摘要
针对压电材料作为减振器来减少振动的实用性问题,对智能材料作为传感元件及驱动元件技术应用到压电自感减振器进行了研究,建立了压电自感减振器的模型,对自感反馈的效果以及对智能结构振动的控制进行了评价,提出了改变压电自感减振器模型的电容值来改变固有频率,以及改变模型的阻尼比来为自感提供反馈,并通过实验分析了压电自感减振器对振动的控制。研究结果表明,该系统能很好地实现自感反馈的效果,以及对智能结构振动的控制。
Aiming at the practicality of piezoelectric materials as actuators to reduce the vibration, the smart materials as the sensing element and a driving element for vibration control was investigated, the model of piezoelectric self-sensing vibration was set up. After the analysis of piezoelectric self-sensing vibration, the feedback results were evaluated on the smart structural vibration control, the natural frequency of the system could be changed by changing the capacitance value and the damping ratio changed to provide feedback for the self-sensing, the model of piezoelectric self-sensing vibration was presented to do the experiment and simulation. The results indicate that the system can achieve a good self-sensing of the feedback effects and vibration control of smart structures.
出处
《机电工程》
CAS
2015年第5期596-601,共6页
Journal of Mechanical & Electrical Engineering
关键词
压电作动器
压电自感减振器
实验和仿真
特性研究
piezoelectric actuator
self-sensing piezoelectric vibration
experiment and simulation
characteristics research
