Fundamental frequency of hybrid composite plate embedded with shape memory alloy wire
Fundamental frequency had been identified as one of the most critical parameter in vibration study which may lead to structure failure during resonance. One of the most interesting behaviors of Shape Memory Alloy (SMA) is that the fundamental frequency of the structure shifted when different tempera...
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| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/4272/ http://eprints.uthm.edu.my/4272/1/32_CEM37%2DFundmtl_Freq_of_Hybrid_Composite_Plate_SMA_Wire..pdf |
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| Summary: | Fundamental frequency had been identified as one of the most critical parameter
in vibration study which may lead to structure failure during resonance. One of
the most interesting behaviors of Shape Memory Alloy (SMA) is that the
fundamental frequency of the structure shifted when different temperature levels
applied onto it. The fundamental frequency of hybrid composite plate embedded
with the SMA wire was studied using impact hammer testing on different
boundary conditions. The structure was applied with DC to the SMA wire. The
results showed that the fundamental frequency and damping ratio for the hybrid
composite plate were shifted and it depend on the heat level applied to the
Flexinol wire and the boundary conditions of the plate. The highest value of the
fundamental frequency that shifted was about 44.4% with boundary condition CF-
C-F with 0.5 A DC applied and the damping at fundamental frequency, 6.23
unit changes detected for the C-F-F-F boundary condition but with 1.25 A DC
applied. |
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