| 液体火箭发动机涡轮泵转子弯扭耦合振动研究 |
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| 引用本文： | 窦唯,刘占生.液体火箭发动机涡轮泵转子弯扭耦合振动研究[J].火箭推进,2012,38(4):17-25. |
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| 作者姓名： | 窦唯 刘占生 |
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| 作者单位： | 1. 北京航天动力研究所,北京,100076
2. 哈尔滨工业大学,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家“863”项目（2009AA705313） |
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| 摘 要： | 为获得转子振动特性,针对液体火箭发动机涡轮泵转子系统建立了其在密封流体激振作用下的弯扭耦合动力学模型。通过数值仿真和试验研究了涡轮泵转子系统弯扭耦合振动的动力学特性,结果显示在密封流体激励作用下弯扭耦合振动的非线性特性显著。还研究了偏心距对涡轮泵转子系统弯扭耦合振动的影响。本研究可为液体火箭发动机涡轮泵转子的结构设计、诊断与维护提供可靠信息。
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| 关 键 词： | 液体火箭发动机 涡轮泵 转子系统 弯扭耦合 振动 |
Research on bend-twist coupling vibration of liquid rocket engine turbopump rotors |
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| DOU Wei,LIU Zhan-sheng.Research on bend-twist coupling vibration of liquid rocket engine turbopump rotors[J].Journal of Rocket Propulsion,2012,38(4):17-25. |
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| Authors: | DOU Wei LIU Zhan-sheng |
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| Institution: | 1. Beijing Aerospace Propulsion Institute, Beijing 100076, China; 2. Harbin Institute of Technology, Harbin 150001, China) |
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| Abstract: | A bend-twist coupling dynamics model for the liquid rocket engine turbopump rotor system was established under the effect of the sealed liquid vibration to achieve the vibration characteristics of the rotors. Through the numerical simulation and experiments, the dynamics characteristic of bend-twist coupling vibration is researched for rotors system of turbopump. A conclusion that the nonlinear characteristic of bend-twist coupling vibration is much more obvious under the sealed liquid exciting function was obtained. The effect of eccentricity on bend-twist coupling vibration of turbopump rotor system is analyzed. This research supplies the credible information for machinery design and diagnosis and mainte-nance of liquid rocket engine turbopump rotor system. |
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| Keywords: | liquid rocket engine turbopump rotor system bend-twist coupling vibration |
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