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Related Experiment Video

Updated: Jun 22, 2026

Interactive and Visualized Online Experimentation System for Engineering Education and Research

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Published on: November 24, 2021

A double-panel active segmented partition module using decoupled analog feedback controllers: numerical model.

Jason D Sagers¹, Timothy W Leishman, Jonathan D Blotter

¹Department of Mechanical Engineering, Brigham Young University, Provo, Utah 84602, USA.

The Journal of the Acoustical Society of America

|June 11, 2009

Summary

This summary is machine-generated.

Active segmented partitions (ASPs) improve low-frequency sound isolation in lightweight structures. This study develops a theoretical and numerical model for a single ASP module, demonstrating its bidirectional sound isolation capabilities.

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Area of Science:

Acoustics
Structural Engineering
Control Systems

Background:

Lightweight partitions exhibit poor low-frequency sound isolation.
Active control structures have been explored to mitigate sound transmission.
Active segmented partitions (ASPs) offer a potential solution for enhanced sound isolation.

Purpose of the Study:

To develop a theoretical and numerical model for a single ASP module.
To investigate the performance of independently actuated panels in a double-panel structure.
To demonstrate the bidirectional sound isolation capabilities of ASPs.

Main Methods:

Development of a theoretical model for a single ASP module.
Numerical modeling to estimate frequency response functions.
Analysis of acoustic coupling effects between panels.
Simulation of transmission loss in passive and active states.

Main Results:

A numerical model was successfully developed for the ASP module.
The model accounts for acoustic coupling between panels.
Transmission loss was predicted for both passive and active configurations.
The proposed ASP module demonstrated bidirectional sound isolation.

Conclusions:

The developed ASP module shows promise for improving low-frequency sound isolation.
Independent actuation and control of partition segments are effective.
ASPs offer a viable strategy for achieving bidirectional sound isolation in lightweight structures.