| 吴斌.用动态缩聚法求解结构的特征值问题[J].计算力学学报,1998,15(3):363~368 |
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| 用动态缩聚法求解结构的特征值问题 |
| Dynamics condensation method for structuraleigenvalue problem |
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| DOI：10.7511/jslx19983057 |
| 中文关键词: 运动方程 特征值问题 动态缩聚法 |
| 英文关键词:dynamic condensation method,structural eigenproperties, |
| 基金项目: |
| 吴斌 |
| 中国航天总公司７６２７所 |
| 摘要点击次数: 1123 |
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| 中文摘要: |
| 基于逐级逼近思想提出了一种新的动态缩聚法。保留和压缩的自由度通过一个缩聚矩阵联系，最初的缩聚矩阵由系统子矩阵定义。用循环的方法逐级逼近特征值及特征向量。计算实例验证了上述方法的可行性。 |
| 英文摘要: |
| An important dynamic condensation method is presented for accurate calculation of struc- tural eigenproperties. The kept and reduced of freedom in the approach are related through a condensation matrix that is uesd to form a condensation eigenvalue problem. The eigenproperties calculated in an iteration are utilized to update the condensation matrix until a desired convergence in the eigenvalues is achieved. Numerical examples are presented to show the applicability of the proposed method. |
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