| 转子系统阻尼固有频率算法中数值溢出问题的研究 |
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| 引用本文： | 张才稳 瞿红春. 转子系统阻尼固有频率算法中数值溢出问题的研究[J]. 振动、测试与诊断, 1998, 18(3): 206-210 |
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| 作者姓名： | 张才稳 瞿红春 |
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| 作者单位： | 东南大学国家火电机组振动工程研究中心 |
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| 摘 要： | 对基于Ｒｉｃｃａｔｉ传递矩阵法和Ｍｕｒｐｈｙ－Ｖａｎｃｅ法的转子系统的阻尼固有频率的传递矩阵－多项式计算法中的数值溢出问题作了分析研究，提出了一种代换ｐ＝ｇｑ，通过这种代换，使上述计算方法中的数值溢出问题得了解决。文中对一台２００ＭＷ汽轮机转子轴承系统的阻尼固有频率作了计算，计算结果证实，这种代换在数学上是严格的，对数值溢出问题的解决是有效的。
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| 关 键 词： | 转子轴承系统 阻尼固有频率 计算方法 |
Research on the Problem of Overflow in Calculating the Damped Critical Speeds of Rotor Bearing Systems |
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| Zhang Caiwen Qu Hongchun Lu Songyuan. Research on the Problem of Overflow in Calculating the Damped Critical Speeds of Rotor Bearing Systems[J]. Journal of Vibration,Measurement & Diagnosis, 1998, 18(3): 206-210 |
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| Authors: | Zhang Caiwen Qu Hongchun Lu Songyuan |
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| Abstract: | The problem of overflow in calculating the damped critical speeds of rotorbearing systems is analyzed and a substitution of p=gq is presented,upon which the problem is solved. By this means, the damped critical speeds of a steam turbine are calculated. Results show that the substitution is strict in mathematics and effective in solving the problem. |
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| Keywords: | rotor bearing systems damping natural frequency computational methods |
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