层合复合材料壁板的热颤振特性分析

杨智春;夏巍;张蕊丽

振动与冲击 ›› 2010, Vol. 29 ›› Issue (9) : 18-22.

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PDF(1410 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (9) : 18-22.
论文

层合复合材料壁板的热颤振特性分析

  • 杨智春1;夏巍1,2;张蕊丽1
作者信息 +

Study on Thermal Flutter Characteristics of Laminated Composite Panels

  • YANG Zhichun1; XIA Wei1,2; ZHANG Ruili1
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文章历史 +

摘要

摘要:采用壁板颤振分析的有限元方法,从壁板的正则化弯曲刚度、屈曲临界温升、颤振临界速压和极限环颤振幅值等参数的角度,分析了不同铺层方向和不同铺层顺序对层合复合材料壁板的颤振特性的影响,并给出了几种常见铺层方式层合复合材料壁板的颤振特性。结果表明,在设计复合材料壁板的铺层方向和铺层顺序时,一般可以通过壁板正则化弯曲刚度的大小来对颤振速压进行比较。但是在某些特殊的铺层情况下,随着温度升高,发生频率重合型颤振的耦合模态会发生演变,这时正则化弯曲刚度较大的壁板也有可能在较低的速压下发生颤振。

Abstract

Abstract
Using the finite element method for panel flutter analysis, the impact of laminates lay-up orientation and sequence on the flutter characteristics of composite laminated panels are investigated by examining the parameters of normalized bending stiffness, critical buckling temperature elevation, the critical flutter dynamic pressure and limit cycle flutter amplitude of the panel. And the thermal flutter characteristics of some typical composite laminated panels are presented. The results show that, in general, the normalized panel bending stiffness can be used as the index of qualitative comparison for flutter properties in the design of laminates lay-up orientation and sequence of composite laminated panels. But in some special cases, in which the transition of flutter modes may be induced along with the temperature elevation, the flutter of the panel with larger normalized bending stiffness may occur at lower dynamic pressure.

关键词

复合材料 / 壁板 / 热颤振 / 铺层方向 / 铺层顺序

Key words

laminated composites / panel / thermal flutter / lay-up orientation / lay-up sequence

引用本文

导出引用
杨智春;夏巍;张蕊丽. 层合复合材料壁板的热颤振特性分析[J]. 振动与冲击, 2010, 29(9): 18-22
YANG Zhichun;XIA Wei;ZHANG Ruili. Study on Thermal Flutter Characteristics of Laminated Composite Panels[J]. Journal of Vibration and Shock, 2010, 29(9): 18-22

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