Experimental Verification of Models for Microfabricated Piezoelectric Vibration Energy Harvesters

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An electromechanical finite element model for piezoelectric energy harvester plates (2009, methodology): “Experimental verifications and validations were also reported for the approximate [10,11] and analytical [12,25] (beamtype) distributed parameter electromechanical solutions.”
An experimentally validated bimorph cantilever model for piezoelectric energy harvesting from base excitations (2009, methodology): “The same type of bimorph was recently used by duToit et al [33] for the verification of their Rayleigh–Ritz model.”
On the Role of Nonlinearities in Vibratory Energy Harvesting: A Critical Review and Discussion (2014, background): “Specifically, the nonlinear relationship between the mechanical strain and the electric field was considered by Crawley and Anderson [114], where they experimentally identified the piezoelectric coupling constant and showed that it was significantly nonlinear as a function of the material strain. du”
Issues in mathematical modeling of piezoelectric energy harvesters (2008, result): “In addition, it can be observed that the form of the fundamental mode Rayleigh–Ritz equations [15] is in agreement with the single-mode analytical equations (14) and (15).”