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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >Proposal and Preliminary Feasibility Study of a Novel Toroidal Magnetorheological Piston
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Proposal and Preliminary Feasibility Study of a Novel Toroidal Magnetorheological Piston

机译：新型环形磁流变活塞的建议及初步可行性研究

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摘要

A new magnetorheological piston head design inspired by toroidal electromagnets was proposed in previous work as an alternative to conventional annular dampers. A prototype with a circular valve array integrated inside the piston head was built and tested to measure its passive performance. The mechanical, electromagnetic, and hydraulic models used in the new design were explained, and the relevant parameters of the actuator were analyzed to construct a mathematical model to estimate its performance. These works showed the feasibility of the concept and its potential as an alternative to current damper technology, but lacked a baseline for comparison. This paper reviews and widens this groundwork. It adds a magnetic finite element method study to address the previously found leakage, and a new set of experiments, including a force controller, to compare its performance against a conventional annular piston head. The new findings show how the current force limitations can be overcome by striking a balance between the coil space and the size of electromagnet cores to achieve the performance of current dampers. They also highlight its potential in force control applications to provide a wider range of customization options, such as number and size of holes, electromagnets, and coils, and a better use of the active area of the gap.
机译：在以前的工作中提出了一种新的由环形电磁体启发的磁流变活塞头设计，以替代传统的环形阻尼器。构建并在活塞头内部集成了圆形阀阵列的原型，并对其进行了测试，以测量其被动性能。解释了新设计中使用的机械，电磁和液压模型，并对执行器的相关参数进行了分析，以构建数学模型来评估其性能。这些工作表明了该概念的可行性及其作为替代当前阻尼器技术的潜力，但缺乏比较的基准。本文回顾并拓宽了这一基础。它增加了磁性有限元方法研究以解决先前发现的泄漏，并增加了一组新的实验（包括力控制器）以将其性能与常规环形活塞头进行比较。新发现表明，如何通过在线圈空间和电磁体铁心的尺寸之间取得平衡来克服电流限制，以实现电流阻尼器的性能。他们还强调了其在力控制应用中的潜力，可提供范围更广的定制选项，例如孔，电磁体和线圈的数量和大小，以及更好地利用间隙的有效面积。

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