考虑结构非线性的轴系传动随机振动响应分析
Analysis of Random Vibration Response of Shafting Transmission Considering Structural Nonlinearity
孟祥昊 1于坤鹏 1王志海1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,安徽合肥 230088
- 折叠
摘要
为了研究转轴结构中零件配合状态、间隙等非线性因素对其随机振动响应的影响,基于显式动力学分析,在时域内对转轴结构的随机振动响应进行了仿真.结果表明处于紧密配合状态的零件间振动传递更加平顺,响应幅值小于临界状态.当结构存在间隙时,其响应幅值随着间隙的增大而显著下降,但零件间的碰撞会导致结构高频段的响应增加,同时也会加剧零件的磨损.研究结论可以为结构的设计理念和选型方法提供参考.
Abstract
In order to study the influence of nonlinear factors such as fit state and clearance on the ran-dom vibration response of the shaft structure,its random vibration response is simulated in the time do-main based on explicit dynamics analysis.The results show that the vibration transmission between parts in the interference fit state is smoother than that in the critical state,which results in a smaller response amplitude.When clearance occurs between the parts,the response amplitude shall decrease significantly as the clearance widens.However,the collision between the parts will increase the high-frequency response of the structure,which may also intensify the wear of the parts.The conclusions can provide references for structural design concepts and selection methods.
关键词
随机振动/非线性/时域仿真Key words
random vibration/nonlinear/time domain simulation引用本文复制引用
基金项目
国防科工局基础科研项目(JCKY2021210B007)
国防科工局基础科研项目(JCKY2020210B007)
出版年
2024
国家科技期刊平台
NSTL
万方数据