Characterizing Operational Performance of Rotary Subwoofer Loudspeaker

Abstract

The US Army Research Laboratory (ARL) is currently investigating using high-speed video cameras to measure vibrations of objects excited by soundwaves. A commercial rotary subwoofer speaker is one of the sources used to generate low-frequency soundwaves. Laboratory testing was performed on the speaker to understand the tradeoffs between the rotation rate of the fan blades and the amplitude of the articulation of the fan blades to maximum the amplitude on the resulting acoustic pressure waves.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2017
Accession Number
AD1040271

Entities

People

  • Caitlin P Conn
  • Geoffrey H. Goldman
  • Minas D Benyamin

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Amplitude
  • Blades
  • Cameras
  • Fan Blades
  • Fans
  • Frequency
  • Frequency Shift
  • Loudspeakers
  • Measurement
  • Military Research
  • Modulation
  • Oscilloscopes
  • Test Equipment
  • Video Cameras
  • Waveform Generators
  • Waves

Readers

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  • Structural Dynamics.