Results 41 to 50 of about 1,644 (207)
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 Aiming at the problem that it is difficult to extract the characteristics of the draft tube pressure fluctuation signal under the background of strong noise, this study proposes a dual noise reduction method based on adaptive local iterative filtering (ALIF) and singular value decomposition (SVD).
Yan Ren +8 more
wiley +1 more source
A simulated annealing algorithm for multiobjective optimizations of electromagnetic devices [PDF]
, 2014 Author name used in this publication: S. L. HoAuthor name used in this publication: H. C.
Ho, SL, Ni, G, Wong, HCC, Yang, S
core +1 more source
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 In the shaft axis monitoring of hydrogenerating unit condition monitoring and fault diagnosis, the shaft orbit is intuitive and comprehensively reflects the unit operation state, and different shaft orbits correspond to different fault types, which can accurately indicate a system vibration fault.
Xinfeng Ge +10 more
wiley +1 more source
Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applications [PDF]
, 2006 There is a growing trend in the replacement of the babbit facing in thrust pad bearings with a composite polytetrafluoroethylene (PTFE) surface layer. The PTFE-faced bearings have been shown to allow a greater specific pressure, reduce thermal crowning ...
Drinkwater, B.W. +3 more
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Nonlinear Vibration Analysis of Rotor considering Cogging and Harmonic Effects
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 This paper aims to investigate nonlinear vibration characteristics of rotor system considering cogging and harmonic effects. Firstly, relative permeance with eccentric was established and then corrected by correction factor caused by the cogging effect.
Shanle Li +5 more
wiley +1 more source
The research of the thermal state of the umbrella type hydrogenerator by САЕ methods [PDF]
, 2019 В представленной работе рассмотрено исследование теплового состояния гидрогенератора зонтичного типа мощностью 60 МВт. Показана возможность определения граничных условий 3 рода, необходимых для определения термонапряженного состояния деталей и узлов ...
Коврига, Антон Евгеньевич +3 more
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Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 This paper investigates the effect of the field winding interturn short‐circuit (FWISC) position on the rotor vibration properties in turbo generators. Different from the previous studies which focused on the influence of the short‐circuit degree, this work pays much attention to the impact of the short‐circuit position on the rotor unbalanced magnetic
Xing-Hua Yuan +6 more
wiley +1 more source
Experimental and numerical investigation of hydro power generator ventilation [PDF]
, 2014 Improvements in ventilation and cooling offer means to run hydro power generators at higher power output and at varying operating conditions. The electromagnetic, frictional and windage losses generate heat.
Chernoray, Valery +2 more
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Energy harvesting from hydroelectric systems for remote sensors [PDF]
, 2016 Hydroelectric systems are well-known for large scale power generation. However, there are virtually no studies on energy harvesting with these systems to produce tens or hundreds of milliwatts.
Azevedo, Joaquim Amândio Rodrigues +1 more
core +2 more sources
Embedded intelligence for electrical network operation and control [PDF]
, 2011 Integrating multiple types of intelligent, mulitagent data analysis within a smart grid can pave the way for flexible, extensible, and robust solutions to power network ...
Catterson, Victoria +2 more
core +1 more source