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Free vibration analysis of generally laminated beams via state-space-based differential quadrature

机译:基于状态空间的微分求积分法,对叠层梁进行自由振动分析

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摘要

A new method of state-space-based differential quadrature is presented for free vibration of generally laminated beams. By discretizing the state space formulations along the axial direction using the technique of differential quadrature, new state equations at discrete points are established. Applying end conditions and using matrix theory, the general solution is derived. Taking account of the boundary conditions at the top and bottom planes, frequency equation governing the free vibration of generally laminated beams is then formulated. The method is validated by comparing numerical results with that available in the literature.
机译:提出了一种基于状态空间的微分求积的新方法,用于一般叠合梁的自由振动。通过使用微分求积技术沿轴向离散状态空间公式,在离散点建立了新的状态方程。应用最终条件并利用矩阵理论推导了一般解。考虑到顶面和底面的边界条件,然后制定了控制一般叠层梁自由振动的频率方程。通过将数值结果与文献中的结果进行比较来验证该方法。

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