Rights statement: The final, definitive version of this article has been published in the Journal, Journal of Intelligent Materials Systems and Structures, 28 (18), 2017, © SAGE Publications Ltd, 2017 by SAGE Publications Ltd at the Journal of Intelligent Materials Systems and Structures page: http://journals.sagepub.com/jim on SAGE Journals Online: http://journals.sagepub.com/
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Metamodel-assisted design optimization of piezoelectric flex transducer for maximal bio-kinetic energy conversion
AU - Luo, Liheng
AU - Liu, Dianzi
AU - Zhu, Meiling
AU - Ye, Jianqiao
N1 - The final, definitive version of this article has been published in the Journal, Journal of Intelligent Materials Systems and Structures, 28 (18), 2017, © SAGE Publications Ltd, 2017 by SAGE Publications Ltd at the Journal of Intelligent Materials Systems and Structures page: http://journals.sagepub.com/jim on SAGE Journals Online: http://journals.sagepub.com/
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Energy-harvesting devices have been widely used to generate electrical power from the bio-kinetic energy of human body movement. A novel piezoelectric flex transducer based on the Cymbal device has been proposed by other researchers for the purpose of energy harvesting. To further improve the efficiency of the device, optimal design of the piezoelectric flex transducer for maximum output power subject to stress and displacement constraints is carried out inthis article. Sequential quadratic programming on metamodels generated with genetic programming from a 140-point optimal Latin hypercube design of experiments is used in the optimization. Finally, the optimal design is validated by finite element simulations. The simulations show that the magnitude of the electrical power generated from this optimal piezoelectric flex transducer harvesting device can be up to 6.5 MW when a safety design factor of 2.0 is applied.
AB - Energy-harvesting devices have been widely used to generate electrical power from the bio-kinetic energy of human body movement. A novel piezoelectric flex transducer based on the Cymbal device has been proposed by other researchers for the purpose of energy harvesting. To further improve the efficiency of the device, optimal design of the piezoelectric flex transducer for maximum output power subject to stress and displacement constraints is carried out inthis article. Sequential quadratic programming on metamodels generated with genetic programming from a 140-point optimal Latin hypercube design of experiments is used in the optimization. Finally, the optimal design is validated by finite element simulations. The simulations show that the magnitude of the electrical power generated from this optimal piezoelectric flex transducer harvesting device can be up to 6.5 MW when a safety design factor of 2.0 is applied.
KW - Energy harvesting
KW - piezoelectric
KW - parametric optimization
KW - design of experiments
KW - metamodel
U2 - 10.1177/1045389X17689943
DO - 10.1177/1045389X17689943
M3 - Journal article
VL - 28
SP - 2528
EP - 2538
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
SN - 1530-8138
IS - 18
ER -