中国计量大学学报2017，Vol.28Issue(2)：169-175,7.DOI:10.3969/j.issn.2096-2835.2017.02.006
燃料电池车用超高速空压机临界转速分析与提高措施
Analysis and improvement of rotor dynamics for super high-speedair compressors applied in fuel cell vehicles
摘要
Abstract
Higher pressure gas fuel produced by the air compressor can augment the power density and performance of fuel cell engines, but the rotor-bearing system of air compressors may have practical problems of resonance and loss of stability, or even broken shaft damages.The critical speed of the rotor-bearing system was analyzed and the main relevant factors on the air compressor`s critical speed were studied such as bearing stiffness, bearing position, and the mass of the rotation shaft.Numerical simulation results show that both increasing bearing stiffness and decreasing bearing span and its mass can augment the critical speed of air compressors.关键词
燃料电池空压机/高速转子-轴承系统/转子动力学/临界转速Key words
fuel cell air compressor/super speed rotor-bearing system/rotor dynamics/critical speed分类
机械制造引用本文复制引用
詹剑,张智明,张娟楠,李昌昊,倪玥..燃料电池车用超高速空压机临界转速分析与提高措施[J].中国计量大学学报,2017,28(2):169-175,7.基金项目
国家自然科学基金资助项目(No.51405344),国家科技支撑计划资助项目(No.2015BAG06B01),中央高校博士点基金资助项目(No.20130072120041),47期留学回国人员科研启动基金,中央高校业务费(No.1600219247),公路养护装备国家工程实验室开放基金资助项目(No.310825151129). （No.51405344）
