Zobrazeno 1 - 10
of 121
pro vyhledávání: '"envelope demodulation"'
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 17, Iss 6, Pp 111-117 (2022)
ObjectiveIn order to overcome the disadvantages of the traditional ensemble empirical mode decomposition (EEMD) method in selecting parameters (integration time and white noise amplitude coefficient) based on experience, and reduce the cost of calcul
Externí odkaz:
https://doaj.org/article/ef301fa0d68848c6be0c7a8b589f7f64
Publikováno v:
IEEE Access, Vol 8, Pp 202260-202273 (2020)
In the process of coal mine production, the fault of the mechanical transmission system of the shearer ranging arm directly affects safety production. Therefore, it is very important to achieve the accurate fault location of the shearer ranging arm.
Externí odkaz:
https://doaj.org/article/b424ac3b3d4042ecb18a825251320e0d
Akademický článek
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Akademický článek
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Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 14, Iss 7, Pp JAMDSM0104-JAMDSM0104 (2020)
Time-frequency analysis can effectively reveal the fault characteristics of rolling bearings under variable speed conditions. However, the traditional time-frequency analysis method cannot meet the requirements of anti-noise ability and time-frequenc
Externí odkaz:
https://doaj.org/article/bfe5bafc8570442e8fa2cb0430b8640f
Early Fault Diagnosis of Gear Box based on Variational Mode Decomposition and Fast Spectral Kurtosis
Autor:
Zhao Wei
Publikováno v:
Jixie chuandong, Vol 42, Pp 143-149 (2018)
Aiming at the gear fault early sign signal is weak and the noise influence is serious,it is difficult to extract the fault characteristic frequency and band-pass filter parameters are not easy to determine the problem,a fault diagnosis method is prop
Externí odkaz:
https://doaj.org/article/e491c28d293945f981c6832b8d3129f4
Autor:
Caspers, Fritz
Due to ongoing discussions since many years about the claimed nonexistence of second harmonic generation (or passiveintermodulation of second order) on biological tissue I have decided to publish now this simple videotaken around 2021. This may berel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8de6cac8c327c4782dab1a2e1332532b
Publikováno v:
Applied Sciences, Vol 11, Iss 14, p 6262 (2021)
Envelope demodulation of vibration signals is surely one of the most successful methods of analysis for highlighting diagnostic information of rolling element bearings incipient faults. From a mathematical perspective, the selection of a proper demod
Externí odkaz:
https://doaj.org/article/31eabf8cc6cc45d9b73a9eca6ee0a6fa
Publikováno v:
Jixie chuandong, Vol 41, Pp 73-76 (2017)
The rolling bearing is one of the most important and easiest faulty components in rotating machinery. If the performance of rolling bearing can be monitored and evaluated in real-time,the maintenance strategy can be completed in time. The autoregress
Externí odkaz:
https://doaj.org/article/e5206dde34124832a37a17925fb4de91
Publikováno v:
Jixie chuandong, Vol 41, Pp 124-129 (2017)
Aiming at the weak abnormal sound of the new transmission products in the specific speed range of gear,the nonlinear of the dynamic parameter sample entropy is used to extract the operating characteristics of the transmission under different gears. T
Externí odkaz:
https://doaj.org/article/4d052e1257884a35b4e471b3a4bcdbb7