A rail-borne piezoelectric transducer for energy harvesting of railway vibration

A periodic folded piezoelectric beam for efficient vibration energy harvesting

Periodic piezoelectric beams have been used for broadband vibration energy harvesting in recent years. In this paper, a periodic folded piezoelectric beam (PFPB) is introduced. The PFPB has special features that distinguish it from other periodic piezoelectric beams. The Adomian decomposition method (ADM) is used to calculate the first two band gaps andtwelve natural frequencies of the PF...

Artificial piezoelectric grass for energy harvesting from turbulence-induced vibration

The primary objective of this research is to develop a deploy-and-forget energy harvesting device for use in low-velocity, highly turbulent fluid flow environments i.e. streams or ventilation systems. The work presented here focuses on a novel, lightweight, highly robust, energy harvester design referred to as piezoelectric grass. This biologically inspired design consists of an array of cantil...

Piezoelectric Energy Harvesting Devices for Low Frequency Vibration Applications

Energy harvesting from vibration using a piezoelectric membrane

In this paper we investigate the capability of harvesting the electric energy from mechanical vibrations in a dynamic environment through a unimorph piezoelectric membrane transducer. Due to the impedance matrices connecting the efforts and flows of the membrane, we have established the dynamic electric equivalent circuit of the transducer. In a first study and in order to validate theoretical ...

harvesting of energy from human walking with a piezoelectric transducer to supply a medical instrument

abstract introduction: nowadays, the advanced technology of designing electronic circuits in very small size and with very low power consumption has led to development of wearable and implantable medical devices. however, the electronic circuits need power supply that is usually provided by relatively large and heavy batteries. the discharged batteries have to replaced or recharged for long tim...