【作者】 邓行； 冶继民； 黄冬梅；

【Author】 Deng Hang;Ye Jimin;Huang Dongmei;Xidian University;

【机构】 西安电子科技大学；

【摘要】 一个具有两个调谐振子的能量采集系统被研究,通过谐波平衡法,得到了确定性系统的完整理论解。随着外力和频率的改变,得到了系统的多解响应特性。系统的幅值解最多可以有九个。同时,具有两个调谐振子的能量采集器比具有一个调谐振子的能量采集器具有更高的电压,动力学行为更加复杂。根据等效线性化和矩方法,得到了随机系统的均方电压的解析解。更多还原

【Abstract】 An energy harvesting system with two detuning magnetoelastic oscillators is studied in this paper.The complete theoretical solutions of the deterministic system are investigated by the harmonic balance method.With the excitation force and frequency changed,the multi-solution characteristic can be obtained.And the amplitudes have nine solutions at most with the change of the excitation frequency.Meanwhile,the energy harvester with two magnetoelastic oscillators has higher voltage and more complex dynamic phenomena than the energy harvester with one magnetoelastic oscillator.By combining the equivalent linearization method and the moment method of random process theory,the analytical solutions of mean square voltage under stochastic disturbance are obtained.更多还原