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Proceedings Paper

Development and demonstration of INSTAR: inertially stabilized rifle
Author(s): Diann E. Brei; James Vendlinski; Douglas K. Lindner; Huiyu Zhu; Chris LaVigna
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Paper Abstract

While good marksmanship is key to the effectiveness of the infantry mission, all soldiers experience a decrease in accuracy due to combat stress that generates detrimental physiological effects. INSTAR is a tactical rifle designed to address these effects by decoupling unwanted shooter-induced disturbances from the barrel via an active suspension system. The critical design driver for this active suspension was the "complete" actuation system (actuation, driving electronics and power supply). This paper presents an overview to the INSTAR architectural design along with the challenging actuation requirements. The architectural development and experimental performance characterization of the selected Recurve piezoceramic actuation system is discussed in detail along with the specialized driving electronics needed for power conservation. Range-of-motion experiments were conducted on a full-scale, 1 DOF INSTAR prototype, demonstrating the necessary actuation system control authority for a successful active suspension.

Paper Details

Date Published: 5 August 2003
PDF: 12 pages
Proc. SPIE 5056, Smart Structures and Materials 2003: Smart Structures and Integrated Systems, (5 August 2003); doi: 10.1117/12.483457
Show Author Affiliations
Diann E. Brei, Univ. of Michigan (United States)
James Vendlinski, Univ. of Michigan (United States)
Douglas K. Lindner, Virginia Polytechnic Institute and State Univ. (United States)
Huiyu Zhu, Virginia Polytechnic Institute and State Univ. (United States)
Chris LaVigna, Techno-Sciences, Inc. (United States)


Published in SPIE Proceedings Vol. 5056:
Smart Structures and Materials 2003: Smart Structures and Integrated Systems
Amr M. Baz, Editor(s)

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