超导可倾瓦磁液复合轴承的动力学特性分析

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超导可倾瓦磁液复合轴承的动力学特性分析

更新时间：2025-07-09

- 超导可倾瓦磁液复合轴承的动力学特性分析
- Issue 11, Pages: 65-73(2020)
- 作者机构：
  
  1. 西安交通大学现代设计及转子轴承系统教育部重点实验室
  2. 西安航天动力研究所涡轮泵研究室
  3. 合肥工业大学机械工程学院摩擦学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： V43
- Published：2020
- 稿件说明：
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[J]. 2020, (11): 65-73.
DOI：

[J]. 2020, (11): 65-73. DOI：

摘要

针对我国新一代液体火箭涡轮泵高速、可重复使用的功能需求与现役滚动轴承直径与转速的乘积(DN值)难以提高之间的矛盾

提出了一种新型超导可倾瓦磁液复合轴承

能够实现磁液优势互补、启停磨损性能和高速振动稳定性综合较优

从而成倍地提高涡轮泵转速并延长其使用寿命。通过涡轮泵系统自带的低温介质

实现了超导磁力与动压液膜力的复合;基于磁通冻结镜像模型和雷诺方程

建立了考虑超导体场冷高度和低黏介质流态的磁液复合分析模型;对于磁场与流场之间的热效应、瓦摆效应和介磁效应的耦合关系

提出了解耦的分析方法;研究了不同设计参数对复合轴承轴心轨迹和动态最小膜厚的影响

揭示了复合轴承的非线性动力学规律。研究结果表明:最佳支点系数在62%～66%之间

可以显著改善轴承的服役性能;在0.04%～0.05%之间存在一个会使最小膜厚出现极小值的间隙比;增大长径比对轴承性能的改善最为明显

增大瓦包角对轴承性能的改善效果微弱;载荷作用在瓦块之间时

复合轴承具有更好的动态承载能力。可为抑制轴颈振动和提高复合轴承承载能力提供一些设计指导

对设计高可靠性火箭涡轮泵的轴系结构也具有一定的参考价值。

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{"db_type":"CJFDREF","db_name":"期刊","reference_articles":[{"unit":"西安交通大学学报","flag":"[J]","issue":"05","year":2020,"author":"王亚兵;刘洋洋;王报龙;祝长生;袁小阳","index":1,"title":"轴颈倾斜的水润滑橡胶艉轴承的静态特性"},{"unit":"摩擦学学报","flag":"[J]","issue":"05","year":2016,"author":"陈润霖;许吉敏;卫洋洋;袁小阳","index":2,"title":"超导磁力与静压液膜力复合轴承的静动特性分析"},{"unit":"火箭推进","flag":"[J]","issue":"06","year":2004,"author":"苗旭升,李斌,黄智勇","index":3,"title":"发动机涡轮泵流体动静压轴承应用分析"},{"unit":"火箭推进","flag":"[J]","issue":"04","year":2000,"author":"段增斌;谭永华;孙宏明","index":4,"title":"液体火箭发动机现状与发展"},{"unit":"Science Bulletin","flag":"[J]","issue":"16","year":1987,"author":"赵忠贤,陈立泉,杨乾声,黄玉珍,陈赓华,唐汝明,刘贵荣,倪永明,崔长庚,陈烈,王连忠,郭树权,李山林,毕建清,王昌庆","index":5,"title":"SUPERCONDUCTIVITY ABOVE LIQUID NITROGEN TEMPERATURE IN NEW OXIDE SYSTEMS"},{"unit":"Chinese Journal of Mechanical Engineering","flag":"[J]","issue":"02","year":2020,"author":"Jimin Xu;Changhuan Li;Xusheng Miao;Cuiping Zhang;Xiaoyang Yuan","index":6,"title":"An Overview of Bearing Candidates for the Next Generation of Reusable Liquid Rocket Turbopumps"}],"articles_count":6}

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