Comparison between shock pulse method and vibration analysis methods on early fault detection of rolling element bearing

  • سال انتشار: 1400
  • محل انتشار: دوفصلنامه مبانی نظری و کاربردی علم آکوستیک و ارتعاشات، دوره: 7، شماره: 2
  • کد COI اختصاصی: JR_TAVA-7-2_004
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 256
دانلود فایل این مقاله

نویسندگان

Mehdi Behzad

Sharif University

Ali Davoodabadi

School of Mech. Eng., Sharif University of Technology, Tehran, Iran

Hesam Addin Arghand

Department of Mech. Eng., University of Zanjan, Zanjan, Iran

Amirmasoud Kiakojouri

National Centre for Advanced Tribology, University of Southampton, Southampton, UK

چکیده

In this paper, the vibration analysis methods and shock pulse method (SPM) are compared in order to detect the unhealthy condition as well as fault type in the early stages of rolling element bearing (REB) degradation. To analyze vibration signals, three weak signature detection methods based on continuous wavelet transform (CWT), empirical mode decomposition (EMD) and envelope technique are employed. A set of accelerated life tests on REBs was designed and performed in CM lab of Sharif university of technology. Seven tests were conducted and vibration signals, as well as shock pulse signals, were recorded regularly. The trend of vibration level and shock pulse level are compared for early detection of the unhealthy condition in REBs. In addition, the extracted spectrums from SPM, CWT, EMD, and envelope techniques are studied to detect bearing characteristics frequencies (BCFs) to diagnostics. Results show that SPM has better performance on early fault detection of REBs rather than vibration analysis techniques.

کلیدواژه ها

Rolling element bearing (REB), Condition monitoring (CM), Early fault detection, Vibration Analysis, Shock pulse method (SPM)

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.