磁流变阻尼器结构设计与能量采集效能仿真与试验
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国家自然科学基金项目(51765016)


Structure Design and Energy Harvesting Efficiency Simulation and Test of Magnetorheological Damper
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    摘要:

    设计了一种集阻尼可控、位移自感应和振动能量采集功能于一体的自感应振动能量采集型磁流变阻尼器,对设计的单感应线圈式、双感应线圈式振动能量采集装置进行了电磁场仿真分析。搭建了试验测试系统,测试分析了单感应线圈式、双感应线圈式振动能量采集装置的能量采集效能,分析了弱导磁性不锈钢绕线架和不导磁PLA绕线架对能量采集效能的影响。测试结果表明,在幅值为7.5mm、频率为4Hz的正弦位移激励下,双感应线圈式振动能量采集装置采集的感应电压幅值为2512V、能量采集功率为1.5W,其能量采集效能约为单感应线圈式的2倍;弱导磁性与不导磁绕线架的能量采集效能几乎相同。

    Abstract:

    A novel magnetorheological damper (MRD) integrated with controllable damping, displacement selfinduced and vibration energy harvesting ability was proposed to solve the problems of simple function integration and low efficiency of vibration energy harvesting in conventional MRD systems. The working principle of the proposed MRD was analyzed, especially the principle of vibration energy harvesting device with a single induction coil and a double induction coil, and winding frame with a nonmagnetic and a lowmagnetic material were explained in detail. Then, the vibration energy harvesting device with the single induction coil and double induction coil was simulated by ANSYS software. The prototype of the proposed MRD was manufactured, and the experimental test system was also set up. Afterwards, the energy harvesting performance of the developed MRD with the single induction coil and double induction coil was experimentally tested, respectively. The experimental results showed that the induced voltage with the double induction coil was 2512V and the energy harvest power with the double induction coil was 1.5W under the sinusoidal displacement excitation with 7.5mm amplitude and 4Hz frequency, and the energy harvesting efficiency was about twice of that with the single induction coil. In addition, the energy harvesting efficiency with the nonmagnetic and lowmagnetic winding frame of the proposed MRD was almost the same.

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胡国良,易锋,刘浩,邵帅,喻理梵.磁流变阻尼器结构设计与能量采集效能仿真与试验[J].农业机械学报,2020,51(8):391-399. HU Guoliang, YI Feng, LIU Hao, SHAO Shuai, YU Lifan. Structure Design and Energy Harvesting Efficiency Simulation and Test of Magnetorheological Damper[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(8):391-399.

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  • 收稿日期:2019-11-11
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  • 在线发布日期: 2020-08-10
  • 出版日期: 2020-08-10