L
Lien Wen Chen
Researcher at National Cheng Kung University
Publications - 66
Citations - 1753
Lien Wen Chen is an academic researcher from National Cheng Kung University. The author has contributed to research in topics: Photonic crystal & Plane wave expansion method. The author has an hindex of 23, co-authored 66 publications receiving 1558 citations.
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Acoustic energy harvesting using resonant cavity of a sonic crystal
TL;DR: In this paper, a point defect is created by removing a rod from a perfect sonic crystal and the point defect acts as a resonant cavity, and the acoustic waves at the resonant frequency of the cavity can be localized in the cavity.
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Vibration damage detection of a Timoshenko beam by spatial wavelet based approach
Chih-Chieh Chang,Lien Wen Chen +1 more
TL;DR: In this article, the authors used the wavelet transform to analyze the mode shape of a Timoshenko beam and demonstrated that the crack position can be detected by this method even though the crack is very small.
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Damage detection of a rectangular plate by spatial wavelet based approach
Chih-Chieh Chang,Lien Wen Chen +1 more
TL;DR: In this paper, a technique for structure damage detection based on spatial wavelet analysis is presented. But this method only needs the spatially distributed signals (e.g. the displacements or mode shapes) of the rectangular plate after damage.
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Acoustic energy harvesting by piezoelectric curved beams in the cavity of a sonic crystal
TL;DR: In this paper, a model for energy harvesting of the piezoelectric curved beam is also developed to predict the output voltage and power of the energy harvesting, and the experimental results are compared with the theoretical.
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The tunable acoustic band gaps of two-dimensional phononic crystals with a dielectric elastomer cylindrical actuator
Wen Pei Yang,Lien Wen Chen +1 more
TL;DR: In this paper, a dielectric elastomer cylindrical actuator was used to measure the radial strain of the silicone-made actuator and the frequency range of the actuator can be extended by increasing the applied voltage.