Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Nader Sawalhi"'
Publikováno v:
Sensors, Vol 24, Iss 8, p 2593 (2024)
Detecting gear rim fatigue cracks using vibration signal analysis is often a challenging task, which typically requires a series of signal processing steps to detect and enhance fault features. This task becomes even harder in helicopter planetary ge
Externí odkaz:
https://doaj.org/article/13892a9c686a44f0bae53ae245dc2202
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
The main challenging area in the health monitoring of rolling element bearings is the quantification of the spall size using vibration data analysis. This is very crucial for maintenance planning and management decisions. In this article, we present
Externí odkaz:
https://doaj.org/article/ac358d6767404468b455ebee38b016ae
Publikováno v:
International Journal of Rotating Machinery, Vol 2012 (2012)
This study presents the numerical fluid-structure interaction (FSI) modelling of a vibrating turbine blade using the commercial software ANSYS-12.1. The study has two major aims: (i) discussion of the current state of the art of modelling FSI in gas
Externí odkaz:
https://doaj.org/article/096c606e8fc049d783ad96d119dca767
Autor:
Faramarz Djavanroodi, Nader Sawalhi
Publikováno v:
International Journal of Mechanical Engineering and Robotics Research. :935-939
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f61cf8f6b8b5f5519c97bccc9c507022
https://doi.org/10.18178/ijmerr.8.6.935-939
https://doi.org/10.18178/ijmerr.8.6.935-939
Publikováno v:
Applied Acoustics. 144:124-141
This paper sheds the light on vibration modeling and diagnosis of misalignment beyond traditional approaches. Firstly, the paper presents a detailed finite element and dynamic simulation model of a vibration test rig. The model includes the construct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::613cf206a5c33df90fd652ca36a4f827
https://doi.org/10.1016/j.apacoust.2017.07.022
https://doi.org/10.1016/j.apacoust.2017.07.022
Autor:
Nader Sawalhi
Publikováno v:
Journal of Vibroengineering, Vol 20, Iss 3, Pp 1322-1339 (2018)
With the increase complexity of bearings’ processing algorithms and the growing trend of using computationally demanding algorithms, it is advantageous to provide analysts with a simple to use and implement algorithm. In this spirit, this paper com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae3b81682145dd7b8a011dacf7ecf2b4
https://doi.org/10.21595/jve.2017.18254
https://doi.org/10.21595/jve.2017.18254
Publikováno v:
International Journal of Mechanical Engineering and Robotics Research. :65-68
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::187d3cc7e4e8e924756a62f5bfc700df
https://doi.org/10.18178/ijmerr.8.1.65-68
https://doi.org/10.18178/ijmerr.8.1.65-68
Autor:
Mohamed A.A. Ismail, Nader Sawalhi
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 59:149-154
Research efforts have increased to investigate the ability to quantify localised bearing faults, ie spalls. These efforts revolve around extending the useful service life of the bearing after the detection of spalls. A number of studies have investig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59f21b831e203c30509cd7f44c1e042f
https://doi.org/10.1784/insi.2017.59.3.149
https://doi.org/10.1784/insi.2017.59.3.149
Publikováno v:
ISA transactions. 101
For early detection of rolling element bearings (REBs) faults in contaminated signals, kurtosis-derived indices are involved in the filtration process prior to demodulation. However, they were found either sensitive to impulsive outliers or requiring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b07844d88c6f6b09cd20dacf690a5c9
https://pubmed.ncbi.nlm.nih.gov/31955946
https://pubmed.ncbi.nlm.nih.gov/31955946
Publikováno v:
Conference Proceedings of the Society for Experimental Mechanics Series ISBN: 9783319746920
Shaft misalignment is the most common fault in rotating machinery besides unbalance. A poorly aligned machine can cost a factory upward of 30–40% in machine down time, replacement parts, inventory, and energy consumption. Vibration analysis is prom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::972911d63a562aaa77c5a8212bb9a0c6
https://doi.org/10.1007/978-3-319-74693-7_20
https://doi.org/10.1007/978-3-319-74693-7_20
