Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Yongyao Luo"'
Autor:
Zhongyu Mao, Ran Tao, Funan Chen, Huili Bi, Jingwei Cao, Yongyao Luo, Honggang Fan, Zhengwei Wang
Publikováno v:
Journal of Marine Science and Engineering, Vol 9, Iss 2, p 158 (2021)
During the starting up of the pump mode in pump turbines, the axial hydraulic force acting on the runner would develop with the guide vane opening. It causes deformation and stress on the support bracket, main shaft and runner, which influence the op
Externí odkaz:
https://doaj.org/article/d73f869544874880a55c9be1a35ef878
Publikováno v:
Energies, Vol 12, Iss 10, p 2013 (2019)
Dredge pumps are usually operated at part-load conditions, in which the low-solidity centrifugal impeller could experience large internal energy dissipation, related to flow separation and vortices. In this study, SST k-ω and SAS-SST turbulence mode
Externí odkaz:
https://doaj.org/article/84f3efce9858421e98408ce01080f6d1
Publikováno v:
Energies, Vol 12, Iss 8, p 1523 (2019)
After long-term operation, the material loss due to slurry erosion often leads to significant changes in the impeller geometry. This change can, in turn, affect the flow characteristics and the erosion mechanism in a centrifugal pump. To investigate
Externí odkaz:
https://doaj.org/article/07a7259c80094f6a9cb09e168bfa27c6
Publikováno v:
Energies, Vol 12, Iss 5, p 939 (2019)
Oscillating water column (OWC) axial impulse turbines permit the conversion of wave energy into electrical power. Unlike other hydropower units with a mature and well established technology, such turbines have been recently developed, there are still
Externí odkaz:
https://doaj.org/article/a194a17046ba494692e5f39c6d02f27d
Publikováno v:
International Journal of Rotating Machinery, Vol 2016 (2016)
Clearance flows in the sidewall gaps of centrifugal pumps are unsteady as well as main flows in the volute casing and impeller, which may cause vibration and noise, and the corresponding pressure fluctuations are related to the axial clearance size.
Externí odkaz:
https://doaj.org/article/50288b0fb2f448438b6cfcf18862ac48
Publikováno v:
Energies, Vol 11, Iss 9, p 2320 (2018)
When discussing potential resonances in hydraulic turbine runners, cavitation effects are usually neglected. Nevertheless, recent studies have experimentally proved, that large cavitation volumes in the proximity of flexible simple structures, such a
Externí odkaz:
https://doaj.org/article/d40cc2649c234335ad82854db9b5767c
Publikováno v:
Sensors, Vol 18, Iss 7, p 2251 (2018)
Submerged systems are found in many engineering, biological, and medicinal applications. For such systems, due to the particular environmental conditions and working medium, the research on the mechanical and structural properties at every scale (fro
Externí odkaz:
https://doaj.org/article/93ab93a6cdaf48e9a17c8d485d33ed44
Publikováno v:
Energies, Vol 10, Iss 6, p 787 (2017)
This paper presents a multi-objective optimization procedure for bidirectional bulb turbine runners which is completed using ANSYS Workbench. The optimization procedure is able to check many more geometries with less manual work. In the procedure, th
Externí odkaz:
https://doaj.org/article/f3eeed02bbed4f81baa28c7f8b5487c1
Publikováno v:
Advances in Mechanical Engineering, Vol 6 (2014)
During turbocharger rotor speed-up tests, the sensor installed in the compressor greatly affects the rotor dynamics. The effect of the floating bearing stiffness coefficient on the critical rotational speeds and the shaft dynamic response due to the
Externí odkaz:
https://doaj.org/article/c7e2f222693f498f91810bffb45c8a2d
Publikováno v:
Advances in Mechanical Engineering, Vol 5 (2013)
The rotor bracket is a key component of the generator rotor with cracks in the rotor bracket leading to rubbing between the rotor and stator, which threatens safe operation of the unit. The rotor rim is so complicated that the equivalent radial stiff
Externí odkaz:
https://doaj.org/article/f5b97b36319949aa9f11eafb9ff1e17d