Coupling analysis of linear vibration energy harvesting systems

Wang, Xu; Liang, Xingyu; Shu, Gequn; Watkins, Simon

doi:10.1016/j.ymssp.2015.09.006

Cited by 31 publications

(4 citation statements)

References 29 publications

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“…The time domain and frequency analysis approaches have been applied to solve the system equations [121,140,141]. The performance of electromagnetic vibration energy harvesters have been analyzed and optimized in dimensionless forms and compared with that of the piezoelectric vibration energy harvesters for different interface circuits [140,[142][143][144]. Coupling loss factor of linear vibration energy harvesting systems in a framework of statistical energy analysis has been defined [140,144,145], the frequency ranges to enable statistical energy analysis of the electromagnetic vibration energy harvesters have been identified [140,145].…”

Section: Our Contributionsmentioning

confidence: 99%

“…The relationship of vibration energy harvester performance with dimensionless force factor has been disclosed. Numerical ranges of the dimensionless force factor have been defined for cases of weak, moderate and strong coupling [140,144]. The 2DOF vehicle quarter suspensions with piezoelectric and electromagnetic vibration energy harvesters have been studied where a dimensionless analysis method was proposed to predict the output voltage and harvested power for a 2DOF vibration energy harvesting system.…”

Section: Our Contributionsmentioning

confidence: 99%

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A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

2018

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In this paper, the current technologies of the regenerative shock absorber systems have been categorized and evaluated. Three drive modes of the regenerative shock absorber systems, namely the direct drive mode, the indirect drive mode and hybrid drive mode are reviewed for their readiness to be implemented. The damping performances of the three different modes are listed and compared. Electrical circuit and control algorithms have also been evaluated to maximize the power output and to deliver the premium ride comfort and handling performance. Different types of parameterized road excitations have been applied to vehicle suspension systems to investigate the performance of the regenerative shock absorbers. The potential of incorporating nonlinearity into the regenerative shock absorber design analysis is discussed. The research gaps for the comparison of the different drive modes and the nonlinearity analysis of the regenerative shock absorbers are identified and, the corresponding research questions have been proposed for future work.

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Section: Our Contributionsmentioning

confidence: 99%

Section: Our Contributionsmentioning

confidence: 99%

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

2018

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“…Energy harvesting from vibration using piezoelectric materials is a viable and effective way of recharging batteries and powering electronic devices. Piezoelectric material is one of the ideal solutions for harvesting power from environmental vibration sources due to its simplicity in structure, compatibility to microelectro mechanical systems (MEMS) technology, and high conversion efficiency [1][2][3][4]. The efficiency of piezoelectric material is dependent on the piezoelectric coefficients d 31 and d 33 , where the second subscript depicts the direction of the strain with respect to the direction of polarization.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear energy harvesting via an axially moving piezoelectric beam with both d ₃₁ and d ₃₃ modes

Lu¹,

Chen²,

Fu³

et al. 2023

J. Phys. D: Appl. Phys.

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Piezoelectric energy harvesters (PEH) in the literature typically operate with a single conversion mechanism (either d31 or d33); the output power, therefore, is limited, and not sufficient to sustainably energize low-power electronics. In this study, a nonlinear PEH with couped d31 and d33 modes is designed and evaluated. An axially moving piezoelectric beam (AMPB) was applied to investigate the contribution of d31 and d33 to the output, and the critical parameters of the configuration were determined. A distributed parametric electromechanical model was established to characterize the non-linear dynamics of AMPB with d31 and d33 modes. The Galerkin approach and the harmonic-balance approach were employed conjointly to investigate the forced response of the energy harvesting system. The axial velocity’s effects upon energy harvesting were as well discussed. Comparison of the frequency response functions (FRFs) for voltage and power output between energy structures of d31 and d33 modes revealed several discrepancies. For instance, the voltage and power output of the d33 mode were greater than those of d31 mode for low frequencies, and the difference between the two modes decreased as the frequency increased. For the composite mode d31 and d33, under the same parameter conditions, the voltage and power output were greater than the output of any single mode. The analytical results were supported by a numerical method through the finite difference method. Both analytical and numerical results indicated the FRF could be increased by increasing the excitation amplitude, reducing the damping coefficient, or increasing the electrode spacing.The present study showed the efficiency of the use of the FRF using nonlinear transverse vibration of AMPB for d31 and d33 modes.

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“…Research reported in the literature pertaining to this relationship primarily focuses on the linear and qualitative analysis of strength and sources of coupling. 1,2 Attributed to the multifactor effects of the complex electromechanical systems, non-linear response further increases difficulty in analysis. Process systems, in particular, chemical processes often exhibit severe nonlinearities.…”

Section: Introductionmentioning

confidence: 99%

Analysis of multifractality of multivariable coupling relationship of complex electromechanical system in process industry

Wang

Gao

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part E:

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Analysis of the multivariable coupling relationship, detection of the features of the coupling, and quantification of different degrees of each variable for the coupling are important foundations for information modeling, key point identification, and fault tracing of complex electromechanical systems. It is significant to understand the reasons associated with system conditions exchange, and improve the abilities of accident prevention and safety control of the system. In order to study the multifractal properties of the multivariable coupling relationship of the production system in the process industry, coupling detrended fluctuation analysis (CDFA) was applied. The strength and sources of the multifractality were estimated by shuffling and phase randomization with confidence bands. Different degrees of each variable were qualitatively and quantitatively quantified by the Chi square test. Empirical results showed that the CDFA was suitable for analyzing the multivariable coupling relationship of complex electromechanical system, and the coupling exhibited an obvious multifractal feature. Long-range correlation and fat-tailed probability density function of variables are sources for the multifractality of the multivariable coupling relationship of production system in process industry. Some invariant values, such as the multifractality power and ranks of different degree of single variable for the coupling, were detected for a specific operation condition, which were meaningful for conditions identification and information quality control of complex electromechanical system in process industry.

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Coupling analysis of linear vibration energy harvesting systems

Cited by 31 publications

References 29 publications

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

Nonlinear energy harvesting via an axially moving piezoelectric beam with both d ₃₁ and d ₃₃ modes

Analysis of multifractality of multivariable coupling relationship of complex electromechanical system in process industry

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Coupling analysis of linear vibration energy harvesting systems

Cited by 31 publications

References 29 publications

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

A Comprehensive Review of the Techniques on Regenerative Shock Absorber Systems

Nonlinear energy harvesting via an axially moving piezoelectric beam with both d 31 and d 33 modes

Analysis of multifractality of multivariable coupling relationship of complex electromechanical system in process industry

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Nonlinear energy harvesting via an axially moving piezoelectric beam with both d ₃₁ and d ₃₃ modes