Compressed Mesh Washer Isolators Using the Pseudoelasticity of SMA for Pyroshock Attenuation

Pyroshock can cause malfunctions of electric components of launch vehicles or satellites, resulting in a catastrophic flight failure. This study introduces a new compressed mesh washer pyroshock isolator using the pseudoelasticity of Ni-Ti alloy wire. The compressed mesh washer isolators were manufactured and tested to evaluate their pyroshock isolation performances. For comparison purposes, shape memory alloy compressed mesh washer isolator was also manufactured. The variations in the dynamic characteristic of the compressed mesh washer isolators due to precompressive displacements were also studied. The results showed that the natural frequency and the isolation capacity can be adjusted by controlling the precompressive displacement of the compressed mesh washer isolator. These characteristics can be used for a smart isolation system that utilizes the adjustable dynamic characteristics of the compressed mesh washer isolators.
Publisher
SAGE PUBLICATIONS LTD
Issue Date
2010-03
Language
ENG
Keywords

PASSIVE VIBRATION ISOLATION; SPRING ELEMENTS; ACTUATOR

Citation

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, v.21, no.4, pp.407 - 421

ISSN
1045-389X
DOI
10.1177/1045389X09355665
URI
http://hdl.handle.net/10203/24814
Appears in Collection
AE-Journal Papers(저널논문)
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