| 用微机绘图法识别振动系统的模态参数 |
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| 引用本文： | 赵金元. 用微机绘图法识别振动系统的模态参数[J]. 沈阳建筑工程学院学报(自然科学版), 1986, 0(2) |
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| 作者姓名： | 赵金元 |
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| 作者单位： | 沈阳建筑工程学院力学教研室 |
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| 基金项目： | 中国科学院资助课题“近代结构动力学在矿山机械中的应用”论文之一 |
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| 摘 要： | 本文利用微机绘图功能对已知理想系统的幅相频响特性及奈奎斯特(Ny-quist)图进行模态分析,并用理论公式的图形来检验试验模态分析中由实测数据进行参数识别的精确度.所用自编程序全部是在 Apple—Ⅱ微型机上实现的.
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| 关 键 词： | 机械导纳 阻尼系统 结构阻尼 模态分析 模态矩阵 |
Identification of Modal Parameter of the Oscillation System by Means of Plotting with Microcomputer |
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| Zhao Jinyan. Identification of Modal Parameter of the Oscillation System by Means of Plotting with Microcomputer[J]. Journal of Shenyang Archit Civil Eng Univ: Nat Sci, 1986, 0(2) |
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| Authors: | Zhao Jinyan |
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| Affiliation: | Zhao Jinyan |
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| Abstract: | In this paper by means of the diagram function of microcomputer, we put modal analysis on a knownideal system into practice in accor- dance with theoretical formula and with the help of the amplitudephase- frequency response characteristic and the Nyquist Diagram.Then, according to the graphes,acquired with these theoretical formulas, was examined the accuracy of parameter identification method carried out with the da tameasured actually.In addition,these graphes can also show the dynamical characteristic of the ideal modal vividly. |
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| Keywords: | Mechanical admittance damped system structural damping modal analysis modal matrix |
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