Tuning transient dynamics by induced modal interaction in mechatronic systems. (April 2018)

• Record Type: Journal Article
• Authors: Dohnal, Fadi
• Is Part Of: Mechatronics. Volume 50(2018)
• Page Start: 205
• Page End: 211
• Publication Date: 2018-04
• Subjects: Semi-active vibration control -- Modal energy transfer -- Parametric anti-resonance; Computer integrated manufacturing systems -- Periodicals; Flexible manufacturing systems -- Periodicals; Mechatronics -- Periodicals; Productique -- Périodiques; Fabrication, Systèmes flexibles de -- Périodiques; Mécatronique -- Périodiques; Computer integrated manufacturing systems; Flexible manufacturing systems; Mechatronics; Periodicals; 629.89
• DOI: 10.1016/j.mechatronics.2017.05.010
• Languages: English
• ISSNs: 0957-4158

Abstract

Graphical abstract: Abstract: Introducing time-periodicity in one or more system parameters may lead, in general, to a dangerous and well-known parametric resonance. In contrast to such a resonance, a properly tuned time-periodicity is capable of transferring energy between vibration modes. Time-periodicity in combination with system damping is capable of efficiently extracting vibrational energy from the system and of amplifying the existing damping affecting transient vibrations. Operating the system at such a specific time-periodicity, the system is tuned at a parametric anti-resonance. The present contribution outlines the basic physical interpretation of this concept and summarises the experimental validation for different mechatronic systems. Starting with a theoretical performance measure, all experiments related to this concept are compared qualitatively and the two most successful implementations are discussed in more detail.