风载作用下的超磁致伸缩能量采集与非线性振动控制一体化分析

Integrated Analysis of Giant Magnetostrictive Energy Harvesting and Nonlinear Vibration Control with Wind Load

研究了风载作用下非线性能量阱(NES)减振和超磁致伸缩材料(GMM)能量采集一体化机理,该系统拥有良好的振动抑制效果和风载作用下的能量采集性能。利用Hamilton原理建立了位移驱动下的数学模型,并用Runge-Kutta算法进行了数值仿真,考察该系统的振动抑制效果,分析了超磁致(GMM)结构的能量采集效应。最后,进行了质量和风载相关参数的对比分析。研究结果表明,风载作用下的超磁致伸缩能量采集与非线性振动控制一体化系统具有良好的减振和能量采集效果。

In this paper, the mechanism of energy collection integration of nonlinear energy sink (NES) and giant magnetostrictive material (GMM) under wind load is studied. This system has good effect of vibration suppression and energy harvesting with wind load. By using Hamilton principle and Newton’s second law, the mathematical model driven by displacement is established, and the simulation is carried out with Runge-Kutta algorithm. The vibration suppression effect of the system is investigated, and the energy harvesting effect of GMM is analyzed. Finally, a comparative analysis of mass and wind load parameters is carried out. The results show that the integrated system of giant magnetostrictive energy harvesting and nonlinear vibration control with wind load has good effect of vibration reduction and energy harvesting.