简易压电晶片式液压发电装置的设计及试验  

A simple hydraulic generator based on piezoceramics

作　　者：阮斌[1] 陶振强 贾南南[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《光学仪器》2014年第4期352-355,共4页Optical Instruments

摘　　要：为实现低频率,高强度的振动能量回收和利用,提出一种基于压电流体耦合作用的压电晶片式液压发电装置。通过理论分析设计结构,采用直径60mm,厚度1.6mm的压电晶片以及直径16mm,高度50mm的液压缸制作样机,用水作为工作介质,测试了装置在不同激励频率、激励电压、系统背压及加载质量等条件下的电压输出情况。试验结果表明:当激励频率(工作频率)在27Hz左右时,该压电晶片式液压发电装置的输出电压达到最大,且在一定的范围内,发电装置输出电压随着激励电压、系统背压及加载质量的增加而增加,验证了液压-压电发电的可行性。To achieve a high intensity vibration and a low frequency energy reliably, a generator was presented based on solid fluid coupling vibration. By means of a theoretical analysis and a design of the structure, a prototype with a 460 mm× 1.6 mm piezodisc and a 416 mm× 50 mm cylinder were fabricated. The output voltage was tested with water as liquid medium at different frequencies, back pressures, masses and excitation voltages. The test results suggested that there was an optimal vibration frequency （27 Hz） for the generator to achieve the maximal output voltage, which increased with the increasing of the back pressure, mass and excitation voltage within a certain range. The results demonstrated the feasibility of the principle of the generator.

关 键 词：振动 压电陶瓷 液压压电 发电装置 

分 类 号：TM619[电气工程—电力系统及自动化]