航天推进技术研究院主办
[1]周云端,杨孟博,马兴.摇摆软管低温疲劳试验关键技术研究[J].火箭推进,2017,43(04):80-83.
ZHOU Yunduan,YANG Mengbo,MA Xing.Research on key technology for low-temperature fatigue test of swing-bellows[J].Journal of Rocket Propulsion,2017,43(04):80-83.
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ZHOU Yunduan,YANG Mengbo,MA Xing.Research on key technology for low-temperature fatigue test of swing-bellows[J].Journal of Rocket Propulsion,2017,43(04):80-83.
摇摆软管低温疲劳试验关键技术研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
43
期数:
2017年04期
页码:
80-83
栏目:
测控与实验
出版日期:
2017-10-01
- Title:
- Research on key technology for low-temperature fatigue test of swing-bellows
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- 为有效考核液体火箭发动机的工作可靠性，需要通过地面试验验证摇摆软管低温疲劳特性。摇摆软管低温疲劳试验系统承担试验时涉及的摇摆环境模拟、低温压力环境模拟、轴压平衡等关键技术。摇摆驱动分系统利用水平放置的2个液压伺服油缸作为驱动单元驱动十字轴带动摇摆软管摆动，模拟摇摆软管的安装边界及摇摆工况。低温压力供应分系统向摇摆软管内腔输送一定压力的液氮，模拟摇摆软管低温以及内压环境。内压平衡子系统通过设置在摇摆软管内的轴压平衡装置平衡内腔压力产生的轴向载荷，避免在内腔压力作用下伸长。某型氧化剂摇摆软管低温疲劳试验结果表明：摇摆软管低温疲劳试验系统能够实现摇摆软管双向摇摆和单向摇摆等疲劳试验工况，试验环境和边界条件与摇摆软管实际工作状态基本一致，试验参数满足要求。
- Abstract:
- It is necessary for low-temperature fatigue test to examine and verify fatigue characteristic and reliability of swing-bellows which feed LO2 from rocket's propellant tank to rocket engine. This test system involves several key technologies including simulation of swing conditions, simulation of low-temperature environments and internal pressure, and balance of axial load. The swing-driven subsystem can drive the universal joint pin to swing the swing-bellows by two hydraulic servo cylinders, and simulate the fixing boundary and swing conditions of the swing-bellows. The internal pressure subsystem under low-temperature can feed LN2 into the swing-bellows and simulate working environment. The axial load balance subsystem can balance axial load which is produced by LN2 at work through a balance device fixed in swing-bellows. The test results indicate that the test system is reasonable, the boundary condition of swing bellows on low-temperature fatigue test system is the same as that on rocket engine, and the test parameters meet the system requirement.
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备注/Memo
收稿日期：2016-03-27；修回日期：2016-05-14 基金项目：航天支撑技术项目（617010403） 作者简介：周云端（1976—），男，高级工程师，研究领域为液体火箭发动机力学环境研究
更新日期/Last Update:
1900-01-01