| 轴承位置对涡轮泵转子系统稳定性的影响研究 |
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| 引用本文： | 窦唯,褚宝鑫.轴承位置对涡轮泵转子系统稳定性的影响研究[J].火箭推进,2013,39(3):58-66. |
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| 作者姓名： | 窦唯 褚宝鑫 |
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| 作者单位： | 北京航天动力研究所,北京,100076 |
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| 摘 要： | 针对低温液体火箭发动机涡轮泵转子非线性系统开展了轴承位置对稳定性的影响研究。建立了涡轮泵转子非线性系统的动力学模型,分别研究了理想安装时和非理想安装条件下泵端和涡轮端轴承位置变化对转子系统稳定性的影响,给出了失稳转速随轴向位置的变化规律,为液体火箭发动机涡轮泵转子系统结构设计、故障诊断与安装维护提供理论依据。
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| 关 键 词： | 液体火箭发动机涡轮泵 转子系统 轴承位置 系统动态稳定性 |
Effect of bearing position on dynamic stability of turbopump rotor system in liquid rocket engine |
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| DOU Wei
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CHU Bao-xin.Effect of bearing position on dynamic stability of turbopump rotor system in liquid rocket engine[J].Journal of Rocket Propulsion,2013,39(3):58-66. |
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| Authors: | DOU Wei CHU Bao-xin |
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| Institution: | (Beijing Aerospace Propulsion Institute,Beijing 100076,China) |
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| Abstract: | The dynamic stability research about bearing axial position is carried out for the turbine pump nonlinear rotor system of low temperature liquid rocket engine.The dynamics model of nonlinear rotor system is established.The effect of axial position change of both the bearing near the pump and the bearing near the turbine on the stability of the rotor system is respectively researched under conditions of ideal installation and nonideal installation with eccentricity.The variation of instability rotate speed with bearing axial position is given.In this paper,a theoretical foundation is provided for structure design,fault diagnosis,installation and maintenance of the turbine pump rotor system in liquid rocket engine. |
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| Keywords: | liquid rocket engine turbo-pump rotor system bearing position system dynamic stability |
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