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Vibration response of sandwich plate under Low-velocity impact loading

机译:低速冲击载荷作用下夹心板的振动响应

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摘要

The vibration response of sandwich panels, under low-velocity impact, is presented by using finite element method (FEM) and Hertz contact low. The vibrations on the sandwich plate under the impact are evaluated using the Wigner-Ville distribution. As a result, by formulating a simple model involving the motion of a rigid impactor combined with dynamic equation of sandwich plate, the effect of initial impact velocity and the geometric properties of plate are identified. This numerical simulation that determine the impact force and estimate the behaviour under impact would be very helpful during the sandwich structures design.
机译:通过有限元方法和赫兹接触低,给出了夹层板在低速冲击下的振动响应。使用Wigner-Ville分布评估冲击下夹心板上的振动。结果,通过建立一个包含刚性冲击器运动的简单模型,并结合夹心板的动力学方程,确定了初始冲击速度的影响和板的几何特性。在夹层结构设计中,这种确定冲击力并估计冲击下行为的数值模拟将非常有帮助。

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