振动能量采集型磁流变阻尼器优化设计及性能分析  

Optimal Design and Performance Analysis of Vibration Energy Harvesting Type Magnetorheological Dampers

作　　者：席兴盛 胡国良 喻理梵 李刚 XI Xingsheng;HU Guoliang;YU Lifan;LI Gang(Key Laboratory of Conveyance and Equipment,State Ministry of Education,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学载运工具与装备教育部重点实验室,南昌330013

出　　处：《噪声与振动控制》2025年第1期262-268,共7页Noise and Vibration Control

基　　金：江西省自然科学基金重点资助项目(20212ACB204002);江西省国际科技合作重点资助项目(20232BBH80010);国家自然科学基金资助项目(52165004)。

摘　　要：自供电状态下振动能量采集型磁流变阻尼器阻尼性能较差,需要对其进行优化设计与性能分析。通过对峰值感应电压、功率密度以及自供电电流的分析计算得出比较系数,以此为指标选取发电装置各关键尺寸;然后在自供电状态下,采用多目标优化算法对减振装置活塞头尺寸及阻尼间隙宽度进行寻优;最后对优化前后的装置进行仿真分析与对比。结果表明,优化后装置的发电性能及其在自供电状态下的阻尼性能均有明显提升;在频率为4 Hz、幅值为10 mm的振动激励下,优化后峰值感应电压提高30%,输出阻尼力提高8.7%,自供电电流强度提高20%,对应的阻尼力提高17%。The vibration energy harvesting magnetorheological damper(MRD)has poor damping performance under self powered state,the optimal design and performance analysis need to be carried out.In this paper,the key parameters of the generator were selected according to the coefficient that was obtained by analyzing and calculating the peak induced voltage,power density,and self supply current.Then,a multi-objective optimization algorithm was used to optimize the piston head size and damping gap width of the damper under self powered state.Finally,simulation analysis and comparison were conducted based on the structural dimensions of the device before and after the optimization.The results show that the damping performance,power generation performance,and damping performance under self powered state of the optimized device have significantly improved.Under the sinusoidal excitation of 10mm amplitude and 4Hz frequency,the optimized peak induced voltage has increased by 30%,the output damping force has increased by 8.7%,and the self supply current has increased by 20%,and the corresponding damping force has increased by 17%.

关 键 词：振动与波 自供电状态 能量采集 磁流变阻尼器 优化设计 仿真分析 

分 类 号：TH703.62[机械工程—仪器科学与技术]