A low frequency and broadband piezoelectric energy harvester using asymmetrically serials connected double clamped–clamped beams

A novel structure of piezoelectric energy harvester was developed using double clamped–clamped beams serials connected by a rectangular frame, coupled with a proof mass and supporting mass near the center of upper and lower beams. The serials connection has a significant effect on reducing the resonance frequency, which is predicted by theoretical analysis and validated by experimental, and a reduction of 36.7% is achieved compared with the single clamped–clamped beam. More importantly, the bandwidth of the power spectrum is 36.4% wider, by introducing an asymmetry of 1 mm between the proof and supporting mass, than that of the symmetric setup. More than 0.8 mW ranging from 144 to 170 Hz is obtained near the two peaks of 0.992 mW at 150 Hz and 0.844 mW at 165 Hz, respectively. For its lower frequency, broader bandwidth and compact volume, the asymmetric harvester has promising application in wireless sensors networks.

[1]  Paul K. Wright,et al.  A piezoelectric vibration based generator for wireless electronics , 2004 .

[2]  Huan Xue,et al.  Broadband piezoelectric energy harvesting devices using multiple bimorphs with different operating frequencies , 2008, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[3]  Sutrisno Ibrahim,et al.  A review on frequency tuning methods for piezoelectric energy harvesting systems , 2012 .

[4]  Robert Bogue,et al.  Energy harvesting and wireless sensors: a review of recent developments , 2009 .

[5]  Haosu Luo,et al.  Growth and characterization of relaxor ferroelectric PMNT single crystals , 1999 .

[6]  Dibin Zhu,et al.  A comparison of power output from linear and nonlinear kinetic energy harvesters using real vibration data , 2013 .

[7]  William W. Clark,et al.  Piezoelectric Energy Harvesting with a Clamped Circular Plate: Experimental Study , 2005 .

[8]  Lei Zuo,et al.  Enhanced vibration energy harvesting using dual-mass systems , 2011 .

[9]  Jan M. Rabaey,et al.  A study of low level vibrations as a power source for wireless sensor nodes , 2003, Comput. Commun..

[10]  Henry A. Sodano,et al.  A review of power harvesting using piezoelectric materials (2003–2006) , 2007 .

[11]  Karen Willcox,et al.  Kinetics and kinematics for translational motions in microgravity during parabolic flight. , 2009, Aviation, space, and environmental medicine.

[12]  S. Beeby,et al.  Strategies for increasing the operating frequency range of vibration energy harvesters: a review , 2010 .

[13]  S. Beeby,et al.  Energy harvesting vibration sources for microsystems applications , 2006 .

[14]  Sang-Gook Kim,et al.  DESIGN CONSIDERATIONS FOR MEMS-SCALE PIEZOELECTRIC MECHANICAL VIBRATION ENERGY HARVESTERS , 2005 .

[15]  Albert P. Pisano,et al.  Corrugated aluminum nitride energy harvesters for high energy conversion effectiveness , 2011 .

[16]  Ann Marie Sastry,et al.  Powering MEMS portable devices—a review of non-regenerative and regenerative power supply systems with special emphasis on piezoelectric energy harvesting systems , 2008 .

[17]  Wei Wang,et al.  Piezoelectric energy harvesting using shear mode 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 single crystal cantilever , 2010 .

[18]  W. J. Venstra,et al.  Nonlinear modal interactions in clamped-clamped mechanical resonators. , 2010, Physical review letters.

[19]  Xingzhong Zhao,et al.  Energy harvesting with piezoelectric drum transducer , 2007 .

[20]  M. Collet,et al.  Active vibration isolation of electronic components by piezocomposite clamped–clamped beam , 2011 .

[21]  Sang-Gook Kim,et al.  Ultra-wide bandwidth piezoelectric energy harvesting , 2011 .