Dynamic Characteristics of Laminated Structural Members

层合结构构件的动态特性

• 批准号: 02650318
• 负责人: MIKAMI Takashi
• 金额: $ 1.15万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02650318/
• 关键词: Laminated plate; Free vibration; Collocation method; Initial stress; Shear deformation; Antisymmetric angle-ply; Antisymmetric cross-ply; 積層板; 逆対称アングル・プライ積層板; 逆対称クロス・プライ積層板; 多層構造; 積層殻; 振動; 衝撃

Laminated structural members, such as plates and shells, are being increasingly used in structural applications. especially when light weight is essential. For the design of such structures subject to dynamic forces, it is of fundamental importance to clarify the vibration characteristics of the structures. In this study, the free vibrations of antisymmetric angle-ply and cross-ply laminated plates, having one pair of opposite edges simply supported, are investigated on the basis of the Yang, Norris, and Stavsky(YNS) theory. The principal conclusions of this study are summarized as follows :(1) An efficient computational procedure, based on the collocation method, has been proposed for the analysis of free vibration of laminated plates. The comparisons with other numerical solutions show that the method yields very good results. In addition, an analysis of the strain energy distributions can be used as an aid for the better understanding of the Vibration characteristics of the plates.(2) The effect of transverse shear deformation on the fundamental frequency is more pronounced for the plates with the remaining edges clamped.(3) The effect of coupling between bending and extension on the fundamental frequency is quite substantial.(4) The effect of initial stress on the fundamental frequency is greater for laminated plates than for homogeneous, isotropic plates of the same dimensions.

层压结构构件，例如板和壳，正在越来越多地用于结构应用中。特别是当重量轻时。为了设计受动态力的设计，阐明结构的振动特征至关重要。在这项研究中，根据Yang，Norris和Stavsky（YNS）理论研究了反对称角式和交叉层压板的自由振动，具有一对相反的边缘。这项研究的主要结论总结如下：（1）已经提出了基于搭配方法的有效计算程序，用于分析层压板的自由振动。与其他数值解决方案的比较表明，该方法得出的结果非常好。此外，对应变能分布的分析可以用作更好地理解板的振动特性。（2）横向剪切变形对基本频率的影响，对于剩余边缘夹紧的板的影响更为明显。（3）（3）弯曲和延伸频率对基础频率之间的效果较大，而基本频率对构件的效果更大。板而不是相同尺寸的均质的各向同性板。

项目成果

朴 勝振・芳村 仁・三上 隆: "多層板の振動・座屈解析" 土木学会第45回年次学術講演概要集. I. 260-261 (1990)

Katsujin Park、Jin Yoshimura 和 Takashi Mikami：“多层板的振动和屈曲分析”日本土木工程师学会第 45 届年度学术讲座摘要 I. 260-261 (1990)。

三上 隆: "衝撃荷重を受ける二層円筒殻の解析" 落石等による衝撃問題に関するシンポジウム講演論文集. 101-104 (1991)

三上隆：《受到冲击载荷作用的两层圆柱壳的分析》落石等冲击问题研讨会论文集101-104（1991）

三上 隆: "衝撃荷重を受ける二層円筒殻の解析" 土木学会北海道支部論文報告集. 47. 143-146 (1991)

Takashi Mikami：“承受冲击载荷的两层圆柱壳的分析”日本土木工程师学会北海道分会论文集 47. 143-146 (1991)。

芳村 仁,三上 隆,朴勝振: "逆対称アングル・プライ積層板の自由振動" 構造工学論文集. 37A. 911-919 (1991)

Hitoshi Yoshimura、Takashi Mikami 和 Sung-jin Park：“反对称角层板的自由振动”《结构工程杂志》37A 911-919 (1991)。

朴文浩・芳村仁・三上隆・朴勝振: "Free Vibrations and Strain Energy Analysis of Antisymmetric Cross-ply Laminted Plates" 大韓土木学会論文集. 11. 37-44 (1991)

Moon-ho Park、Hitoshi Yoshimura、Takashi Mikami 和 Sung-jin Park：“反对称交叉层合板的自由振动和应变能分析”韩国土木工程师学会会刊，11. 37-44 (1991)。