超磁致伸缩驱动微泵的磁场优化分析与实验验证

发布时间：2018-03-14 09:46

本文选题：超磁致伸缩微泵　切入点：超磁致伸缩材料(GMM)棒　出处：《科学技术与工程》2017年11期 　论文类型：期刊论文

【摘要】：为使超磁致伸缩驱动微泵中超磁致伸缩材料(GMM)棒获得最佳的磁致伸缩性能,在ANSYS Maxwell软件中建立双线圈式驱动磁场、外线圈内永磁体式驱动磁场、内线圈外永磁体式驱动磁场模型,进行仿真分析,得到三种情况下微泵轴线上平均磁场强度和磁场均匀度,并通过试验验证优选结构的磁场强度和均匀度。结果表明:外线圈长度L_(q1)=104 mm,厚度d_(q1)=12.5 mm;内线圈长度L_(q2)=104 mm,厚度d_(q2)=12.5 mm的双线圈式驱动磁场相对于外线圈内永磁体式和内线圈外永磁体式平均磁场强度提高了117%和8.6%,磁场均匀度下降4%。试验结果与仿真结果基本吻合,验证了仿真模型的正确性。
[Abstract]:In order to obtain the best magnetostrictive performance of the giant magnetostrictive material (GMM) rod in the giant magnetostrictive driving micropump, the double-coil magnetic field is established in ANSYS Maxwell software, and the permanent magnet driving magnetic field in the outside ring is established. The magnetic field model driven by permanent magnet outside the inner circle is simulated and analyzed, and the average magnetic field intensity and magnetic field uniformity on the axis of the micropump are obtained under three conditions. The magnetic field intensity and uniformity of the selected structure are verified by experiments. The results show that the length of the outer coil is 104 mm, the thickness of D / P Q1 is 12.5 mm, the length of the inner coil is 10 4 mm, the length of the inner coil is 10 4 mm, and the thickness of D / D / Q 2 / 2 is 12.5 mm. The magnetic field driven by double coils is relative to the inside and inside of the outer loop. The average magnetic field intensity of the permanent magnet outside the coil increases by 117% and 8.6, and the magnetic field uniformity decreases by 4. The experimental results are in good agreement with the simulation results. The correctness of the simulation model is verified.
【作者单位】：安徽理工大学机械工程学院;
【基金】：国家自然科学基金(51675003,51075001) 安徽省科技计划(1301022074)资助
【分类号】：TH38

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