Use of a Ni60Ti shape memory alloy for active jet engine chevron application: II. Experimentally validated numerical analysis

A shape memory alloy (SMA) composition of Ni60Ti40 (wt%) was chosen for the fabrication of active beam components used as cyclic actuators and incorporated into morphing aerospace structures. The active structure is a variable-geometry chevron (VGC) designed to reduce jet engine noise in the take-of...

Full description

Saved in:
Bibliographic Details
Published in:Smart materials and structures 2010-01, Vol.19 (1), p.015021-015021 (18)
Main Authors: Hartl, D J, Mooney, J T, Lagoudas, D C, Calkins, F T, Mabe, J H
Format: Article
Language:English
Subjects:
Applied sciences
Continuous cycle engines: steam and gas turbines, jet engines
Engines and turbines
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Mechanical engineering. Machine design
Physics
Solid mechanics
Structural and continuum mechanics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A shape memory alloy (SMA) composition of Ni60Ti40 (wt%) was chosen for the fabrication of active beam components used as cyclic actuators and incorporated into morphing aerospace structures. The active structure is a variable-geometry chevron (VGC) designed to reduce jet engine noise in the take-off flight regime while maintaining efficiency in the cruise regime. This two-part work addresses the training, characterization and derived material properties of the new nickel-rich NiTi composition, the assessment of the actuation properties of the active beam actuator and the accurate analysis of the VGC and its subcomponents using a model calibrated from the material characterization.
ISSN:0964-1726
1361-665X
DOI:10.1088/0964-1726/19/1/015021