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Study on torque density enhancement mechanism of elliptic arc multi-disk MRF coupling
International Journal of Applied Electromagnetics and Mechanics ( IF 0.6 ) Pub Date : 2021-03-01 , DOI: 10.3233/jae-201585
Hui Sun 1 , Zhangyan Zhao 1 , Gongxian Wang 1 , Chao Zhu 1 , Binbin Yu 1
Affiliation  

The transfer energy of a magnetorheological fluid (MRF) coupling can be dynamically regulated by changing the MRF mechanical properties of its input and output shafts. In addition, the dynamic characteristics of its drive system can automatically be in the tune with its load characteristics to effectively suppress vibration and shock responses, to achieve overload protection of the system, and to improve its mechanical performance and safety reliability. However, the weak mechanical properties of MRF materials result in so small a coupling torque density that the MRF coupling applications for high-torque transfer is restricted. Thus, to increase the coupling torque density is becoming an urgent key technological challenge in this field. A technique based on shear-pressure mixed mode was proposed here to increase the torque density by utilizing the formation mechanism of MRF arc flux linkage. Futhermore, a new high torque arc multi-disk MRF coupling structure was designed and its corresponding mechanical torque transfer model was established. A FEA electromagnetic simulation was performed to study the distribution of the magnetic field in the MRF chamber under different current excitations. Effects of the key parameters of the elliptical arc on its transfer torque were also investigated. Finally, experimental analysis of the mechanical properties of the elliptical disk MRF coupling was conducted to verify the feasibility of the proposed technique and the validity of the torque transfer model.

中文翻译:

椭圆弧多盘MRF联轴器扭矩密度增强机理研究

磁流变流体(MRF)联轴器的传递能量可以通过更改其输入轴和输出轴的MRF机械性能来动态调节。此外,其驱动系统的动态特性可以自动与其负载特性保持一致,从而有效地抑制振动和冲击响应,实现系统的过载保护,并提高其机械性能和安全可靠性。但是,MRF材料的较弱的机械性能会导致耦合扭矩密度过小,从而限制了MRF耦合器在高扭矩传递中的应用。因此,增加联接扭矩密度已成为该领域中迫在眉睫的关键技术挑战。本文提出了一种基于剪切压力混合模式的技术,通过利用MRF电弧通量的形成机理来增加转矩密度。此外,设计了一种新的高扭矩电弧多盘MRF耦合结构,并建立了相应的机械扭矩传递模型。进行了FEA电磁仿真,以研究在不同电流激励下MRF室中的磁场分布。还研究了椭圆弧关键参数对其传递扭矩的影响。最后,对椭圆盘MRF联轴器的机械性能进行了实验分析,以验证所提出的技术的可行性和扭矩传递模型的有效性。设计了一种新的高扭矩电弧多盘MRF耦合结构,并建立了相应的机械扭矩传递模型。进行了FEA电磁仿真,以研究在不同电流激励下MRF室中的磁场分布。还研究了椭圆弧关键参数对其传递扭矩的影响。最后,对椭圆盘MRF联轴器的机械性能进行了实验分析,以验证所提出的技术的可行性和扭矩传递模型的有效性。设计了一种新的高扭矩电弧多盘MRF耦合结构,并建立了相应的机械扭矩传递模型。进行了FEA电磁仿真,以研究在不同电流激励下MRF室中的磁场分布。还研究了椭圆弧关键参数对其传递扭矩的影响。最后,对椭圆盘MRF联轴器的机械性能进行了实验分析,以验证所提出的技术的可行性和扭矩传递模型的有效性。还研究了椭圆弧关键参数对其传递扭矩的影响。最后,对椭圆盘MRF联轴器的机械性能进行了实验分析,以验证所提出的技术的可行性和扭矩传递模型的有效性。还研究了椭圆弧关键参数对其传递扭矩的影响。最后,对椭圆盘MRF联轴器的机械性能进行了实验分析,以验证所提出的技术的可行性和扭矩传递模型的有效性。
更新日期:2021-03-07
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