A vibration energy harvesting device with bidirectional resonance frequency tunability

By V. R. Challa, M. G. Prasad, Yong Shi, F. Fisher. 2008

712 citations recorded by the source corpus.

Subfields: Biomedical Engineering, Electrical and Electronic Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/646f8ff0bc329843b66ac5ea6f1ca616ec988b8b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

In Electrical and Electronic Engineering

In Mechanical Engineering

Citations in the corpus

Strategies for increasing the operating frequency range of vibration energy harvesters: a review (2010, background): “Output power (a) and damping (b) versus resonant frequency [22].”
A review on energy harvesting approaches for renewable energies from ambient vibrations and acoustic waves using piezoelectricity (2017, methodology): “Using a similar design, Challa et al [59] proposed a tunable piezoelectric cantilever beam energy harvester for broadband power scavenging (figure 11).”
Tuning a resonant energy harvester using a generalized electrical load (2010, background): “In contrast, Challa et al [5] presents a passive system for tuning where the overall compliance of an energy harvester is modified by a magnetic field acting on the proof mass.”
Improving functionality of vibration energy harvesters using magnets (2012, methodology): “Applying mechanical preload (Hu et al., 2007; Leland and Wright, 2006) and using magnetic forces (Challa et al., 2008, 2011) and piezoelectric actuators (Peters et al., 2009; Wischke et al., 2010) have been widely adopted as the tuning mechanisms.”
Parylene-based electret power generators (2008, neutral): “Macro power generators can have low resonant frequencies around 20 Hz [6], but they are bulky.”
Investigation of Power Harvesting via Parametric Excitations (2009, background): “…have also investigated possible techniques to actively or passively tune the fundamental frequency of the harvester to the excitation frequency (Roundy and Zhang, 2005; Charnegie et al., 2006; Johnson et al., 2006; Shahruz, 2006; Wu et al., 2006; Malkin and Davis, 2007; Challa et al., 2008).”
Survey on broadband techniques for vibration energy harvesting (2013, methodology): “Active resonance tuning by Challa et al. (2008) and Leland and Wright (2006): (a and b) experimental setup and range of resonance frequency tunability by Challa et al.”
Response of uni-modal duffing-type harvesters to random forced excitations (2010, methodology): “For a general function Φ(η1 ,η 2 ,η 3 ,η 4), the response statistics, i.e., �Φ�, can be obtained by multiplying both sides of Equation ( 15 ) by Φ and integrating by parts over the entire space.”