齿盘误差对扭振测量的影响及消除方法
The Effect of Gear Plate Error on Torsional Vibration Measurement and its Elimination Method
吴江渝 1黄文彬 1王利明1
作者信息
- 1. 重庆大学机械传动国家重点实验室,重庆 400044
- 折叠
摘要
传统扭振测试受齿盘加工和安装精度影响会产生测量误差,严重时会对测试结果产生影响.为此,提出了一种消除齿盘误差对扭振测量影响的方法.根据扭振测量原理优化了扭振提取算法,建立了误差机理模型,并推导了齿盘分度不均以及安装偏心导致的扭振测量误差;此外,分别提出了基于多周期时域同步平均的齿盘分度不均误差校正方法和基于高通滤波器的齿盘偏心误差校正方法;最后,通过仿真和实验验证了理论推导和误差校正方法的有效性,并将上述扭振提取算法和误差校正方法封装形成了LabVIEW软件包,实现了对旋转轴系扭振的准确实时测量.
Abstract
Torsional vibration testing is susceptible to measurement errors caused by gear machining and in-stallation inaccuracies,which can significantly impact the accuracy of test results.To address this issue,this paper presents a method for effectively eliminating the influence of gear errors on torsional vibration meas-urements.The proposed method improves the torsional vibration extraction algorithm based on the funda-mental principles of torsional vibration measurement.It also establishes an error mechanism model to ana-lyze the measurement errors resulting from uneven gear tooth spacing and installation eccentricity.Addition-ally,two error correction methods are introduced:one utilizes multi-cycle time-domain synchronous avera-ging to compensate for uneven gear tooth spacing errors,while the other employs high-pass filtering to cor-rect gear installation eccentricity errors.The validity of the theoretical derivations and the effectiveness of the error correction methods are verified through simulations and experiments.Finally,the developed tor-sional vibration extraction algorithm and error correction methods are integrated into a LabVIEW software package,enabling accurate and real-time measurement of torsional vibrations in rotating shaft systems.
关键词
扭振测量/齿盘分度不均/齿盘偏心/误差分析Key words
torsional vibration measurement/uneven of tooth disc/eccentricity of tooth disc/error analysis引用本文复制引用
基金项目
科技部重点研发计划项目(2021YFB2011400)
出版年
2024
NETL
NSTL
万方数据