发明名称 |
HIGH STIFFNESS SHAPE MEMORY ALLOY ACTUATED AEROSTRUCTURE |
摘要 |
A shape memory alloy (SMA) actuated aerostructure operable to dynamically change shape according to flight conditions is disclosed. Deformable structures are actuated by SMA actuators that are coupled to face sheets of the deformable structures. Actuating the SMA actuators produces complex shape changes of the deformable structures by activating shape changes of the SMA actuators. The SMA actuators are actuated via an active or passive temperature change based on operating conditions. The SMA actuated aerostructure can be used for morphable nozzles such as a variable area fan nozzle and/or a variable geometry chevron of a jet engine to reduce engine noise during takeoff without degrading fuel burn during cruise.
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申请公布号 |
US2011030380(A1) |
申请公布日期 |
2011.02.10 |
申请号 |
US20090537002 |
申请日期 |
2009.08.06 |
申请人 |
THE BOEING COMPANY |
发明人 |
WIDDLE, JR. RICHARD D.;GRIMSHAW MATTHEW T.;CROSSON-ELTURAN KAVA S.;MABE JAMES HENRY;CALKINS FREDERICK T.;GRAVATT LYNN MARIE;SHOME MOUSHUMI |
分类号 |
F02K1/00;B05B12/00 |
主分类号 |
F02K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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