Existing design criteria for vibration energy harvesting systems provide guidance on the appropriate selection of the seismic mass and load resistance. To harvest maximum power in resonant devices, the mass needs to be as large as possible and the load resistance needs to be equal to the sum of the internal resistance of the generator and the mechanical damping equivalent resistance. However, it is shown in this paper that these rules produce suboptimum results for applications where there is a constraint on the relative displacement of the seismic mass, which is often the case. When the displacement is constrained, increasing the mass beyond a certain limit reduces the amount of harvested power. The optimum load resistance in this case is shown to be equal to the generator's internal resistance. These criteria are extended to those devices that harvest energy from a low-frequency vibration by utilizing an interface that transforms the input motion to higher frequencies. For such cases, the optimum load resistance and the corresponding transmission ratio are derived.
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Engineering Science,
University of Southampton Highfield,
e-mail: M.Hendijanizadeh@soton.ac.uk
Engineering Science,
University of Southampton Highfield,
e-mail: M.M.Torbati@soton.ac.uk
Engineering Science,
University of Southampton Highfield,
e-mail: S.M.Abu-Sharkh@soton.ac.uk
Article navigation
April 2014
Research-Article
Constrained Design Optimization of Vibration Energy Harvesting Devices
Mehdi Hendijanizadeh,
Engineering Science,
University of Southampton Highfield,
e-mail: M.Hendijanizadeh@soton.ac.uk
Mehdi Hendijanizadeh
1
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: M.Hendijanizadeh@soton.ac.uk
1Corresponding author.
Search for other works by this author on:
Mohamed Moshrefi-Torbati,
Engineering Science,
University of Southampton Highfield,
e-mail: M.M.Torbati@soton.ac.uk
Mohamed Moshrefi-Torbati
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: M.M.Torbati@soton.ac.uk
Search for other works by this author on:
Suleiman M. Sharkh
Engineering Science,
University of Southampton Highfield,
e-mail: S.M.Abu-Sharkh@soton.ac.uk
Suleiman M. Sharkh
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: S.M.Abu-Sharkh@soton.ac.uk
Search for other works by this author on:
Mehdi Hendijanizadeh
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: M.Hendijanizadeh@soton.ac.uk
Mohamed Moshrefi-Torbati
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: M.M.Torbati@soton.ac.uk
Suleiman M. Sharkh
Electro-Mechanical Engineering Research Group
,Engineering Science,
University of Southampton Highfield,
Southampton SO17 1BJ
, UK
e-mail: S.M.Abu-Sharkh@soton.ac.uk
1Corresponding author.
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 12, 2012; final manuscript received September 28, 2013; published online November 20, 2013. Assoc. Editor: Brian P. Mann.
J. Vib. Acoust. Apr 2014, 136(2): 021001 (6 pages)
Published Online: November 20, 2013
Article history
Received:
June 12, 2012
Revision Received:
September 28, 2013
Citation
Hendijanizadeh, M., Moshrefi-Torbati, M., and Sharkh, S. M. (November 20, 2013). "Constrained Design Optimization of Vibration Energy Harvesting Devices." ASME. J. Vib. Acoust. April 2014; 136(2): 021001. https://doi.org/10.1115/1.4025877
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