Thermal and mechanical characteristics of loudspeakers using a magnetic gap filled with a magnetorheological suspension

Z. P. Shul'man, V. I. Kordonskii, Boris Khusid, G. K. Voronovich, S. A. Demchuk, V. A. Kuz'min

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents some theoretical and experimental results of a study of the heat-transfer characteristics of the voice coil of an electrodynamic loudspeaker and the mechanics of its movable system for a gap filled with a magnetorheological suspension. The heat transfer and motion of the voice coil of a type 4GD-35 electrodynamic loudspeaker were investigated experimentally at the resonance frequency. The coil was heated by a high-frequency signal which was delivered together with the low-frequency signal driving the coil. The motion of the coil under unsteady nonisothermal conditions was modeled under the assumption that the suspension undergoes Couette flow in the gap of the coil.

Original languageEnglish (US)
Pages (from-to)71-76
Number of pages6
JournalMagnetohydrodynamics New York, N.Y.
Volume24
Issue number1
StatePublished - Jul 1 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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