通过电流反馈运放模拟电感实现压电分流阻尼系统

发布时间：2018-05-15 10:05

本文选题：电流反馈 + 模拟电感　；参考：《组合机床与自动化加工技术》2017年09期

【摘要】：传统的压电分流阻尼系统控制振动一般采用电压反馈运算放大器来实现。为了提高压电分流阻尼系统的控制效果,提出新的基于电流反馈运算放大器的压电分流阻尼系统设计方法。以根部对位粘贴压电陶瓷片的两端固支梁结构为例,根据电流模理论设计了相应的分流电路。针对该结构的第三阶固有频率进行实验研究和分析,通过改变分流电路中的等效电感和等效电阻大小使其获得最佳控制效果,并与传统的基于电压运算放大器的压电分流阻尼系统进行对比。实验结果表明:采用新设计的控制系统抑制振动的效果比传统的控制系统抑制振动的效果提高了约8%。
[Abstract]:The traditional piezoelectric shunt damping system usually uses voltage feedback operational amplifier to control vibration. In order to improve the control effect of piezoelectric shunt damping system, a new design method of piezoelectric shunt damping system based on current feedback operational amplifier is proposed. Based on the current mode theory, a shunt circuit is designed based on the two ends clamped beam structure of the piezoelectric ceramic plate with the root opposite position as an example. The third order natural frequency of the structure is experimentally studied and analyzed. The optimal control effect is obtained by changing the equivalent inductance and equivalent resistance in the shunt circuit. And compared with the traditional piezoelectric shunt damping system based on voltage operational amplifier. The experimental results show that the vibration suppression effect of the newly designed control system is about 8% higher than that of the traditional control system.
【作者单位】：南昌航空大学飞行器工程学院;
【基金】：国家自然基金项目(11464031,51265037) 航空科学基金项目(2015ZA56002) 江西省高校科技落地计划资助项目(KJLD12075) 江西省研究生创新专项资金项目(YC2016-S336)
【分类号】：TB535;TG502.36

【相似文献】