Summary
Initially focused on suppressing Vortex-Induced Vibrations (VIV) to mitigate their detrimental effects on engineering structures, ongoing research has shifted towards harnessing VIV for energy. Such VIV-based energy harvester can be a promising alternative to rotor-based installations in low speed water flow conditions. However, the inherent nature of VIV limits such a device to nominally function in its lock-in regime. This work suggests to broaden the nominal range by shifting the lock-in range with the help of virtual springs.
