Affiliation:
1. School of Mechanical Engineering Qilu University of Technology (Shandong Academy of Sciences) Shandong China
2. Shandong Institute of Mechanical Design and Research Shandong China
Abstract
AbstractIn this article, the piezoelectric patches are embedded into three‐dimensional (3‐D) braided composite material (BCM), and a 3‐D embedded braided composite piezoelectric vibration energy harvester (BCPEH) is designed. The 3‐D embedded BCPEH can be applied in more complex working environments to protecting the piezoelectric patches, and has a longer lifespan. The material parameters of the 3‐D BCM are obtained by analyzing the representative volume units (RVU). Using Hamilton's variational principle, the vibration control equation, and the output voltage and power expression are derived. The influence of excitation frequency, load resistance, and external excitation on the output voltage and power are simulated under different braided angles and embedded depths.
Funder
Natural Science Foundation of Shandong Province
Subject
Applied Mathematics,Computational Mechanics