Gosliga, Julian S.Ganilova, Olga A.2016-11-162016-11-162016Gosliga J. S. Improvement of Piezoelectric Energy Harvester Efficiency Through Optimal Patch Configuration / J. S. Gosliga, O. A. Ganilova // Nonlinear Dynamics–2016 (ND-KhPI2016) : proceedings of 5th International Conference, dedicated to the 90th anniversary of Academician V. L. Rvachev, September 27-30, 2016 = Нелінійна динаміка–2016 : тези доп. 5-ї Міжнар. конф., 27-30 вересня 2016 р. – Kharkov : NTU "KhPI", 2016. – P. 92-99.https://repository.kpi.kharkov.ua/handle/KhPI-Press/24675The aim of this paper is to explore how to improve the efficiency of a vibrating hybrid energy harvester through changing the patch configuration. The results of this work identify the patch configuration that maximises output while using the same amount of piezoelectric material. Using 6 patches was found to be the most efficient when looking at the energy output from a single cycle. Stress distributions generated using ANSYS show that this was because the patches were all located in areas of high stress. The 2 patch configuration resulted in the highest energy conversion at low frequencies (peak loss factor <50Hz) while the performance of the 6 patch configuration was characterised by high energy conversion over a wider range of frequencies.enenergy harvestinghybridpiezoelectricshape-memorypatch optimisationArticle