Working Principle of Elevator Traction Transmission Device Based on MRF
Abstract:
This study aims to develop a novel Magneto-rheological Fluid
(MRF) elevator traction transmission with a high-torque capacity. The MRF device
has the property that transmitting torque and braking torque values changes
quickly in response to an external magnetic field strength. In this study, the
fundamental design method of the cylindrical MR traction transmission device
is investigated theoretically. A Bingham model is used to characterize the constitutive
behavior of the MRF subject to an external magnetic field strength. The theoretical
method is developed to analyze the torque transmitted by the MR fluid within
the design. An engineering expression for the torque is derived to provide the
theoretical foundation in the design of the coupler and brake. Based on this
equation, the volume and thickness of the annular MRF within the coupler and
brake is yielded after algebraic manipulation. The study shows the design of
the MRF traction transmission conforms to the torque requirements for elevators
safety. It certifies that the appropriateness of the experimental design and
method, the analysis and interpretation of the data are sufficiently.
How to cite this article
Zheng Xiang Pan and Chen Shu Mei, 2013. Working Principle of Elevator Traction Transmission Device Based on MRF. Journal of Applied Sciences, 13: 2491-2497.
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