| 转子密封系统反旋流抑振的数值模拟 |
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| 引用本文： | 何立东.转子密封系统反旋流抑振的数值模拟[J].航空动力学报,1999,14(3):293-296. |
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| 作者姓名： | 何立东 |
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| 作者单位： | 中国船舶工业总公司第七O三研究所 |
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| 基金项目： | 国家“九五”国防预研资助 |
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| 摘 要： | 把研究物体在流场中振动时的受力和运动特性的非线性振子模型，推广到转子密封系统非线性动力学问题的研究中，突出了小间隙中非定常流对转子运动的影响，分析了反旋流抑制转子不平衡响应和密封流体激振的机理。对某转子密封系统的计算及其与实验数据的对比，证实了本文方法的有效性，为在工程实际中推广反旋流技术提供了一些理论依据。
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| 关 键 词： | 转子 密封 非线性振动 数据模拟 |
| 收稿时间： | 8/1/1998 12:00:00 AM |
| 修稿时间： | 1998/11/1 0:00:00 |
NUMERICAL SIMULATION OF ANTI-SWIRL ARRANGEMENTS FOR SUPPRESSING ROTOR/SEAL INSTABILITY |
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| He Lidong.NUMERICAL SIMULATION OF ANTI-SWIRL ARRANGEMENTS FOR SUPPRESSING ROTOR/SEAL INSTABILITY[J].Journal of Aerospace Power,1999,14(3):293-296. |
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| Authors: | He Lidong |
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| Abstract: | A nonlinear oscillator model,which is usually used to study the dynamic characteristics of structures in flow,has been applied to the nonlinear dynamic characteristics of rotor/seal system.Emphasis is put on the effects of the nonlinear unsteady flow in the small clearance on the rotor dynamic characteristics.The mechanism of anti-swirl arrangements for suppressing rotor/seal instability is considered.The comparison between the theoretical and experimental results of a rotor/seal system is in a reasonable agreement and shows that this method provides a theoretical basis for application of anti-swirl technique to engineering practices. |
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| Keywords: | Rotors Sealing Nonlinear vibration Numerical simulation |
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