Zobrazeno 1 - 10
of 303
pro vyhledávání: '"Zhengjia He"'
Publikováno v:
Sensors, Vol 15, Iss 10, Pp 26997-27020 (2015)
The demountable disk-drum aero-engine rotor is an important piece of equipment that greatly impacts the safe operation of aircraft. However, assembly looseness or crack fault has led to several unscheduled breakdowns and serious accidents. Thus, cond
Externí odkaz:
https://doaj.org/article/445631583ee04f79ae52115b0e141dc6
Publikováno v:
Sensors, Vol 14, Iss 5, Pp 7625-7646 (2014)
This paper investigates one eigenvalue decomposition-based source number estimation method, and three information-based source number estimation methods, namely the Akaike Information Criterion (AIC), Minimum Description Length (MDL) and Bayesian Inf
Externí odkaz:
https://doaj.org/article/ad363d12577240698201d90db26a5b88
Publikováno v:
Sensors, Vol 13, Iss 7, Pp 8679-8694 (2013)
Timely and accurate condition monitoring and fault diagnosis of rotating machinery are very important to maintain a high degree of availability, reliability and operational safety. This paper presents a novel intelligent method based on local mean de
Externí odkaz:
https://doaj.org/article/95ccd8e2a7e0445888ae4c1022228fb3
Publikováno v:
Sensors, Vol 13, Iss 4, Pp 4051-4066 (2013)
This article presents a numerical technique for computing the biaxial yield surface of polymer-matrix composites with a given microstructure. Generalized Method of Cells in combination with an Improved Bodner-Partom Viscoplastic model is used to comp
Externí odkaz:
https://doaj.org/article/837c1546da2e458da834fc4d04d518f3
Publikováno v:
Sensors, Vol 13, Iss 1, Pp 1183-1209 (2013)
Planetary gearboxes exhibit complicated dynamic responses which are more difficult to detect in vibration signals than fixed-axis gear trains because of the special gear transmission structures. Diverse advanced methods have been developed for this c
Externí odkaz:
https://doaj.org/article/b509b61c2395469aa4747d23103f79d0
Publikováno v:
Sensors, Vol 12, Iss 10, Pp 12964-12987 (2012)
The reliability of cutting tools is critical to machining precision and production efficiency. The conventional statistic-based reliability assessment method aims at providing a general and overall estimation of reliability for a large population of
Externí odkaz:
https://doaj.org/article/c2d4caab2fb4410d8363c7900fc68e1d
Publikováno v:
Sensors, Vol 12, Iss 8, Pp 10109-10135 (2012)
Performance degradation assessment based on condition monitoring plays an important role in ensuring reliable operation of equipment, reducing production downtime and saving maintenance costs, yet performance degradation has strong fuzziness, and the
Externí odkaz:
https://doaj.org/article/bbf77604a7ce48c5aa24465d1312266d
Publikováno v:
Sensors, Vol 12, Iss 7, Pp 8732-8754 (2012)
Bearing defects are one of the most important mechanical sources for vibration and noise generation in machine tool spindles. In this study, an integrated finite element (FE) model is proposed to predict the vibration responses of a spindle bearing s
Externí odkaz:
https://doaj.org/article/a4c8e4861ba644998da6ff8b9bb70156
Publikováno v:
Sensors, Vol 12, Iss 4, Pp 4986-5004 (2012)
In general, mechanical equipment such as cars, airplanes, and machine tools all operate with constant frequency characteristics. These constant working characteristics should be controlled if the dynamic performance of the equipment demands improveme
Externí odkaz:
https://doaj.org/article/95ccd16975de4996823194f1cba26701
Publikováno v:
Sensors, Vol 12, Iss 2, Pp 2005-2017 (2012)
Studies on fault detection and diagnosis of planetary gearboxes are quite limited compared with those of fixed-axis gearboxes. Different from fixed-axis gearboxes, planetary gearboxes exhibit unique behaviors, which invalidate fault diagnosis methods
Externí odkaz:
https://doaj.org/article/d66f22d15a244f40ab4241fec1e3f1e5