...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mechanical systems and signal processing >A new procedure for using envelope analysis for rolling element bearing diagnostics in variable operating conditions
【24h】

A new procedure for using envelope analysis for rolling element bearing diagnostics in variable operating conditions

机译：在变化的工况下使用包络线分析进行滚动轴承诊断的新程序

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the field of rolling element bearing diagnostics envelope analysis, and in particular the squared envelope spectrum, have gained in the last years a leading role among the different digital signal processing techniques. The original constraint of constant operating speed has been relaxed thanks to the combination of this technique with the computed order tracking, able to resample signals at constant angular increments. In this way, the field of application of squared envelope spectrum has been extended to cases in which small speed fluctuations occur, maintaining the effectiveness and efficiency that characterize this successful technique. However, the constraint on speed has to be removed completely, making envelope analysis suitable also for speed and load transients, to implement an algorithm valid for all the industrial application. In fact, in many applications, the coincidence of high bearing loads, and therefore high diagnostic capability, with acceleration-deceleration phases represents a further incentive in this direction. This paper is aimed at providing and testing a procedure for the application of envelope analysis to speed transients. The effect of load variation on the proposed technique will be also qualitatively addressed.
机译：在滚动轴承轴承诊断领域，包络分析，尤其是平方包络谱，在最近几年中已在不同的数字信号处理技术中占据主导地位。由于此技术与计算出的阶次跟踪相结合，从而能够以恒定的角度增量对信号进行重新采样，从而放松了恒定运行速度的原始限制。这样，平方包络谱的应用领域已扩展到发生小速度波动的情况，从而保持了表征该成功技术的有效性和效率。但是，必须完全消除对速度的限制，从而使包络分析也适用于速度和负载瞬变，以实现适用于所有工业应用的算法。实际上，在许多应用中，高轴承负载以及因此具有较高的诊断能力以及加速/减速阶段的巧合是该方向的进一步诱因。本文旨在提供和测试一种应用包络分析来加速瞬变的程序。负载变化对提出的技术的影响也将得到定性解决。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号