青岛大学学报（自然科学版）2024，Vol.37Issue(2)：73-78,6.DOI:10.3969/j.issn.1006-1037.2024.02.13
一种磁耦合型M形屈曲梁压电俘能器研究
Research on Magnetically Coupled M-shaped Buckled Beam Piezoelectric Energy Harvester
摘要
Abstract
In order to improve the energy harvesting efficiency of piezoelectric energy harvester in low fre-quency and weak vibration environment,a magnetic coupling M-shaped buckled beam piezoelectric energy harvester(MEH)was proposed,which was derived from the original MEH.The lumped parameter model of the system was established.The nonlinear restoring force of the M-shaped buckled beam was measured and fitted experimentally,and the influence of the nonlinear magnetic force on the system performance was investigated.The simulation and experimental results show that the magnetically coupled MEH has a wi-der operating frequency band,reaching 8.3 Hz(5.5 Hz-13.8 Hz)under 0.5 g acceleration excitation,which is 12.2%higher than the original MEH.The magnetically coupled MEH has a lower cross-well bar-rier and can achieve large amplitude periodic motion under 0.15 g acceleration excitation.关键词
压电俘能器/M形屈曲梁/非线性/双稳态Key words
piezoelectric energy harvester/M-shaped buckled beam/nonlinear/bistable分类
信息技术与安全科学引用本文复制引用
栾浩,田立斌,陈坤铭,丁晓亮,沈辉..一种磁耦合型M形屈曲梁压电俘能器研究[J].青岛大学学报（自然科学版）,2024,37(2):73-78,6.基金项目
国家自然科学基金面上项目(批准号:51975303)资助. （批准号:51975303）
