Sensitivity analysis of numerical model parameters for optimized PEH responses

With the increasing popularity of wearable devices, typically employed in fitness and health monitoring, there is an evident need to extend their autonomy replace conventional power sources with environmentally friendly alternatives. Piezoelectric energy harvesting systems, optimized for collecting kinetic from random human motion transduce it into electrical energy, represent a viable option powering autonomous wearables. Since established analytical methods are unable model behaviour piezoelectric harvesters complex geometries, suitable numerical models be design. This implies thorough study focused on mechanical engineering design optimization purposes how finite element type mesh density affect uncoupled modal coupled transient responses new class optimised configurations studied devices.