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首页> 外文期刊>Journal of intelligent material systems and structures >Design of a safety escape device based on magnetorheological fluid and permanent magnet
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Design of a safety escape device based on magnetorheological fluid and permanent magnet

机译：基于磁流变液和永磁体的安全逃生装置设计

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摘要

In this research, a novel safety escape device based on magnetorheological fluid and permanent magnet is designed, manufactured, and tested. The safety escape device with magnetorheological fluid and permanent magnet can provide an increasing braking torque for a falling object by increasing the magnetic field intensity at the magnetorheological fluid. Such increase is realized by mechanically altering the magnetic circuit of the device when the object is falling. As a result, the falling object accelerates first and then decelerates to stop in the end. Finite element analysis is used to determine some of the specifications of the safety escape device for larger braking torque and smaller size. Finite element analysis results are also used for theoretical study and establishment of the dynamic model of the safety escape device. A prototype is realized and tested finally. The experimental test results show that the operation of the prototype conforms to the prediction by the dynamic model and validates the feasible application of magnetorheological fluids in developing falling devices.
机译：在这项研究中，设计，制造和测试了一种基于磁流变液和永磁体的新型安全逃生装置。具有磁流变流体和永磁体的安全逃逸装置可以通过增加磁流变流体处的磁场强度来为下落的物体提供增加的制动扭矩。当物体掉落时，通过机械地改变设备的磁路来实现这种增加。结果，下落的物体首先加速，然后减速，最终停止。对于更大的制动扭矩和更小的尺寸，使用有限元分析来确定安全逃生装置的某些规格。有限元分析结果也用于理论研究和安全逃生装置动力学模型的建立。原型最终实现并经过测试。实验测试结果表明，该样机的运行符合动力学模型的预测，验证了磁流变液在研制下降装置中的可行性。

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  • 作者

    Bintang Yang; Tianxiang Chen; Guang Meng; Zhiqiang Feng; Jie Jiang; Shuo Zhang; Qi Zhou;

  • 作者单位

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, 800# Dongchuan Road, Minhang District, Shanghai 200240, China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China;

    School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, China,LMEE, Universite d' Evry-Val d'Essonne, Evry, France;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China;

    State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Safety escape device; magnetorheological fluid; permanent magnet; device design;

    机译：安全逃生装置;磁流变液永磁体设备设计;

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