Piezoelectrics

Analytical Modelling of a Plucked Piezoelectric Bimorph for Energy Harvesting

Energy Harvesting (Energy Harvesting) is a multidisciplinary research area, involving physics, materials science and engineering, with the objective of providing renewable sources of sufficient power to operate targeted low-power applications. …

Characterization of a rotary piezoelectric energy harvester based on plucking excitation for knee-joint wearable applications

Wearable medical and electronic devices demand a similarly wearable electrical power supply.Human-based piezoelectric energy harvesters may be the solution, but the mismatch between thetypical frequencies of human activities and the optimal operating …

Harvesting energy from the dynamic deformation of an aircraft wing under gust loading

Weight reduction and maintenance simplification are high in the agenda of companies and researchers active in the aerospace sector. Energy harvesters are being investigated because they enable the installation of wireless sensor nodes, providing …

The pizzicato knee-joint energy harvester: characterization with biomechanical data and the effect of backpack load

The reduced power requirements of miniaturized electronics offer the opportunity to create devices which rely on energy harvesters for their power supply. In the case of wearable devices, human-based piezoelectric energy Harvesting is particularly …

Plucked piezoelectric bimorphs for knee-joint energy Harvesting: modelling and experimental validation

The modern drive towards mobility and wireless devices is motivating intensive research in energy harvesting technologies. To reduce the battery burden on people, we propose the adoption of a frequency up-conversion strategy for a new piezoelectric …

Pizzicato excitation for wearable energy harvesters

A new technique based on the plucking of flexible piezoelectric material can be used to boost energy harvested to power portable electronic devices.

Plucked piezoelectric bimorphs for energy Harvesting applications

Piezoelectric Materials

Chapter contributed to the book Smart Technologies, World Scientific.

Piezoelectric modelling for an impact actuator

Amplification techniques for piezoelectric actuation are briefly reviewed and an unlatching impact piezo-actuator then proposed. In such a device, a piezoelectric multilayer has the function of imparting kinetic energy to a mass connected to an …

Piezoelectric actuators in micropositioning

Micromachines can be built only with the aid of other machines that have micropositioning abilities. Fast and precise positioning devices are needed to increase reliability and speed in the production of the miniaturized devices. Intensive research …