Nonlinear flutter of two-dimensional simply supported symmetric composite laminated plates
Nonlinear flutter of two-dimensional simply supported symmetric composite laminated plates
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DOI：
10.2514/3.46137
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发表时间：
1992
影响因子：
2.2
通讯作者：
L. Shiau;Li Lu
中科院分区：
文献类型：
--
作者：
L. Shiau;Li Lu
研究了高超声速马赫数下二维对称简支复合材料层合板的非线性颤振特性。采用YonKarman的大挠度板理论和准定常气动力理论。利用Galerkin方法将控制方程在时间上化为一个非线性常微分方程组，然后用直接数值积分法求解。非线性颤振结果的影响，气动阻尼，面内力，静压差，和各向异性特性。结果表明，纤维取向和弹性模量比等各向异性对极限环振荡和混沌运动都有显著影响。
The nonlinear flutter behavior of a two-dimensional simply supported symmetric composite laminated plate at high supersonic Mach number has been investigated. Yon Karman's large deflection plate theory and quasisteady aerodynamic theory have been employed. Galerkin's method has been used to reduce the governing equations to a system of nonlinear ordinary differential equations in time, which are then solved by a direct numerical integration method. Nonlinear flutter results are presented with the effects of aerodynamic damping, in-plane force, static pressure differential, and anisotropic properties. Results show that the anisotropic properties such as fiber orientation and elastic modulus ratio have significant effects on the behavior of both limit cycle oscillation and chaotic motion.