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Active/Passive Attenuation of Sound in Aircraft Interiors

Award Information

Agency:
National Aeronautics and Space Administration 		Branch:
N/A 		Award ID:
54947 		Program Year/Program:
2001 / SBIR
Agency Tracking Number:
991693 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Active Control eXperts, Inc.
215 First Street Cambridge, MA 02142 0122
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2001
Title: Active/Passive Attenuation of Sound in Aircraft Interiors
Agency: NASA
Contract: N/A
Award Amount: $0.00
 

Abstract:

Active Control eXperts (ACX), Inc. proposes a Phase I research and development effort for the development, conceptual design, and proof-of-concept experiment of a hybrid active/passive sound attenuation system for aircraft interiors. While the attenuation of structural vibration and structure-borne sound using passive means is the current state-of-the-art, and active structural acoustic control (ASAC) has received wide attention in the academic community in the past decade, a functional system combining the relative advantages of both approaches has yet to be developed and tested. A successful development and demonstration of such a system will, therefore, constitute a major innovation in the field of structure-borne sound control. The proposed system is a complete sound attenuation solution, including passive-only, active-only, and hybrid surface mounted patches. These patches are completely encapsulated and ready to be bonded to the fuselage panels. The system further includes error sensor, pre-amplifiers, control implementation electronics, and power electronics for the active and hybrid patches. In addition, a comprehensive design methodology is developed for the optimal placement and sizing of the three types of patches, as well as for control law design. The development of such methodology, backed up by commercial manufacturing capability and solid design techniques, will greatly advance the goal of reducing noise pollution in aircraft interiors.

Principal Investigator:

Dr. 1. Pletner
Senior Engineer
baruch@acx.com

Business Contact:

Adam Bogue
VP, Core & New Business
6175770700
bdegon@acx.com
Small Business Information at Submission:

Active Control eXperts, Inc.
215 First Street Cambridge, MA 02142

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No