Dynamics Modeling and Analysis on Vibration Characteristics of Roll Grinder with Pillow Looseness

Abstract

Abstract:

To study the effects of pillow looseness on dynamic behavior of a roll grinder, a dynamics model of the grinder was proposed based on the two time delays model. Then the dynamic responses of the grinding system were solved. Investigations on the vibration responses and the envelope spectrums of the grinding system with or without pillow looseness were carried out numerically and experimentally. A good agreement between the simulation results and experimental results validates the effectiveness and accuracy of the proposed model.

Key words: roll grinder, pillow looseness, dynamics model, vibration characteristic

摘要：

由于轧辊磨床托瓦松动故障的动力学行为直接影响磨削工作状态，故基于磨床双时延模型，建立了轧辊磨床托瓦松动的动力学模型，研究了托瓦松动时磨削系统的动力学特性。通过对正常工况和不同间隙托瓦松动工况的仿真分析，获得了相应的振动响应和包络谱特征，仿真结果与试验数据较一致，验证了轧辊磨床托瓦松动的动力学模型的有效性和准确性。

关键词: 轧辊磨床, 托瓦松动, 动力学模型, 振动特性

CLC Number:

TG58

Ding Yan, Shao Yimin, Yuan Yilin, Wang Shengjun. Dynamics Modeling and Analysis on Vibration Characteristics of Roll Grinder with Pillow Looseness[J]. China Mechanical Engineering, 2014, 25(21): 2848-2852,2859.

丁岩, 邵毅敏, 袁意林, 王盛军. 轧辊磨床托瓦松动的动力学建模及振动特性分析[J]. 中国机械工程, 2014, 25(21): 2848-2852,2859.

References

[1]Thompson R A. On the Double Regenerative Stability of a Grinder：the Mathematical Analysis of Chatter Growth[J]. ASME Journal of Engineering for Industry，1986，108(2)：83-92.
[2]Tonshoff H K，Peters J，Lnasaki Is，et al. Modelling and Simulation of Grinding Processes[J]. CIRP Annals-Manufacturing Technology，1992，41(2)：677-688.
[3]Yang Fulun，Zhang Bi，Wang Jiexin. The Effect of Grinding Machine Stiffness on Surface Integrity of Silicon Nitride[J]. Journal of Manufacturing Science and Engineering，2001，123(4)：591-600.
[4]Govekac E，Baud A，GradiSek J. A New Method for Chatter Detection in Grinding[J]. CIRP Annals-Manufacturing Technology，2002，51(1)：267-270.
[5]Fofana M S. Effect of Regenerative Process on the Sample Stability of a Multiple Delay Differential Equation[J]. Chaos，Solitons and Fractals，2002，14(2)：301-309.
[6]Yuan Lihong，Jrvenp V-M，Keskinen E，et al. Simulation of Roll Grinding System Dynamics with Rotor Equations and Speed Control[J]. Communications in Nonlinear Science and Numerical Simulation，2002，7(3)：95-106.
[7]Liu Zhaoheng，Payre G. Stability Analysis of Doubly Regenerative Cylindrical Grinding Process[J]. Journal of Sound and Vibration，2007，301(3)：950-962.
[8]崔中，文桂林，陈桂平，等. 高速磨床整机动态特性研究[J]. 中国机械工程，2010，21(7)： 782-787.
Cui Zhong，Wen Guilin，Chen Guiping，et al. Whole Machine Dynamic Characteristic Analysis of High Speed Grinder[J]. China Mechanical Engineering，2010，21(7)：782-787.
[9]Chung Kwok-Wai，Liu Zhaoheng. Nonlinear Analysis of Chatter Bibration in a Cylindrical Transverse Grinding Process with Two Time Delays Using a Nonlinear Time Transformation Method[J]. Nonlinear Dynamics，2011，66(4)：441-456.
[10]陈心爽，袁耀良. 材料力学[M]. 上海：同济大学出版社, 1996.

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