Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Changsong Zheng"'
Publikováno v:
Jixie chuandong, Vol 46, Pp 146-155 (2022)
Based on an improved variational mode decomposition（VMD） algorithm，a novel gear fitting fault diagnosis method is proposed to overcome the difficulties in extracting the features of gear surface faults. The number of components for VMD is deter
Externí odkaz:
https://doaj.org/article/b514940f3ceb4e7e893c34525efdd50c
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
The guided wave technique is applied to slope stability monitoring to overcome the high attenuation characteristics of acoustic emission propagation in rock and soil materials. The shear tests of “guided wave meter” (GWM) with different deformati
Externí odkaz:
https://doaj.org/article/542625e1002e4d24a5584eb3a63a40af
Publikováno v:
IEEE Access, Vol 7, Pp 44087-44096 (2019)
This paper proposes a new systematic method for assessing system material wear to build a system degradation model and estimate residual technical life. Selected metal wear debris from lubricating oil, which contains information about the lubricant c
Externí odkaz:
https://doaj.org/article/c662f81192504f5298b453e3bca3f9d5
Publikováno v:
IEEE Access, Vol 7, Pp 92110-92118 (2019)
The regular replacement of lubricating oil plays a key role in improving machine reliability and reducing unexpected failures of an oil lubricated system. This paper proposes a condition-based maintenance problem with selected oil field data to deter
Externí odkaz:
https://doaj.org/article/0095506aa06041fb8e28929cd629721b
Publikováno v:
Advances in Mechanical Engineering, Vol 12 (2020)
The concentration of wear debris in used lubricating oil is generally observed from spectral oil analysis. The element concentration data are one of the commonly used oil field data for degradation evaluation of power-shift steering transmission. How
Externí odkaz:
https://doaj.org/article/c8075fbfbae9454aaf7f3542983da4ac
Publikováno v:
Sensors, Vol 21, Iss 24, p 8499 (2021)
The strength of cemented paste backfill (CPB) directly affects mining safety and progress. At present, in-situ backfill strength is obtained by conducting uniaxial compression tests on backfill core samples. At the same time, it is time-consuming, an
Externí odkaz:
https://doaj.org/article/165b18b6d0c942a08ebf71dab1f38f56
Publikováno v:
Advances in Mechanical Engineering, Vol 10 (2018)
The concentration of micron-size particles in used oil is generally obtained by atomic emission spectrometry. These accurate results can be considered as the most important index for real-time reliability evaluation including failure prediction and r
Externí odkaz:
https://doaj.org/article/6cd101f724114e6bbea6ca5d0304e344
Publikováno v:
Sensors, Vol 19, Iss 14, p 3162 (2019)
The electromagnetic wear particle detector has been widely studied due to its prospective applications in various fields. In order to meet the requirements of the high-precision wear particle detector, a comprehensive method of improving the sensitiv
Externí odkaz:
https://doaj.org/article/8dbcc90d0e2246a08da34d3081c6ef8e
Publikováno v:
Sensors, Vol 18, Iss 12, p 4144 (2018)
The electromagnetic wear particles detection sensor has been widely studied due to its ability to monitor the wear status of equipment in real time. To precisely estimate the change of the magnetic energy of the sensor coil caused by the wear particl
Externí odkaz:
https://doaj.org/article/be3f2aab7fbb44969a9cdbf6e39a8d78
Publikováno v:
Advances in Mechanical Engineering, Vol 7 (2015)
In this article, a degradation assessment model has been proposed for electro-hydraulic shift valve in power-shift steering transmission. Our work is motivated by the failure mechanism of abrasive wear with a mathematic model. Abrasive wear will cons
Externí odkaz:
https://doaj.org/article/e9f304d1e77246e9959ff69f67604816