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A curved piezo-structure model: implications on active structural acoustic control.

J K Henry1, R L Clark

  • 1Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708-0302, USA.

The Journal of the Acoustical Society of America
|September 18, 1999
PubMed
Summary
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Active Structural Acoustic Control (ASAC) models for aircraft require understanding curved panel dynamics. This study presents a validated model for curved panels, crucial for reducing aircraft interior noise.

Area of Science:

  • Acoustics
  • Structural Dynamics
  • Aerospace Engineering

Background:

  • Active Structural Acoustic Control (ASAC) is vital for managing noise in aircraft interiors.
  • Accurate modeling of aircraft fuselage curved panels is essential for effective ASAC implementation.

Purpose of the Study:

  • To develop and validate a dynamic model of a simply supported curved panel with piezoelectric transducers.
  • To investigate the impact of panel curvature on structural dynamics and ASAC.

Main Methods:

  • Development of a mathematical model for a simply supported curved panel with integrated piezoelectric transducers.
  • Validation of the model through comparison with existing research and experimental data.

Main Results:

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  • The developed model accurately represents the dynamics of the curved panel.
  • Experimental results confirm the model's predictions.
  • Panel curvature significantly influences panel dynamics, transducer integration, and required control bandwidth.

Conclusions:

  • The validated model provides a foundation for ASAC applications in aircraft.
  • Understanding curvature effects is critical for designing effective noise control systems for aircraft fuselages.