Dynamics analysis of the portal frame model with non-ideal drive as an energy harvester

This paper presents an analytical and numerical analysis of vibration energy harvesting from the dynamic interaction and energy transfer between the two vibration modes of a 2-D-O-F model of a flexible portal frame. The frequencies of these modes are set in a two-to-one internal resonance condition. Excitation is provided by eccentric rotating mass-motor captured in external resonance. Next, we consider the same flexible portal frame excited from various directions with time-variable frequency. A piezoelectric device is used for energy harvesting. Depending on how the piezoelectric energy harvester is installed (or coupled) different gains are obtained. Good performance of the harvester generator is detected. We also observed periodic, quasi-periodic or chaotic oscillations, depending on the saturation phenomenon.

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Dynamics analysis of multi-field coupled piezoelectric energy harvester under random excitation

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/531/1/012038 ◽

2019 ◽

Vol 531 ◽

pp. 012038 ◽

Cited By ~ 1

Author(s):

Xuhui Zhang ◽

Meng Zuo ◽

Houzhi Tan ◽

Zhonghua Wu ◽

Zhengpeng Lai ◽

...

Keyword(s):

Energy Harvester ◽

Random Excitation ◽

Dynamics Analysis ◽

Piezoelectric Energy

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On non-ideal and non-linear portal frame dynamics analysis using bogoliubov averaging method

Journal of the Brazilian Society of Mechanical Sciences ◽

10.1590/s0100-73862002000400002 ◽

2002 ◽

Vol 24 (4) ◽

pp. 257-265 ◽

Cited By ~ 12

Author(s):

J. L. Palacios ◽

J. M. Balthazar ◽

R. M. L. R. F. Brasil

Keyword(s):

Averaging Method ◽

Dynamics Analysis ◽

Portal Frame ◽

Non Linear

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Simply supported FPEDs connected by springs for broadband energy harvesting

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209323 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 201-210

Author(s):

Yoshikazu Tanaka ◽

Satoru Odake ◽

Jun Miyake ◽

Hidemi Mutsuda ◽

Atanas A. Popov ◽

...

Keyword(s):

Energy Harvesting ◽

Evaluation Method ◽

Energy Harvester ◽

Vibrational Energy ◽

Functional Materials ◽

Vibration Energy ◽

Theoretical Evaluation ◽

Vibration Energy Harvester ◽

Polyvinylidene Difluoride ◽

Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

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