This paper presents a study on a novel vibration energy harvesting system that incorporates dielectric elastomer (DE) membranes. The proposed system is founded upon the principles of oscillating water column devices used as wave energy converters with an inflated, circular DE membrane [1], and introduces an innovative design that utilizes Tuned Liquid Column Dampers (TLCDs) [2]. The resulting device exhibits strongly nonlinear behavior due to the electro-hyperelastic nature of the DE membrane and the compressibility of the air chamber between the TLCD’s water column and the membrane. A lumped-parameter model is developed to describe the system, leading to a set of coupled nonlinear equations governing its dynamic response. To validate the theoretical model, experimental investigations were carried out in the Laboratory of Experimental Dynamics at the University of Palermo, Italy. A comparison between numerical simulations and experimental data confirms the model’s ability to accurately represent the system’s physical behavior. Additionally, the energy harvesting performance of the proposed device are numerically investigated and compared with other TLCD based solution in the literature [3]. REFERENCES [1] G. P. Rosati Papini, G. Moretti, R. Vertechy and M. Fontana, Control of an oscillating water column wave energy converter based on dielectric elastomer generator. Nonlinear Dynamics (2018) 92: 181–202. [2] A. Di Matteo, F. Lo Iacono, G. Navarra and A. Pirrotta, Innovative modeling of tuned liquid column damper motion. Communications in Nonlinear Science and Numerical Simulation (2015) 23: 229–244. [3] H. Ding, T.-Y. Zhou, J.-T. Wang, O. Altay and J. Zhang, Energy harvesting in tuned liquid column dampers using savonius type hydrokinetic turbines. Mechanical Systems and Signal Processing (2023) 186: 109846.