| Author Name | Affiliation | | Dengqing Cao | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China | | Chonghui Shao | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China | | Yuqian Xu | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China | | Hai Zhao | 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. |
| Key words: panel flutter shape memory alloy laminates limit cycle oscillation |
| DOI：10.11916/j.issn.1005-9113.16049 |
| Clc Number:TP391.7 |
| Fund: |
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| Descriptions in Chinese: |
| 超声速流中铺设形状记忆合金丝的复合材料壁板的 颤振研究 曹登庆1，邵崇晖1，许玉乾1，赵海2 （1.哈尔滨工业大学 航天学院，哈尔滨 150001； 2.中国电子科技集团公司第二十九研究所，成都 610000） 创新点说明：建立了分析铺设形状记忆合金丝的壁板颤振的新方法，并将此方法应用于研究形状记忆合金参数和安装角度对颤振抑制效果的影响。 研究目的： 研究超声速流中铺设形状记忆合金丝的复合材料壁板的颤振特性。分析了形状记忆合金的份数、预应变和温度对壁板临界颤振动压以及降低极限环幅值的影响。 研究方法： 采用von Karman大变形位移应变关系和三阶气动活塞理论描述壁板颤振模型中的几何非线性因素和气动非线性因素，基于Brison本构模型描述形状记忆合金丝的非线性恢复力，利用Hamilton原理建立超声速流中壁板的非线性运动微分方程。采用伽辽金离散法对所得的壁板偏微分运动方程进行空间离散，得到壁板的常微分运动方程组，最后采用Runge-Kutta法对壁板的动力学响应进行数值模拟。采用非线性动力学理论求解了壁板的临界颤振动压。 结果： 在复合材料层合板中铺设形状记忆合金丝可以提高壁板的临界颤振动压，形状记忆合金的最佳铺设角度是沿着气流来流方向。 结论： 通过加热形状记忆合金、增加其份数和预应变可以提高壁板的临界颤振动压，并且可以降低极限环颤振幅值。 关键词：壁板颤振，形状记忆合金，复合材料，极限环振动 |
