超高速无油空压机转子动力学性能研究

朱晨虹, 孙云龙, 陈良, 吴广权, 占文锋

doi:10.3969/j.issn.1001-2222.2025.03.003

车用发动机 >

2025 , Vol. 0 >Issue 3: 16 - 21

DOI: https://doi.org/10.3969/j.issn.1001-2222.2025.03.003

超高速无油空压机转子动力学性能研究

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(广州汽车集团股份有限公司汽车工程研究院，广东广州 511434)

网络出版日期: 2025-06-26

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Rotor Dynamics Analysis of Ultra-High-Speed Oil-Free Air Compressor

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(Guangzhou Automobile Group Co.，Ltd.，Automotive Engineering Institute,Guangzhou 511434,China)

Online published: 2025-06-26

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摘要

燃料电池发动机用超高速无油空压机的转子动力学分析是该零件的核心课题之一，对空压机轴系进行准确的理论设计及仿真是缩短验证周期、降低开发成本的关键环节。通过对一款燃料电池空压机的轴系进行合理的设计，并对其临界转速、不平衡响应以及稳定性进行分析，同时对样件进行试验跟踪，对比了面向工程化的dyrobes软件仿真结果和工程试验的结果，论证该款空压机轴系设计的合理性，并研究其性能规律。本研究对燃料电池空压机等同类型超高速旋转机械轴系的设计及计算具有一定的指导意义。

关键词： 燃料电池; 超高速电机; 空压机; 空气轴承; 转子动力学; 临界转速

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朱晨虹, 孙云龙, 陈良, 吴广权, 占文锋 . 超高速无油空压机转子动力学性能研究[J]. 车用发动机, 2025 , 0(3) : 16 -21 . DOI: 10.3969/j.issn.1001-2222.2025.03.003

Abstract

Rotor dynamics analysis is critical for developing ultra-high-speed oil-free air compressors for fuel cell applications. Accurate theoretical design and simulation of the rotor shafting system is the key to shortening test verification cycle and reducing development costs. Through rational shafting design of a fuel cell air compressor, followed by analysis of critical speeds, unbalanced response and stability, coupled with prototype testing and validation, the results of the simulation of engineering-oriented dyrobes software and the results of the engineering tests were compared, and the rationality of the compressor shaft system was verified and the performance law was studied. This study offered valuable guidance for the design and computational analysis of shafting systems in ultra-high-speed rotary machines such as fuel cell air compressors.

Key words： fuel cell; ultra-high-speed motor; air compressor; oil-free air bearing; rotor dynamics; critical speed

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