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基于 3D 打印的轻量化静压空气轴承设计与 流体动力学性能优化
Design and Fluid DynamicsAnalysisof Air BearingsBased on 3D Printing
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- DOI:
- 作者:
- 王冬冬 1，郑刚 1，郑作赟 2，王琦 2，张喜辰 3，相敏 2，张鹏 2
WANG Dongdong1,ZHENG Gang1,ZHENG Zuoyun2,WANG Qi2,ZHANG Xichen3, XIANG Min2,ZHANG Peng2
- 作者单位:
- 1. 海军装备部，北京 100000；2. 西安欧中材料科技股份有限公司西安市 3D 打印用金属粉末材料工程技术研究中心， 陕西 西安 710018；3. 西安科技大学 机械工程学院，陕西 西安 710054
1. Naval Equipment Department, Beijing 100000,China; 2. Xi'an ERC of 3D Printing Metal Powder Material, Xi'an Sino-Euro Materials Technologies Co., Ltd., Xi'an 710018,China; 3. School of Mechanical Engineering, Xi'an University of Science and Technology, Xi'an 710054,China
- 关键词:
- 3D 打印；空气轴承；有限体积；气膜压力；静态特性
3D printing; air bearings; limited volume; gas film pressure; static characteristics
- 摘要:
- 航空发动机对轴承的轻量化与高承载能力提出迫切需求，传统静压空气轴承因制造工艺限制难以实现复杂流道结构。 为此，基于 3D 打印技术，通过拓扑优化设计了一种轻量化静压空气轴承，并利用 Fluent 流体动力学仿真软件对该轴承模型展开分析，旨在解决传统轴承质量大、气流分布不均等问题。 结果表明，供气气压和气膜的承载力呈正线性相关，提高供气气压可提升空气轴承的承载能力。 通过自由制造复杂流道与镂空结构，突破传统工艺瓶颈，为高精度气膜均匀性提供新途径。Traditional hydrostatic air bearings, which are constrained by manufacturing process limitations, have difficulty achieving complex flow channel structures. To meet the extremely lightweight requirements of aviation parts, a lightweight hydrostatic air bearing was designed through topology optimization on the basis of 3D printing technology. Additionally, Fluent computational fluid dynamics simulation software was used to analyse the bearing model, aiming to solve problems such as the heavy weight of traditional bearings and uneven air flow distribution. The results show that there is a positive linear correlation between the air supply pressure and the bearing capacity of the air film and that increasing the air supply pressure can increase the bearing capacity of the air bearing. This work provides a new method for further studying the performance and weight reduction work of aviation air bearings through relevant research.