An exact spectral dynamic stiffness theory for composite plate-like structures with arbitrary non-uniform elastic supports, mass attachments and coupling constraints
An exact spectral dynamic stiffness theory for composite plate-like structures with arbitrary non-uniform elastic supports, mass attachments and coupling constraints
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DOI：
10.1016/j.compstruct.2016.01.074
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发表时间：
2016-05-10
影响因子：
6.3
通讯作者：
Banerjee, J. R.
中科院分区：
文献类型：
--
作者：
Liu, X.;Kassem, H. I.;Banerjee, J. R.
本文提出了一种精确的谱动刚度理论，适用于具有任意非均匀弹性支承、质量连接和弹性耦合约束的复合材料板和板组件。该理论处理上述支持，附件和约束在一个足够一般的，但准确的方式，它可以适用于各种SDS配方以及经典的动态刚度配方的模态和动态响应分析。该方法简洁，但可以很容易地应用到任何任意边界条件的复杂板状结构。它保留了最近开发的SDS方法的所有优点，该方法给出了精确的结果，具有良好的计算效率。用本理论计算的结果与已发表的结果进行了对比验证。为了证明理论的实用性，三个广泛的工程组合结构进行了研究。出于基准测试的目的，从当前理论计算的结果准确到最后引用的数字。(c)2016爱思唯尔有限公司版权所有
This paper presents an exact spectral dynamic stiffness (SDS) theory for composite plates and plate assemblies with arbitrary non-uniform elastic supports, mass attachments and elastic coupling constraints. The theory treats the above supports, attachments and constraints in a sufficiently general, but accurate manner, which can be applied to various SDS formulations as well as classical dynamic stiffness formulations for both modal and dynamic response analysis. The methodology is concise but can be easily applied to complex plate-like structures with any arbitrary boundary conditions. It retains all the advantages of a recently developed SDS method which gives exact results with excellent computation efficiency. The results computed by the present theory are validated against published results. In order to demonstrate the practical applicability of the theory, three wide ranging engineering composite structures are investigated. For benchmarking purposes, results computed from the current theory are accurate up to the last figure quoted. (c) 2016 Elsevier Ltd. All rights reserved.