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Torque enhancement possibilities for energy-efficient MRF-based coupling elements
Author(s): Christian Hegger; Jürgen Maas
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Paper Abstract

The requirements for transmission and coupling elements are rising continuously. Our previous investigations were focused on the elimination of viscous induced drag-torques in coupling elements based on magnetorheological fluids by a MR-fluid movement control. For a further reduction of weight and space requirements a design of a magnetic circuit with a serpentine flux guidance was introduced last year. For a further enhancement of the torque density a design based on multiple shear gaps is proposed in this contribution. Due to the MR-fluid movement control using partially filled shear gaps a simple arrangement of several coaxial shear gaps is not applicable. Instead, each shear gap has to be separated by a novel MR-fluid sealing, which allows also a drag- torque free operation above certain rotational speeds. Combining these features result in a MRF-based coupling element with an enhanced torque density at simultaneously reduced drag-torque.

Paper Details

Date Published: 16 March 2018
PDF: 8 pages
Proc. SPIE 10595, Active and Passive Smart Structures and Integrated Systems XII, 1059531 (16 March 2018); doi: 10.1117/12.2302393
Show Author Affiliations
Christian Hegger, Technische Univ. Berlin (Germany)
Jürgen Maas, Technische Univ. Berlin (Germany)

Published in SPIE Proceedings Vol. 10595:
Active and Passive Smart Structures and Integrated Systems XII
Alper Erturk, Editor(s)

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