重型机械Issue(3)：106-110,5.
某机载风扇疲劳寿命分析与减振研究
Fatigue life analysis and vibration reduction research of certain airborne fan
摘要
Abstract
Based on the material S-N curve and Miner linear damage accumulation theory,the fatigue life of a certain airborne fan casing was analyzed through joint simulation with ANSYS and nCode DesignLife.The fatigue result cloud map of the fan casing and the fatigue life of each node were obtained.The results show that the maximum fatigue damage location is at the connection between the reinforcing rib and the casing,which is consistent with the fracture location in actual working conditions,indicating that the simulation method can provide certain theoretical guidance for structural design.To solve the problem of fatigue fracture,a method of using high damping rubber material shock absorbers for vibration reduction installation is proposed.The re-simulation results show that vibration reduction installation is an effective method to improve the fatigue life of airborne fans.关键词
nCode DesignLife/S-N曲线/振动疲劳/寿命分析/减振Key words
nCode DesignLife/S-N curve/vibration fatigue/life analysis/vibration damping分类
机械制造引用本文复制引用
杨成玉,何楠,张晓曼,王婷,马靖..某机载风扇疲劳寿命分析与减振研究[J].重型机械,2024,(3):106-110,5.基金项目
辽宁省教育厅基本科研项目(LJKMZ20221991) （LJKMZ20221991）
沈阳科技学院科学研究项目(MS-2023-01) （MS-2023-01）
