轴承实测波纹度的动力学建模与振动特性分析方法
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摘要
针对基于实测波纹度来预测轴承振动特性的研究方法较少的问题,提出了一种基于插值重采样的轴承实测波纹度动力学建模方法。以NU307E型圆柱滚子轴承为例,建立轴承波纹度的动力学模型,通过对轴承外圈、内圈和滚子的实测波纹度数据进行插值重采样,获得波纹度离散序列,并将其耦合到振动模型,建立轴承实测波纹度动力学模型进行仿真分析。最后进行了试验,验证了建模方法的正确性。
There is quite scarce study on prediction method for vibration characteristics of bearings based on measured waviness, a method is proposed for dynamics modeling of measured waviness of bearings based on interpolation resampling. Taking cylindrical roller bearings NU307 E as examples, the dynamics model is established for waviness of the bearings. The interpolation resampling is carried out for measured waviness data of outer rings, inner rings and rollers, the discrete sequence of waviness is obtained and coupled to vibration model. The dynamics model for measured waviness of the bearings is established for simulation analysis. Finally, the correctness of modeling method is illustrated through experimental verification.
There is quite scarce study on prediction method for vibration characteristics of bearings based on measured waviness, a method is proposed for dynamics modeling of measured waviness of bearings based on interpolation resampling. Taking cylindrical roller bearings NU307 E as examples, the dynamics model is established for waviness of the bearings. The interpolation resampling is carried out for measured waviness data of outer rings, inner rings and rollers, the discrete sequence of waviness is obtained and coupled to vibration model. The dynamics model for measured waviness of the bearings is established for simulation analysis. Finally, the correctness of modeling method is illustrated through experimental verification.
引文
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[4] AJTURK N.The effects of waviness on vibrations associated with ball bearings[J].American Society of Mechanical Engineers Journal of Tribology,1999,121(4):667-677.
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[8] 顾晓辉,杨绍普,刘永强,等.表面波纹度对滚动轴承-转子系统非线性振动的影响[J].振动与冲击,2014,33(8):109-114.
[9] 张文平,吴云鹏.基于表面特征的滚动轴承振动模型研究[J].哈尔滨工程大学学报,2007,28(5):528-531.
[10] 冈本纯三.球轴承的设计计算[M].黄志强,译.北京:机械工业出版社,2003:10.
[2] 张耀强,陈建军,邓四二,等.考虑表面波纹度的滚动轴承-转子系统非线性动力特性[J].航空动力学报,2008,23(9):1731-1736.
[3] 邵建敏,王伟.表面波纹度对球轴承振动影响的模拟分析[J].郑州工学院学报,1994,15(3):67-72.
[4] AJTURK N.The effects of waviness on vibrations associated with ball bearings[J].American Society of Mechanical Engineers Journal of Tribology,1999,121(4):667-677.
[5] ONO K,OKADA Y.Analysis of ball bearing vibrations caused by outer race waviness[J].Journal of Vibration & Acoustics,1998,120(4):901-908.
[6] GAFSSON O,OLOF G,TIBOR T.Study of the vibration characteristics of bearings[R].Sweden:No.AL63L023.SKF INDUSTRIES INC PHILADELPHIA PA,1963.
[7] 吴云鹏,张文平.带有波纹度的球轴承振动特性[J].大庆石油学院学报,2007,31(3):80-83.
[8] 顾晓辉,杨绍普,刘永强,等.表面波纹度对滚动轴承-转子系统非线性振动的影响[J].振动与冲击,2014,33(8):109-114.
[9] 张文平,吴云鹏.基于表面特征的滚动轴承振动模型研究[J].哈尔滨工程大学学报,2007,28(5):528-531.
[10] 冈本纯三.球轴承的设计计算[M].黄志强,译.北京:机械工业出版社,2003:10.