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首页> 外文期刊>IEEE Transactions on Magnetics >Modeling, Design Optimization, and Verifications of Permanent Magnet Linear Actuators for Structural Vibration Mitigation Applications
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Modeling, Design Optimization, and Verifications of Permanent Magnet Linear Actuators for Structural Vibration Mitigation Applications

机译:用于结构减振应用的永磁直线致动器的建模,设计优化和验证

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摘要

Structural vibrations in modern buildings have been increasing concerns. If not properly controlled, they would give rise to serviceability problems and disturbances to occupants. The permanent magnet (PM) linear actuator-based active vibration mitigation strategy exhibits excellent dynamic performances on elimination of vibrations with complex modes, and has great potential. This paper describes modeling, design optimization, and numerical and experimental verifications of a PM linear actuator for structural vibration mitigation applications. Analytical expressions for prediction of the actuator performance are derived, and the linear actuator is then designed in optimization within a specific set of volumetric and thermal constraints in order to maximize the product of efficiency and power factor. It is shown that the proposed analytical model has provided a computationally efficient tool for design optimization, and the Halbach ratio and actuator width have significant impacts on the performance of the PM linear actuator. The results are validated by finite-element computations, and further verified by experimental measurements on a prototype actuator.
机译:现代建筑中的结构振动已成为人们越来越关注的问题。如果控制不当,则会引起使用性问题和对乘员的干扰。基于永磁(PM)线性致动器的主动减振策略在消除复杂模式的振动方面显示出出色的动态性能,并且具有巨大的潜力。本文介绍了用于结构减振应用的PM线性致动器的建模,设计优化以及数值和实验验证。推导出用于预测执行器性能的分析表达式,然后在一组特定的体积和热约束条件下优化设计线性执行器,以最大化效率和功率因数的乘积。结果表明,所提出的分析模型为设计优化提供了有效的计算工具,Halbach比率和执行器宽度对PM线性执行器的性能有重大影响。结果通过有限元计算得到验证,并通过在原型执行器上的实验测量得到进一步验证。

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