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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Energy estimates for the two-dimensional acoustical rarefaction waves
二维声稀波 能量估计 无旋
2023/4/18
We study the two-dimensional acoustical rarefaction waves under the irrotational assumptions. We provide a new energy estimates without loss of derivatives. We also give a detailed geometric descripti...
Asynchronous phase shifted electromagnetic energy harvester
Energy harvester Electromagnetic transducer Asynchronous vibration Resonance
2015/6/30
A vibration-based energy harvester is built upon the idea of transforming mechanical vibration of an inertial frame into electrical power. When the excitation frequency matches the natural frequency o...
An aero-elastic flutter based electromagnetic energy harvester with wind speed augmenting funnel
aero-elastic flutter electromagnetic energy harvester wind speed augmenting funnel
2015/6/30
This paper investigates the efficiency of wind speed augmenting funnel incorporated with an aero-elastic-flutter based, energy harvester. Flutter phenomenon has been used to convert wind flow energy i...
Design of piezoelectric energy harvesting devices subjected to broadband random vibrations by applying topology optimization
Topology optimization Energy harvesting Piezoelectric material
2012/2/29
Converting ambient vibration energy into electrical energy by using piezoelectric energy harvester has attracted a lot of interest in the past few years. In this paper, a topology optimization based m...