In this paper, an adaptive electromagnetic energy harvester is proposed and analyzed. It is composed of an oscillating mass equipped with an electromagnetic transducer, whose pins are connected to a resonant resistive–inductive–capacitive electric circuit in order to increase its effective bandwidth. Closed-form expressions for the optimal circuit parameters are presented, which maximize the power harvested by the device under harmonic excitation. The harvesting efficiency, defined as the ratio between the harvested power and the power absorbed by the oscillating device, is also reported. It is used as an alternative objective function for the optimization of the harvester circuit parameters.

References

References
1.
Tang
,
L.
,
Yang
,
Y.
, and
Soh
,
C.
,
2010
, “
Toward Broadband Vibration-Based Energy Harvesting
,”
J. Intell. Mater. Syst. Struct.
,
21
(
18
), pp.
1867
1897
.
2.
Cao
,
J.
,
Zhou
,
S.
,
Inman
,
D.
, and
Lin
,
J.
,
2015
, “
Nonlinear Dynamic Characteristics of Variable Inclination Magnetically Coupled Piezoelectric Energy Harvesters
,”
ASME J. Vib. Acoust.
,
137
(
2
), p.
021015
.
3.
Geiyer
,
D.
, and
Kauffman
,
J.
,
2015
, “
Chaotification as a Means of Broadband Energy Harvesting With Piezoelectric Materials
,”
ASME J. Vib. Acoust.
,
137
(
5
), p.
051005
.
4.
Harne
,
R.
,
2013
, “
Modeling and Analysis of Distributed Electromagnetic Oscillators for Broadband Vibration Attenuation and Concurrent Energy Harvesting
,”
Appl. Math. Modell.
,
37
(
6
), pp.
4360
4370
.
5.
Xiong
,
X.
, and
Oyadiji
,
O.
,
2015
, “
Tapered Two-Layer Broadband Vibration Energy Harvesters
,”
ASME J. Vib. Acoust.
,
137
(
3
), p.
031014
.
6.
Aladwani
,
A.
,
Aldraihem
,
O.
, and
Baz
,
A.
,
2015
, “
Piezoelectric Vibration Energy Harvesting From a Two-Dimensional Coupled Acoustic-Structure System With a Dynamic Magnifier
,”
ASME J. Vib. Acoust.
,
137
(
3
), p.
031002
.
7.
Bisegna
,
P.
,
Caruso
,
G.
, and
Vairo
,
G.
,
2013
, “
Coupled Optimization of Tuned-Mass Energy Harvesters Accounting for Host Structure Dynamics
,”
J. Intell. Mater. Syst. Struct.
,
25
(13)
, pp.
1553
1565
.
8.
Renno
,
J.
,
Daqaq
,
M.
, and
Inman
,
D.
,
2009
, “
On the Optimal Energy Harvesting From a Vibration Source
,”
J. Sound Vib.
,
320
(
1–2
), pp.
386
405
.
9.
Stephen
,
N.
,
2006
, “
On Energy Harvesting From Ambient Vibration
,”
J. Sound Vib.
,
293
(
1–2
), pp.
409
425
.
10.
Wang
,
X.
, and
Lin
,
L.
,
2013
, “
Dimensionless Optimization of Piezoelectric Vibration Energy Harvesters With Different Interface Circuits
,”
Smart Mater. Struct.
,
22
(
8
), p.
085011
.
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