A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

Huang, Wenbin; Chen, Zhiwen; Lin, Wanrong; Wang, Sijia; Xie, Zhengqiu

doi:10.1088/1361-665x/aca7a4

Cited by 7 publications

(6 citation statements)

References 45 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The superposition of equations ( 8)-( 11) enables the complete magnetic induction intensity at S (x, y, z) within the magnetic field generated by the two annular magnets to be represented as: (12) According to the magnetizing current method, the magnetizing currents of the two annular magnets generate a magnetic field that induces an ampere force on the magnetizing currents of the rectangular magnet, which can be expressed as [40,41]:…”

Section: The Ph and Its Mathematical Modelmentioning

confidence: 99%

“…Energy harvesters are designed to address these limitations by collecting renewable energy sources such as thermal energy, rain energy, wind energy, solar energy, and vibration energy from the environment and converting them into electrical energy to power sensors or electronic devices, which not only fulfill the power supply needs of microelectronic devices in certain specialized environments but also offer environmental sustainability and pollutionfree energy generation [8][9][10]. Among various renewable energy sources, vibration energy is widely prevalent in industrial and daily life activities, including machinery operation, transportation, and human movement [11,12]. Therefore, researchers have shown substantial interest in vibration energy harvesters [13,14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and performance of a novel magnetically induced penta-stable piezoelectric energy harvester

Sun,

Su,

Chen

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

The magnetically induced multi-stable piezoelectric vibration energy harvesters have garnered significant attention due to their strong nonlinear characteristics, wide operating bandwidths, and high electromechanical energy conversion efficiency. However, a traditional penta-stable design typically requires four rectangular external magnets. The excessive number of structural parameters amplify complexities in system optimization, dynamic analysis, and prototype installation, impeding harvester manufacturing and application. This study presents a novel penta-stable harvester design that utilizes interaction forces among a rectangular magnet and two annular magnets, resulting in a simplified system requiring only two external magnets. This design approach streamlines system design, dynamic analysis, and prototype installation, providing a fresh perspective on magnetic penta-stable vibration energy harvester design. The magnetizing current method is employed to accurately determine the system's magnetic field and magnetic force. Stability analysis indicates that the multi-stability of the harvester is influenced by both the vertical magnetic force and equivalent linear elastic force, which can be effectively controlled by adjusting the system's components. Dynamic simulations conducted under Gaussian white noise excitation confirm the penta-stable behavior of the system, and the dynamic responses verify that a shallower potential well depth contributes to the system's ability to attain a higher output voltage. Experimental validations closely align with simulation results, providing strong evidence for the accuracy of the study's findings. Furthermore, a practical application experiment demonstrates the harvester's capability to power a hygrothermograph, highlighting its potential for real-world energy harvesting applications.

show abstract

Section: The Ph and Its Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and performance of a novel magnetically induced penta-stable piezoelectric energy harvester

Sun,

Su,

Chen

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Among these sources, mechanical vibration is widely distributed in human motions, transport systems, electronic devices and so on [21]. Hence, mechanical energy harvesters have drawn great interests recently [22][23][24][25]. The piezoelectric energy harvester, which is based on the direct piezoelectric effect of piezoelectric materials, is one of the common mechanical energy harvesters, and it is widely investigated by lots of researchers owing to its high energy conversion efficiency [26,27].…”

Section: Introductionmentioning

confidence: 99%

Force and stability mechanism analysis of two types of nonlinear mono-stable and multi-stable piezoelectric energy harvesters using cantilever structure and magnetic interaction

Sun¹,

Leng²,

Hur³

et al. 2023

Smart Mater. Struct.

View full text Add to dashboard Cite

Nonlinear mono-stable and multi-stable piezoelectric energy harvesters have attracted a lot of attention owing to their broadband frequency spectra and excellent energy harvesting performance. Herein, two types of nonlinear mono-stable, bi-stable, tri-stable, and quad-stable piezoelectric energy harvesters using cantilever structure and magnetic interaction are compared and analyzed. Based on the magnetizing current method, the magnetic force equations are obtained. Calculation results demonstrate that the stability of these harvesters is dependent on the equivalent linear elastic force and the vertical magnetic force. The equilibrium point occurs when the equivalent linear elastic force equals to the vertical magnetic force. The relationship between the number of stable equilibrium points ES and the number of the intersections of the two force curves NI is that ES = (NI+1)/2. Experiments are carried out to verify the equivalent linear elastic force, vertical magnetic force, and the number of stable equilibrium points of the fabricated prototypes. The experimental results are consistent with the calculated results, which verifies the correctness of the stability mechanism. Moreover, it is found that the stability mechanism is also applicable to the harvesters with more stable equilibrium points, such as penta-stable and hexa-stable harvesters. This work reveals the stability mechanism of nonlinear mono-stable and multi-stable energy harvesters using cantilever structure and magnetic interaction, and provides technical methods for the design of multi-stable energy harvesters.

show abstract

“…Fan et al (2022b) presented an internal resonance piezoelectric energy harvester with three-dimensional coupled bending and torsional modes and shown that the fine-tuned system leverages a two-to-one internal resonance between its first torsion and second bending modes to enhance the power output. Huang et al (2023) designed a TDOF U-shaped single magnet bistable energy harvester based on the internal resonance technique and demonstrated the proposed system can produce a significant output in two frequency ranges. Xu and Zhao (2022) introduced a novel TDOF galloping energy harvester with 2:1 internal resonance for efficient dual-source energy harvesting, and obtained that at the wind speed of 3 m / s and base acceleration of 0 . 9 m / s 2 , the proposed scheme achieves a 211 . 1 % increase in the effective bandwidth and a 50 % increase in the peak voltage around the first resonance.…”

Section: Introductionmentioning

confidence: 99%

Broadband energy harvesting in a two-degree-of-freedom nonlinear system without internal resonance

Zhang,

Yang,

Jiang

et al. 2023

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

In this paper, we propose a novel two-degree-of-freedom (TDOF) nonlinear energy harvester without internal resonance to realize broadband harvesting characteristic. To show the performance, a TDOF nonlinear electromagnetic harvester is designed. The electromechanical coupling system is established and solved by adopting the harmonic balance method. The modulation equations are constructed, the first-order harmonic solutions of the system are obtained and the frequency response curves of the displacement and current are plotted. The advantage of the proposed harvester is compared to the conventional single-degree-of-freedom (SDOF) nonlinear model and the corresponding TDOF linear system, the results achieve that the proposed scheme can enhance the bandwidth of the harvesting energy. Furthermore, the influences of system parameters on the response are discussed. The accuracy of the first-order harmonic results is revealed by numerical simulations. To further demonstrate the accuracy of analytical solutions, the finite element simulation is constructed in ANSYS finite element analysis (FEA) software. The performance predictions from the analytical solutions are compared with results from FEA. It is convincingly demonstrated that periodic solutions have a degree of good consistency for the behavior of frequency response curves.

show abstract

A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

Cited by 7 publications

References 45 publications

Design and performance of a novel magnetically induced penta-stable piezoelectric energy harvester

Design and performance of a novel magnetically induced penta-stable piezoelectric energy harvester

Force and stability mechanism analysis of two types of nonlinear mono-stable and multi-stable piezoelectric energy harvesters using cantilever structure and magnetic interaction

Broadband energy harvesting in a two-degree-of-freedom nonlinear system without internal resonance

Contact Info

Product

Resources

About