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张智娟,杨瑞,郑龙飞,等. 悬臂梁双晶压电能量采集装置的实验探究[J]. 科学技术与工程, 2020, 20(35): 14518-14522.
Zhang Zhijuan,Yang Rui,Zheng Longfei,et al.Experimental Exploration of the Double Crystal Piezoelectric Energy Collection Device of the Cantilever Beam[J].Science Technology and Engineering,2020,20(35):14518-14522.
悬臂梁双晶压电能量采集装置的实验探究
Experimental Exploration of the Double Crystal Piezoelectric Energy Collection Device of the Cantilever Beam
投稿时间:2019-12-06  修订日期:2020-08-28
DOI:
中文关键词:  压电 能量采集 悬臂梁 自供电
英文关键词:piezoelectric energy harvesting cantilever beam self-powered
基金项目:河北省自然科学基金
           
作者单位
张智娟 华北电力大学电气与电子工程学院
杨瑞 华北电力大学电气与电子工程学院
郑龙飞 华北电力大学电气与电子工程学院
侯立群 华北电力大学控制与计算机工程学院
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中文摘要:
      为提高双晶压电振子的发电能力,探究了一种悬臂梁式双晶压电能量采集装置的发电性能。实验研究了振动台频率、激励位移、负载阻值和悬臂梁自由端质量块对悬臂梁式双晶压电能量采集装置输出电压和负载功率的影响,将两片双晶压电振子并联,探究了它们的发电性能。实验表明,存在谐振频率,使得输出电压最大;输出电压随着激励位移和负载阻值的增大而增大,并与激励位移呈一次函数关系;双晶压电振子外接匹配负载时,负载功率最大;随着质量块的质量在一定程度上的增加,输出电压随频率变化的曲线左移,峰值电压对应的频率变小;两片双晶压电振子并联且带匹配负载时,能有效提高负载功率。
英文摘要:
      In order to improve the power generation capacity of the double crystal piezoelectric plate, the power generation performance of a double crystal piezoelectric energy collection device of the cantilever beam-type was explored. The effects of frequency generated from the vibrator, displacement generated by incentives, resistance value of the external connection and mass block at free end of cantilever beam on the output voltage and output power of it were studied; by paralleling the two double crystal piezoelectric plates, their power generation performance was explored. Experiments show that the resonance frequency exists, which maximizes the output voltage; the output voltage increases with the increase of resistance value and displacement generated by incentives, and is linear relationship with the displacement; the output power is the largest when it connects the matching load; and as the weight of mass block at free end of cantilever beam increases to a certain extent, the curve of the output voltage and frequency relationship moves to the left, and the frequency corresponding to the peak voltage decreases; when two pieces of double crystal piezoelectric plates are paralleled and the external connects the matching load, the load power can be effectively increased.
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