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… Click to show full 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.
               
Click one of the above tabs to view related content.