摘要 通过学习压电能量的基础理论,分析建立压电能力收集装置的数学模型,了解现有的压电能量收集装置的频率方法,特别是实现响应的二自由度压电振子的设计方法。分析压电能量收集装置的基本特征,提出基于PZT的压电能量收集装置的建模方法,通过ANSYS有限元分析软件压电模块对等效电路进行模拟,并预测优化结构所能获取的最大能量。证实该分析和优化是合理的,并发现压电振子自由端粘贴质量块是提高发电量最有效的途径之一。 By studying the basic theory of piezoelectric energy, analyzing the mathematical model of the piezoelectric energy harvesting device, the frequency method of the existing piezoelectric energy harvesting device is understood, in particular, the design method of the two-degree-of-freedom piezoelectric vibrator for realizing the response is presented. Analyzes the basic characteristics of the piezoelectric energy harvesting device, proposes the modeling method of the piezoelectric energy harvesting device based on PZT, and simulates the equivalent circuit through the piezoelectric module of the finite element analysis software ANSYS, the maximum energy that can be obtained from the optimized structure is predicted. It is proved that the analysis and optimization of this paper is reasonable, and it is found that the free end of piezoelectric vibrator sticking mass is one of the most effective ways to improve the power generation.
机构地区 济源职业技术学院电气工程系
出处 《河南教育学院学报:自然科学版》 2021年第1期39-45,共7页 Journal of Henan Institute of Education:Natural Science Edition
基金 河南省教育厅重点教研教改项目(2017SJGLX160)。
关键词 PZT 压电能量 损伤检测 压电振子 金属结构 PZT piezoelectric energy damage detection piezoelectric vibrator metal construction
