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Proceedings Paper

Development and test of an HTSMA supersonic inlet ramp actuator
Author(s): Todd R. Quackenbush; Bernie F. Carpenter; Alexander H. Boschitsch; Pavel V. Danilov
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Paper Abstract

Use of Shape Memory Alloy (SMA) actuation technology is a candidate method for reducing weight and power requirements for inlet flow control actuators in prospective supersonic passenger aircraft. The high speed/high Mach operating points of such aircraft can also call for the use of High Temperature SMAs, with transition temperatures beyond those of typical binary NiTi alloys. This paper outlines a demonstration project that entailed both testing and assessment of newly developed NiTiPt HTSMAs, as well as their use in an actuation application representative of inlet configurations. The project featured benchtop testing of an HTSMA-actuated ramp model as well as experiments in a high speed wind tunnel at loads representative of supersonic conditions. The ability of the model to generate adequate force and actuation stroke for this application is encouraging evidence the feasibility of NiTiPt-based devices for inlet flow control.

Paper Details

Date Published: 19 March 2008
PDF: 11 pages
Proc. SPIE 6930, Industrial and Commercial Applications of Smart Structures Technologies 2008, 69300P (19 March 2008); doi: 10.1117/12.775782
Show Author Affiliations
Todd R. Quackenbush, Continuum Dynamics, Inc. (United States)
Bernie F. Carpenter, BBC Consultants (United States)
Alexander H. Boschitsch, Continuum Dynamics, Inc. (United States)
Pavel V. Danilov, Continuum Dynamics, Inc. (United States)

Published in SPIE Proceedings Vol. 6930:
Industrial and Commercial Applications of Smart Structures Technologies 2008
L. Porter Davis; Benjamin Kyle Henderson; M. Brett McMickell, Editor(s)

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