| 基于实测频响函数的子结构模态综合 |
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| 引用本文： | 吴家驹 张宇光. 基于实测频响函数的子结构模态综合[J]. 应用力学学报, 1992, 9(3): 36-43 |
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| 作者姓名： | 吴家驹 张宇光 |
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| 作者单位： | 北京强度与环境研究所(吴家驹)，北京强度与环境研究所(张宇光) |
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| 摘 要： | 本文以梁型结构串联布局为应用背景,研究了导纳综合法的试验模态分析.探讨了界面自由度的选取、刚体模态的处理、预测阻尼比的可能性以及影响预测精度的因素.物理梁试验结果表明,导纳综合法能精确地预测组装结构的频响函数和所需的模态参数.
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| 关 键 词： | 振动 模态综合 结构力学 子结构 |
Substructures Mode Synthesis Based Upon Measured Frequency Response Function |
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| Wu Jiaju Zhang Yuguang. Substructures Mode Synthesis Based Upon Measured Frequency Response Function[J]. Chinese Journal of Applied Mechanics, 1992, 9(3): 36-43 |
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| Authors: | Wu Jiaju Zhang Yuguang |
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| Affiliation: | Beijing Institute of Structural andl Environmental Engineering |
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| Abstract: | The experiment mode analysis by admittance synthesis method is investigated for the series connected beam-like structures. The definition of physically joined freedom and rigid mode, the availability of damping ratio identification and potential factors that affect the accuracy to be expected in component mode synthesis are discussed. The experimental results of beams indicate that the frequency response function and needed mode parameters of the assembled structure are predicted with accuracy. |
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| Keywords: | vibration mode testing mode synthesis |
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