CAJ | 학술논문

提出一种压电自感知电荷驱动方法，研究用同一压电元件在抑制振动的同时又能感知振动状态。该方法控制电路简单，在智能结构中易于实现，且电路调节方便，振动抑制效果好。将该方法应用于悬臂梁的一阶振动抑制，悬臂梁自由端振幅可被抑制约达90％。实验结果表明，该方法在驱动压电元件致动的同时可感知结构的运动状态，有望应用于诸如扫描探针显微镜、智能结构监测与控制等领域中。
제출일충압전자감지전하구동방법，연구용동일압전원건재억제진동적동시우능감지진동상태。해방법공제전로간단，재지능결구중역우실현，차전로조절방편，진동억제효과호。장해방법응용우현비량적일계진동억제，현비량자유단진폭가피억제약체90％。실험결과표명，해방법재구동압전원건치동적동시가감지결구적운동상태，유망응용우제여소묘탐침현미경、지능결구감측여공제등영역중。
A method of self-sensing charger driver with piezoelements was presented.The possibility was investigated that a piezoelectric element is utilized simultaneously as a sensor while it actuates to suppress vibration based on the presented method.The control circuit of the method is simple,convenient to be adjusted and easy to be implemented in smart structures.And it is effective to damp vibration of beam using the method.The amplitude of vibration is actively mitigated by a factor exceeding 90%,when the method is applied to the first-order cantilever vibration suppression.The experimental results show that the piezoelectric actuator can effectively perceive structure motion while being driven by charger driver.Furthermore,the method can also be used in numerous fields,such as scanning probe microscopy,monitoring and control of smart structures.