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考虑结构非线性的轴系传动随机振动响应分析

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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.
Analysis of Random Vibration Response of Shafting Transmission Considering Structural Nonlinearity
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.

random vibrationnonlineartime domain simulation

孟祥昊、于坤鹏、王志海

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中国电子科技集团公司第三十八研究所,安徽合肥 230088

随机振动 非线性 时域仿真

国防科工局基础科研项目国防科工局基础科研项目

JCKY2021210B007JCKY2020210B007

2024

机械与电子
中国机械工业联合会科技工作部 机械与电子杂志社

机械与电子

CSTPCD
影响因子:0.243
ISSN:1001-2257
年,卷(期):2024.42(6)
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