Results 71 to 80 of about 85,414 (206)
, 2014 We present here a detailed study of the influence of the transverse motion of the atoms in a free-fall gravimeter. By implementing Raman selection in the horizontal directions at the beginning of the atoms free fall, we characterize the effective ...
Cheng, Bing +5 more
core +3 more sources
Investigation of Motor Supply Signature Analysis to Detect Motor Resistance Imbalances [PDF]
, 2015 The trend to use inverter drives in industry is well established. It is desirable to monitor the condition of the motor/drive combination with the minimum of system intervention and at the same time retaining compatibility with the latest generation of ...
Ashari, Djoni +3 more
core
Известия высших учебных заведений. Поволжский регион:Технические наукиBackground. Residual unbalance is one of key quality characteristics for rotating parts (rotors). This value determines the upper allowable limit for the rotor rotational speed in specific supports.
I.I. Artemov +3 more
doaj +1 more source
Power quality complex estimation at alternating current traction substations
Nauka ta progres transportu, 2013 Purpose. At alternating current traction substations are used three-winding transformers. This scheme comes to significant costs from power quality disturbances at each supplier.
D.O. Bosiy
doaj
Intelligent system design for identification of unbalance and misalignment using Fuzzy Logic methods
Jurnal Ilmiah SINERGIVibration analysis identifies emerging vibration problems before they become unmanageable and cause unforeseen delays. This can be accomplished by monitoring engine vibration continuously or at specific intervals.
Dedik Romahadi +4 more
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Experiments and Identification of the Unbalance of Aerostatic Guideways on the Micro-Scale
Sensors, 2014 In order to diagnose the unbalance of aerostatic guideways, displacement and acceleration sensors were used to measure the vibration signals of the unbalance of the aerostatic guideways caused by the gas fluctuation. The frequency characteristics for the
Dongju Chen, Yanhua Bian, Jinwei Fan
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Communications, 2019 In many applications, where rotating machines of high power are used, high demands on reliability and safety are laid. Precise manufacturing procedures has to be kept even in case of machines retrofits when e.g. rotors are newly assembled.
Vladimir Kindl +3 more
doaj +1 more source
Active Power Distribution System between Phases of the Transformer’s Converter [PDF]
Problems of the Regional EnergeticsThe paper proposes the system that distributes automatically active power between phases at the secondary side of a traction transformer-based converter. The application area for this system is ac railways with big volumes of delivered items. The purpose
Morozov P.V., Morozov Yu.V.
doaj +1 more source
The developing field of integrated vehicle health management [PDF]
, 2013 The goals that are being set for aviation growth in the near future, combined with the growth in service provision, are unattainable without active health management of airplanes.
Jennions, Ian K.
core
A Prediction Model of Two-Sided Unbalance in the Multi-Stage Assembled Rotor of an Aero Engine
MachinesIn rotating machinery with a multi-stage assembled rotor, such as is found in aero engines, any unbalance present will undergo unknown changes at each stage when rotating the assembly phases of the rotor.
Lingling Song, Yue Chen
doaj +1 more source