NASA 1996 SBIR Phase I


PROPOSAL NUMBER : 96-1 10.03-3155

PROJECT TITLE : A New Material for Ultra-quiet Precision Structures

TECHNICAL ABSTRACT (LIMIT 200 WORDS)

This proposal is based on patent 5,526,324 which issued June 11, 1996. That patent details a new type of material which is comprised of piezoelectric particles intermixed into a matrix material also containing conducting fibers. Vibrational energy causes charges to be induced on the piezoelectric particles, but that charge is immediately shorted out by the conducting fibers, thereby dissipating the vibrational energy. The technique can be applied to a wide range of matrix material types, allowing us to optimize the material for other properties such as structural strength, light weight, cost, or thermal properties while still achieving better vibration damping than is available from other passive materials. By the end of the Phase 1 effort we will have fabricated and tested samples.
POTENTIAL COMMERCIAL APPLICATIONS
Beyond NASA applications, our approach will be usable for vibration damping for delicate equipment such as high precision machine tools, lithography machines, and scanning probe microscopes. It should also have superior sound reduction characteristics for a wide range of applications including car and aircraft quieting, and sound absorption around buildings and around noisy machinery.
NAME AND ADDRESS OF PRINCIPAL INVESTIGATOR
Dr. Leonard S. Haynes
Intelligent Automation, Inc.
2 Research Place, Suite 202
Rockville, MD 20850
NAME AND ADDRESS OF OFFEROR
Intelligent Automation, Inc.
2 Research Place, Suite 202
Rockville, MD 20850