamping mechanism; vibration control; kinematic model; controller.

DOI: 10.1504/IJMIC.2024.142265

International Journal of Modelling, Identification and Control, 2024 Vol.45 No.2/3, pp.178 - 187

Received: 20 Oct 2023
Accepted: 18 Apr 2024
Published online: 16 Oct 2024 *

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