重庆大学学报2025，Vol.48Issue(1)：1-9,9.DOI:10.11835/j.issn.1000-582X.2023.222
航空无人机高速长轴转子系统动力学分析
Dynamics analysis of high-speed long-shaft rotor system for aerial UAV
摘要
Abstract
This study addresses the vibration problems in high-speed long-shaft rotor system of an aerial UAV by developing a computational model that incorporates various forms of bearing support and damping.Using Ansys Workbench,the effects of bearing support forms and bearing damping on the critical speed of the rotor system are analyzed.Results indicate that the critical speed is significantly higher with rigid support than with flexible support.When rigid support is combined with bearing damping,the critical speed decreases with the increase of damping,and the influence of bearing damping decreases in higher-order modes.Additionally,the harmonic responses of the system are consistent across different positions,with the response amplitude increasing as the unbalanced load rises.Furthermore,the response amplitude shows an upward trend with increased damping.关键词
高速长轴转子系统/轴承支撑形式/轴承阻尼/临界转速/不平衡量/谐响应Key words
high-speed long-shaft rotor system/bearing support/bearing damping/critical speed/unbalanced load/harmonic response分类
机械工程引用本文复制引用
郑传威,宋朝省,吴安阳,王耀禄..航空无人机高速长轴转子系统动力学分析[J].重庆大学学报,2025,48(1):1-9,9.基金项目
重庆市杰出青年科学基金资助项目(CSTB2022NSCQ-JQX0026).Supported by Chongqing Funds for Distinguished Young Youths(CSTB2022NSCQ-JQX0026). （CSTB2022NSCQ-JQX0026）
