Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Jing Shuangxi"'
Publikováno v:
Jixie qiangdu, Vol 42, Pp 464-468 (2020)
In order to study the dynamic characteristics and fatigue life of the plow bit-holede in the cutting process,according to the coal sample property and structure and motion parameters of plow,the random load of BH38/2 × 400 type coal plow bit was cal
Externí odkaz:
https://doaj.org/article/c4496b971206407bb36e1eca0810c69a
Publikováno v:
Gong-kuang zidonghua, Vol 45, Iss 5, Pp 46-50 (2019)
In order to study reliability of planetary reducer of shearer cutting unit under influence of multiple factors, taking the MG400/951-WD shearer as research object, the load curve of spiral drum is calculated according to force analysis of pick and me
Externí odkaz:
https://doaj.org/article/8ac0cea2b18546babc89e373e9c75f20
Publikováno v:
Gong-kuang zidonghua, Vol 45, Iss 3, Pp 23-28 (2019)
In order to study noise and vibration characteristics of shearer under complicated coal seam occurrence conditions, vibration and noise sources of shearer were analyzed , and conclusions were found: noise of shearer is formed by coupling of different
Externí odkaz:
https://doaj.org/article/edb9ca7f86e44f91b1112cac5b13d505
Publikováno v:
Jixie qiangdu, Vol 40, Pp 1037-1042 (2018)
The effective low frequency fault feature hidden in gearbox measured signal is very weak for the influence of high frequency vibration and strong noise,and considering source noise,the extraction effect of low frequency fault feature with constrained
Externí odkaz:
https://doaj.org/article/a9dc128f74a14c05afce7018ed100688
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 37 (2018)
In order to monitor the wind turbine gearbox running state effectively, a fault diagnosis method of wind turbine gearbox is put forward based on wavelet neural network. Taking a 1.5 MW wind turbine gearbox as the target of study, the frequency spectr
Externí odkaz:
https://doaj.org/article/cef6510343384780b7ef18082d8acab7
Publikováno v:
Jixie qiangdu, Vol 38, Pp 927-932 (2016)
When refiner gearbox has incipient failure,its vibration signal,with hidden impulse component veiled by strong background noise,is usually very weak,which results in difficultly of gear fault diagnosis. In this paper,the concept of M-shift correlated
Externí odkaz:
https://doaj.org/article/8b0f3510151f43fe8070775fce727cef
Publikováno v:
Jixie chuandong, Vol 40, Pp 142-145 (2016)
The vibration signal which reflecting the equipment fault feature often drowned in background noise when mechanical equipment occurring fault. The fault feature is very difficult to extract through frequency spectrum analysis. The translation invaria
Externí odkaz:
https://doaj.org/article/7c220f33f27a4aa7945b1bc1c97461b6
Publikováno v:
Jixie chuandong, Vol 40, Pp 125-128 (2016)
According to the modulation characteristic of fault signals of rolling bearings and the disadvantages of depending on the experience to select resonance high frequency band,an improved empirical mode decomposition（EMD） and spectrum kurtosis metho
Externí odkaz:
https://doaj.org/article/76ba08a7981c4f1b91324fc63b586abb
Publikováno v:
Jixie chuandong, Vol 39, Pp 189-192 (2015)
When rolling element bearing occurred incipient fault,its vibration signal from bearing seat is usually very weak,and the hidden impulse components may be masked by machine noise or background noise,making it difficult to extract the fault features b
Externí odkaz:
https://doaj.org/article/6406a02459cf4a0d966bafba0642233d
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.