Aero-Elastic Flutter Characteristics of Laminated Composite Panel Embedded with Shape Memory Alloy Wires |
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| Authors: | Dengqing Cao Chonghui Shao Yuqian Xu and Hai Zhao |
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| Affiliation: | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China,School of Astronautics, Harbin Institute of Technology, Harbin 150001, China,School of Astronautics, Harbin Institute of Technology, Harbin 150001, China and Resource Department, Southwest China Research Institute of Electronic Equipment, Chengdu 610000, China |
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| Abstract: | The effects of shape memory alloy (SMA) wires on the natural frequency, flutter boundary and amplitude of limit cycle oscillation (LCO) of a laminated composite panel are investigated. The classical plate theory as well as von-Karman strain-displacement relation are used to formulate the nonlinear dynamic model of the smart laminated panel. The aerodynamic loadings are simulated by the third order piston theory. The thermo-mechanical behavior of SMA wires is estimated according to one-dimensional Brinson SMA model. The effects of SMA wires temperature, pre-strain, volume fraction and orientation on flutter boundary and amplitude of LCO of the panel are analyzed in detail. |
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| Keywords: | panel flutter shape memory alloy laminates limit cycle oscillation |
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