Implementation of Exaggerated Actuation and Bearing-Free Rotational Mobility in Smart Hinges

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 28046
Amount: $77,327.00
Phase: Phase I
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
4300 San Mateo Blvd., Ne, Suite A220, Albuquerque, NM, 87110
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dirk B. Warnaar
 (919) 876-0018
Business Contact
Phone: () -
Research Institution
Under the proposed research a single degree-of-freedom hinge will be developed that exaggerates actuation by either a piezoceramic or a shape-memory alloy. The proposed hinge is a marriage of two concepts, one providing exaggerated excitation and the other providing bearing-free rotational mobility. The first concept translates the relatively small motion achievable with smart materials (shape-memory alloys or piezoceramics) into a large rotation using appropriate rolling contact surfaces. The second concept comprises a hinge equipped with conical inserts that when activated allow free rotational movement about the hinge's axis but otherwise pre-load the hinge. The rotational mobility of this hinge does therefore not compromise the load carrying capability of the hinge, nor its predictability and reliability. The features of the aforementioned concepts are combined to create a low cost versatile hinge that provides actuation, is highly reliable and predictable.

* Information listed above is at the time of submission. *

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