Aeroelastic tailoring of oscillating supersonic wing with external stores
This paper presents aeroelastic tailoring optimization of a swept back supersonic wing with external stores using composite structure material for the wing skin. The analysis has been conducted to calculate the flutter speeds at several altitudes ranging from a negative altitude of -7,943 ft until...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English English |
| Published: |
Trans Tech Publications Ltd., Switzerland
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/46477/1/AMM.464.110.pdf http://irep.iium.edu.my/46477/4/46477_Aeroelastic%20tailoring%20of%20oscillating_SCOPUS.pdf http://irep.iium.edu.my/46477/ http://www.scientific.net/AMM.464.110 |
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| Summary: | This paper presents aeroelastic tailoring optimization of a swept back supersonic wing with
external stores using composite structure material for the wing skin. The analysis has been conducted
to calculate the flutter speeds at several altitudes ranging from a negative altitude of -7,943 ft until
30000 ft. MSC Nastran software is used to determine the flutter speed. The objective is to get the
lowest possible wing weight by varying the wing skin composite fly angle and thickness as the
optimization variables and by considering flutter speed as the optimization constraint. The constraint
is imposed such that the flutter speed should be similar or higher than flutter speed of a previously
investigated supersonic wing having similar planform but using aluminum as wing skin. The use of
composite suggested that each composite layer thickness and fiber angle can be manipulated to
achieve the target. The present results indicate that the weight of the composite wing skin can be
reduced by 70 % compared to the aluminum wing skin while retaining similar or better flutter speed
boundary envelope |
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