| 机械结构结合面阻尼参数识别的研究 |
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| 引用本文： | 刘晓平,徐燕申,宋健伟,彭泽民. 机械结构结合面阻尼参数识别的研究[J]. 振动与冲击, 1995, 0(3) |
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| 作者姓名： | 刘晓平 徐燕申 宋健伟 彭泽民 |
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| 作者单位： | 北京邮电大学，天津大学机械系 |
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| 摘 要： | 本文提出基于正交性条件识别机械结构结合面接触阻尼参数的方法。该方法避免了机械结构系统动力学模型中刚度矩阵存在的误差对接触阻尼参数识别的不利影响，提高厂接触阻尼参数的识别精度。另外，本方法结合了实验模态分析技术和有限元法，使其具有工程实用价值，而已识别过程简便。算例证实了本方法的有效性。
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| 关 键 词： | 结合面，实验模态分析，有限元法 |
DAMPING IDENTIFICATION OF THE MECHANICAL STRUCTURAL JOINT SURFACE |
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| Liu Xiaoping. DAMPING IDENTIFICATION OF THE MECHANICAL STRUCTURAL JOINT SURFACE[J]. Journal of Vibration and Shock, 1995, 0(3) |
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| Authors: | Liu Xiaoping |
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| Affiliation: | Liu Xiaoping (Beijing University of Posts and Telecommunications)Xu Yanshen;Song Jianwei;Peng Zemin(Mechanical Engineering Department Tianjin University) |
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| Abstract: | A new method for identifying the damping in the mechanical structural joint surface is developed which is based on the orthologonality.With this method,the disadvantageous influence of the errors existing in the stiffness matrix of the structural system model to the results identified can be avoided, and the accuracy of damping identified is improved. Besides,the method can be used in practice via FEM cooperated with experimental modal analysis. A numerical example is presented to verify the method offered. |
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| Keywords: | joint surface experimental modal analysis finite element method |
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