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Micromachines 2015, 6(10), 1577-1587; doi:10.3390/mi6101441

Analysis of Dynamic Properties of Piezoelectric Structure under Impact Load

1
School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
2
Liaocheng Planning & Architecture Design Institute Co. Ltd, Liaocheng 252000, China
*
Author to whom correspondence should be addressed.
Academic Editor: Maurizio Porfiri
Received: 10 April 2015 / Revised: 8 October 2015 / Accepted: 12 October 2015 / Published: 21 October 2015
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Abstract

An analytical model of the dynamic properties is established for a piezoelectric structure under impact load, without considering noise and perturbations in this paper. Based on the general theory of piezo-elasticity and impact mechanics, the theoretical solutions of the mechanical and electrical fields of the smart structure are obtained with the standing and traveling wave methods, respectively. The comparisons between the two methods have shown that the standing wave method is better for studying long-time response after an impact load. In addition, good agreements are found between the theoretical and the numerical results. To simulate the impact load, both triangle and step pulse loads are used and comparisons are given. Furthermore, the influence of several parameters is discussed so as to provide some advices for practical use. It can be seen that the proposed analytical model would benefit, to some extent, the design and application (especially the airport runway) of the related smart devices by taking into account their impact load performance. View Full-Text
Keywords: piezoelectric structure; impact response; theoretical solutions; standing wave method and travelling wave method piezoelectric structure; impact response; theoretical solutions; standing wave method and travelling wave method
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhang, T.; Ma, K. Analysis of Dynamic Properties of Piezoelectric Structure under Impact Load. Micromachines 2015, 6, 1577-1587.

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