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[1]罗巧军,褚宝鑫,须 村.氢涡轮泵次同步振动问题的试验研究[J].火箭推进,2014,40(05):14-19.
　LUO Qiao-jun,CHU Bao-xin,XU Cun.Experimental research for sub-synchronous vibration problems of hydrogen turbopump[J].Journal of Rocket Propulsion,2014,40(05):14-19.
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氢涡轮泵次同步振动问题的试验研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 40 期数: 2014年05期 页码: 14-19 栏目: 研究与设计 出版日期: 2014-10-28
Title:
Experimental research for sub-synchronous vibration problems of hydrogen turbopump
作者:
罗巧军; 褚宝鑫; 须 村
北京航天动力研究所，北京 100076
Author(s):
LUO Qiao-jun;  CHU Bao-xin;  XU Cun
Beijing Aerospace Propulsion Institute, Beijing 100076, China
关键词:
液氢液氧发动机; 氢涡轮泵; 转子稳定性
分类号:
V434.21-34
文献标志码:
A
摘要:
某型氢氧发动机氢涡轮泵采用了超二阶临界转速工作的柔性转子，为了解决氢涡轮泵研制中发生的次同步振动问题，采用氢涡轮泵空转试验的研究方法，通过布置在涡轮泵机组不同位置的位移和加速度传感器，获取转子的工作信息，对轴系预紧力、密封动环安装位置、轴系相关零件的配合间隙、金属阻尼器等影响因素进行了研究和试验。试验结果表明，增加轴系预紧力对抑制异常频率的出现有较为明显的作用；密封动环的安装位置与轴承的距离越远，越容易激发出异常振动频率；适当增加轴套与轴的配合间隙可减小轴系的内摩擦，进而提高轴系稳定性裕度；金属橡胶阻尼器的采用对抑制异常振动有明显效果。
Abstract:
A supercritical flexible rotor is applied in the hydrogen turbopump of a LOX/LH2 rocket engine. To solve the sub-synchronous vibration problems occured during the hydrogen turbopump development, turbopump idling test is conducted in this study. The operating information of the rotor is obtained through the displacement sensors and acceleration sensors arranged in the turbopump. Studies and tests are conducted on influence factors, such as the pre-load on the shaft, location of the seal rotating ring, clearance between components, metal damper, and etc. From test results, it is well acknowledged that the increase of the pre-load is very useful on suppressing the abnormal frequency; the further the seal rotating ring is from the bearing, the easier the emersion of the abnormal vibration frequency; the proper increase of the clearance between the sleeve and the shaft can reduce the internal friction, and hence increase the stability of the system; the application of metal-

参考文献/References:

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[2] 张小龙, 何洪庆. 涡轮泵转子次同步进动的机理[J]. 推进技术, 1999, 20(1)：56-60.
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备注/Memo

收稿日期：2014-03-26；修回日期：2014-05-17 基金项目：中国航天科技集团公司支撑项目（2011JY01）

更新日期/Last Update: 1900-01-01