Wideband auto-tunable vibration energy harvester using change in centre of gravity

Design of MEMS piezoelectric harvesters with electrostatically adjustable resonance frequency

(2016) H. Madinei et al.   MECHANICAL SYSTEMS AND SIGNAL PROCESSING

Energy harvesting from low frequency applications using piezoelectric materials

(2014) Huidong Li et al.   Applied Physics Reviews

Experimental passive self-tuning behavior of a beam resonator with sliding proof mass

(2013) Lindsay M. Miller et al.   JOURNAL OF SOUND AND VIBRATION

New approach of frequency tuning for kinetic energy harvesters

(2011) Joerg Schaufuss et al.   SENSORS AND ACTUATORS A-PHYSICAL

Strategies for increasing the operating frequency range of vibration energy harvesters: a review

(2009) Dibin Zhu et al.   MEASUREMENT SCIENCE and TECHNOLOGY

Energy Scavenging From Low-Frequency Vibrations by Using Frequency Up-Conversion for Wireless Sensor Applications

(2008) Haluk Kulah et al.   IEEE SENSORS JOURNAL

A vibration energy harvesting device with bidirectional resonance frequency tunability

(2008) Vinod R Challa et al.   Smart Materials and Structures