Harvesting low-frequency acoustic energy using quarter-wavelength straight-tube acoustic resonator

Li, Bin; Laviage, Andrew J.; You, Jeong Ho; Kim, Yong-Joe

doi:10.1016/j.apacoust.2013.04.015

Cited by 116 publications

(75 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous studies, placing multiple piezoelectric cantilever plates with 0.7 mm thickness, 0.04 cm height and 0.02 cm width inside the quarter-wavelength resonator reduces the eigenfrequencies of the resonator [4][5]. In figure 5(a), the analytical and numerical calculations for the eigenfrequency shifts are compared when piezoelectric plates are placed along the whole tube and only the first half of the tube near.…”

Section: Eigenfrequency Shift When Placing Multiple Piezoelectric Platesmentioning

confidence: 98%

“…Our previous studies indicate that at the first mode with the lowest eigenfrequency, the most acoustic energy is accumulated inside the tube [4][5]. Therefore, the first eigenmode has been chosen as the harvesting mode in our low frequency acoustic harvester.…”

Section: Theoretical Analysis Of Eigenfrequency Shift In Open-closed mentioning

confidence: 99%

“…In our previous studies [4][5], multiple piezoelectric cantilever plates were placed inside a straight-tube resonator (i.e., open-closed duct at resonance) to harvest acoustic energy at a low frequency (100~200 Hz), as shown in figure 4 (a). When the tube is excited by an incident sound wave at its eigenfrequency, a resonant standing wave is developed inside the tube.…”

Section: Acoustic Energy Harvestermentioning

confidence: 99%

“…Recently, we have introduced an acoustic energy harvester which uses multiple PZT and PVDF piezoelectric cantilevers placed inside a quarter-wavelength resonator to scavenge low frequency acoustic energy [4][5]. The eigenfrequencies of quarter-wavelength resonators gradually decrease when the piezoelectric cantilevers are installed inside the resonators.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhanced output power by eigenfrequency shift in acoustic energy harvester

You

2014

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

In our previous studies, multiple piezoelectric cantilever plates were placed inside a quarter-wavelength straight tube resonator to harvest low frequency acoustic energy. To investigate the modification of eigenmodes in the tube resonator due to the presence of piezoelectric plates, the eigenfrequency shift properties by introducing single and multiple rectangular blockages in open-closed ducts are studied by using 1D segmented Helmholtz equations, Webster horn equation, and finite element simulations. The first-mode eigenfrequency of the duct is reduced when the blockage is placed near the open inlet. The decrease of eigenfrequency leads to the enhancement of absorbed acoustic power in the duct. Furthermore, the first half of the tube resonator possesses high pressure gradient resulting in larger driving forces for the vibration motion of piezoelectric plates. Therefore, in our harvesters, it is better to place the piezoelectric plates in the first half of the tube resonator to obtain high output voltage and power.

show abstract

Section: Eigenfrequency Shift When Placing Multiple Piezoelectric Platesmentioning

confidence: 98%

Section: Theoretical Analysis Of Eigenfrequency Shift In Open-closed mentioning

confidence: 99%

Section: Acoustic Energy Harvestermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced output power by eigenfrequency shift in acoustic energy harvester

You

2014

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

show abstract

“…Yet, little effort has been given to exploit the energy of traveling waves in fluids and structures. Only a few research groups have studied this area with a focus on polarization-patterned piezoelectric solids [17], quarter-wavelength resonators [18], Helmholtz resonators [19][20] and phononic crystals [21][22][23][24]. In addition, Yang et al [25] combined the sonic crystal concept with the Helmholtz resonators to enhance the acoustic energy harvesting.…”

Section: Introductionmentioning

confidence: 97%

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

2014

View full text Add to dashboard Cite

Vibration-based energy harvesting has been heavily researched over the last decade to enable self-powered small electronic components for wireless applications in various disciplines ranging from biomedical to civil engineering. The existing research efforts in this interdisciplinary field have mostly focused on the harvesting of deterministic or stochastic vibrational energy available at a fixed position in space. Such an approach is convenient to design and employ linear and nonlinear vibration-based energy harvesters, such as base-excited cantilevers with piezoelectric laminates. However, persistent vibrations at a fixed frequency and spatial point, or standing wave patterns, are rather simplified representations of ambient vibrational energy. As an alternative to energy harvesting from spatially localized vibrations and standing wave patterns, this work presents an investigation into the harvesting of one-dimensional bending waves in infinite beams. The focus is placed on the use of piezoelectric patches bonded to a thin and long beam and employed to transform the incoming wave energy into usable electricity while minimizing the traveling waves reflected and transmitted from the harvester domain. To this end, performance enhancement by wavelength matching, resistiveinductive circuits, and a localized obstacle are explored. Electroelastic model predictions and performance enhancement efforts are validated experimentally for various case studies.

show abstract

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Oudich

Gerard

Deng

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields of photonic and phononic crystals where BGs are frequency (or wavelength) intervals where wave propagation is prohibited. For elastic waves, BGs are found in periodically alternating mechanical properties (i.e., stiffness and density). This gives birth to phononic crystals and later elastic metamaterials that have enabled unprecedented functionalities for a wide range of applications. Planar metamaterials are built for vibration shielding, while a myriad of works focus on integrating phononic crystals in microsystems for filtering, waveguiding, and dynamical strain energy confinement in optomechanical systems. Furthermore, the past decade has witnessed the rise of topological insulators, which leads to the creation of elastodynamic analogs of topological insulators for robust manipulation of mechanical waves. Meanwhile, additive manufacturing has enabled the realization of 3D architected elastic metamaterials, which extends their functionalities. This review aims to comprehensively delineate the rich physical background and the state-of-the art in elastic metamaterials and phononic crystals that possess engineered BGs for different functionalities and applications, and to provide a roadmap for future directions of these manmade materials.

show abstract

Harvesting low-frequency acoustic energy using quarter-wavelength straight-tube acoustic resonator

Cited by 116 publications

References 35 publications

Enhanced output power by eigenfrequency shift in acoustic energy harvester

Enhanced output power by eigenfrequency shift in acoustic energy harvester

Modeling and enhancement of piezoelectric power extraction from one-dimensional bending waves

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Contact Info

Product

Resources

About