Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation
We develop performance criteria for the objective comparison of different classes of single-degree-of-freedom oscillators under stochastic excitation. For each family of oscillators, these objective criteria take into account the maximum possible energy harvested for a given response level, which is...
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| Format: | Article |
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ASME International
2019
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| Online Access: | http://hdl.handle.net/1721.1/120077 https://orcid.org/0000-0003-0302-0691 |
| _version_ | 1826195405782646784 |
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| author | Joo, Han Kyul Sapsis, Themistoklis P. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Joo, Han Kyul Sapsis, Themistoklis P. |
| author_sort | Joo, Han Kyul |
| collection | MIT |
| description | We develop performance criteria for the objective comparison of different classes of single-degree-of-freedom oscillators under stochastic excitation. For each family of oscillators, these objective criteria take into account the maximum possible energy harvested for a given response level, which is a quantity that is directly connected to the size of the harvesting configuration. We prove that the derived criteria are invariant with respect to magnitude or temporal rescaling of the input spectrum and they depend only on the relative distribution of energy across different harmonics of the excitation. We then compare three different classes of linear and nonlinear oscillators and using stochastic analysis tools we illustrate that in all cases of excitation spectra (monochromatic, broadband, white-noise) the optimal performance of all designs cannot exceed the performance of the linear design. |
| first_indexed | 2024-09-23T10:12:08Z |
| format | Article |
| id | mit-1721.1/120077 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T10:12:08Z |
| publishDate | 2019 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/1200772022-09-26T16:25:02Z Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation Joo, Han Kyul Sapsis, Themistoklis P. Massachusetts Institute of Technology. Department of Mechanical Engineering Joo, Han Kyul Sapsis, Themistoklis P. We develop performance criteria for the objective comparison of different classes of single-degree-of-freedom oscillators under stochastic excitation. For each family of oscillators, these objective criteria take into account the maximum possible energy harvested for a given response level, which is a quantity that is directly connected to the size of the harvesting configuration. We prove that the derived criteria are invariant with respect to magnitude or temporal rescaling of the input spectrum and they depend only on the relative distribution of energy across different harmonics of the excitation. We then compare three different classes of linear and nonlinear oscillators and using stochastic analysis tools we illustrate that in all cases of excitation spectra (monochromatic, broadband, white-noise) the optimal performance of all designs cannot exceed the performance of the linear design. Kwanjeong Educational Foundation (Korea) Massachusetts Institute of Technology (Startup Grant) 2019-01-15T19:47:06Z 2019-01-15T19:47:06Z 2014-08 2018-12-18T13:44:16Z Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-4639-1 http://hdl.handle.net/1721.1/120077 Joo, Han Kyul, and Themistoklis P. Sapsis. “Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation.” Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, 17-20 August, 2010, Buffalo, New York, USA, ASME, 2010. © 2014 by ASME https://orcid.org/0000-0003-0302-0691 http://dx.doi.org/10.1115/DETC2014-34134 Proceedings of the ASME 2014 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International ASME |
| spellingShingle | Joo, Han Kyul Sapsis, Themistoklis P. Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title | Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title_full | Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title_fullStr | Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title_full_unstemmed | Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title_short | Performance Barriers for Single-Degree-of-Freedom Energy Harvesters Under Generic Stochastic Excitation |
| title_sort | performance barriers for single degree of freedom energy harvesters under generic stochastic excitation |
| url | http://hdl.handle.net/1721.1/120077 https://orcid.org/0000-0003-0302-0691 |
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