Invention Grant
- Patent Title: High stiffness shape memory alloy actuated aerostructure
- Patent Title (中): 高刚度形状记忆合金致动空气结构
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Application No.: US12537002Application Date: 2009-08-06
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Publication No.: US08434293B2Publication Date: 2013-05-07
- Inventor: Richard D. Widdle, Jr. , Matthew T. Grimshaw , Kava S. Crosson-Elturan , James H. Mabe , Frederick T. Calkins , Lynn M. Gravatt , Moushumi Shome
- Applicant: Richard D. Widdle, Jr. , Matthew T. Grimshaw , Kava S. Crosson-Elturan , James H. Mabe , Frederick T. Calkins , Lynn M. Gravatt , Moushumi Shome
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Ameh IP
- Agent Elahe Toosi; Lowell Campbell
- Main IPC: F02K1/40
- IPC: F02K1/40 ; F02K3/04

Abstract:
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.
Public/Granted literature
- US20110030380A1 HIGH STIFFNESS SHAPE MEMORY ALLOY ACTUATED AEROSTRUCTURE Public/Granted day:2011-02-10
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