磁流变阻尼器对齿轮系统减振降噪实验研究

发布时间：2018-01-11 03:31

本文关键词：磁流变阻尼器对齿轮系统减振降噪实验研究　出处：《机械科学与技术》2017年07期 　论文类型：期刊论文

【摘要】：针对齿轮箱在运行中振动噪声较大的问题,提出一种将磁流变阻尼器用于齿轮传动系统的振动噪声控制的方法。搭建了齿轮减振降噪实验台,通过对轴承座和转轴的振动、以及齿轮噪声声压级的监测,实验研究了磁流变阻尼器对齿轮系统的减振降噪特性。结果表明,磁流变阻尼器能有效抑制齿轮传动系统的振动与噪声,轴承座振动加速度有效值及振动烈度的幅值降幅在50%左右,转轴轴振峰峰值降幅达55%;各频率的噪声声压级均有8 d B左右的降低。阻尼器能抑制啮合频率及其高次谐波、转频及其高次谐波等各频率下的振动噪声,实现宽频减振;且能有效保证齿轮传动系统在较宽的转速范围内平稳运行。
[Abstract]:In order to solve the problem that the vibration and noise of the gearbox is very large, a method of applying Mr damper to control the vibration and noise of gear transmission system is put forward, and the experimental platform of gear vibration reduction and noise reduction is built. Based on the vibration of bearing seat and shaft, and the monitoring of noise level of gear, the characteristics of reducing vibration and noise of gear system by magnetorheological damper are studied experimentally. The magnetorheological damper can effectively suppress the vibration and noise of the gear transmission system. The amplitude of the effective value of vibration acceleration and vibration intensity of the bearing block is reduced by about 50%, and the peak value of the shaft vibration peak decreases by 55. The noise pressure level of each frequency is reduced by about 8 dB. The damper can suppress the vibration noise of meshing frequency and its high harmonic, turn frequency and its high harmonic frequency, and realize broadband vibration reduction. And can effectively ensure that the gear transmission system in a wide range of speed smooth operation.
【作者单位】：北京化工大学机电工程学院;
【基金】：国家重点基础研究发展计划项目(973项目)(2012CB026000) 北京市重点学科项目资助
【分类号】：TH132.41
【正文快照】： 齿轮传动系统是机械传动中较为常见的传动形式,具有承载能力大、可靠性高等优点。齿轮系统运转时若振动过大容易出现故障,造成重大事故[1];而且齿轮噪声的频率一般处于200~5 000 Hz之间,人耳对这一频率范围的噪声尤为敏感[2]。因此,研究齿轮振动噪声的控制方法具有十分重要的

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