| 介质取代(修改结构)动力特性的快速分析法 |
| |
| 引用本文： | 张德文,王龙生.介质取代(修改结构)动力特性的快速分析法[J].宇航学报,1987(2). |
| |
| 作者姓名： | 张德文 王龙生 |
| |
| 作者单位： | 北京强度环境研究所
(张德文)，北京强度环境研究所(王龙生) |
| |
| 摘 要： | 本文建立了一种适用于具有较大修改量、修改部位任意、原结构具有重～耦合*特征值的修改结构之特征对的快速分析法。该方法简单、可靠,它比现有的梯度法、摄动法、直接法优越。
|
| 关 键 词： | 充液壳体 共振试验 结构动力分析 试验结果 数值分析 |
A FAST ANALYTIC TECHNIQUE FOR DYNAMIC CHARACTERISTICS OF MODIFIED STRUCTURE |
| |
| Zhang Dewen Wang Longsheng.A FAST ANALYTIC TECHNIQUE FOR DYNAMIC CHARACTERISTICS OF MODIFIED STRUCTURE[J].Journal of Astronautics,1987(2). |
| |
| Authors: | Zhang Dewen Wang Longsheng |
| |
| Institution: | Beijing Institute of Strength and Envirenment |
| |
| Abstract: | In present paper, a fast analytic method of eigenpairs of the modified structure is developed. This method can be used for the modified structure, that may have larger modified quantity and is unlocally modified, and its original structure may have multiple eigenvalues and very closed eigenvalues. Present method is simple and effectiveness. Also, the method is compared with other sevaral techniques in principle and numerically. Examples show that fast method is better than the gradient method, the matrix perturbation technique as well as the direct method. |
| |
| Keywords: | Liquid filled shell Resonance test Dynamic structural analysis Test result Numerical analysis |
| 本文献已被 CNKI 等数据库收录！ |
