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Multi-physics modelling of piezoelectric pavement system for energy harvesting under traffic loading
Published in International Journal of Pavement Engineering, 2022
Lukai Guo, Hao Wang, Laura Soares, Qing Lu, Lelio Brito
The laboratory-based FEMs were built by simplifying the electronic components inside the PZ-EHPS with a lumped-element model. The lumped-element model is widely used in numerical analysis to simplify the spatially distributed physical system of electronic components into a topology electronic circuit. Such modification can significantly improve the computational efficiency of FEM on the electrical circuit part, especially for a multi-physics model involving both time-dependent mechanical and electrical responses. To verify the accuracy of FEM with experimental results, the simulated model was built with the same dimension of the specimen fabricated in the laboratory, as shown in Figure 3(a,b).