论文部分内容阅读
根据仿真设计和计算结果,制备了悬臂梁结构压电陶瓷复合材料,并考察了其振动发电性能。对复合材料的内外阻抗进行匹配,获得了最大的功率输出并在最佳阻抗匹配条件下,研究了振动发电性能与激励振幅和频率的关系。研究结果表明,压电复合材料的振动发电功率随着激励振幅的增大呈二阶增大,随着激励频率的增大呈线性增大。
Based on the simulation design and calculation results, the piezoelectric ceramic composites with cantilever structure were fabricated and their vibrational power generation performances were investigated. The internal and external impedance of the composite was matched and the maximum power output was obtained. Under optimal impedance matching conditions, the relationship between vibrational power generation performance and excitation amplitude and frequency was studied. The results show that the vibration power of piezoelectric composite increases in the second order with the increase of excitation amplitude, and increases linearly with the increase of excitation frequency.