نتایج جستجو برای: electric winding
تعداد نتایج: 148789 فیلتر نتایج به سال:
In this paper, two dual three-phase winding configurations are compared based on the Toyota Prius 2010 interior permanent magnet (IPM) machine. It is found that configuration with single-layer full-pitched (SF) windings can improve average torque and reduce ripple in constant range. The double-layer short-pitched (DS) has better performance a power electromagnetic performances of when one set e...
With the advent of smaller, less expensive, and generally more effective computers, simulation models and simulation environments have become increasingly popular tools for solving engineering problems. This paper describes an effort to link a genetic algorithm with WITNESS, a modeling program developed by AT&T and Istel, in order to optimize a model of a manufacturing process called filament w...
The voltage control is performed by changing the turns ratio. This is done by provision of taps in the winding. The volts per turn available in large transformers is quite high and hence a change of even one turn on the LV side represents a large percentage change in the voltage. Also the LV currents are normally too large to take out the tapping from the windings. LV winding being the inner wi...
We study supermembranes in the light-cone gauge in eleven flat dimensions with compact directions. The membrane states are subject to only the central charges associated with closed two-branes, which, in this case, are generated by the winding itself. We present arguments why this winding leaves the mass spectrum continuous. The lower bound on the mass spectrum is set by the winding number and ...
Asynchronous motors are used in many agricultural industries. Agricultural production is a with high humidity. As noted above, one of the main reasons for failure electric installations during prolonged downtime insulation breakdown due to its dampness. Moistening winding will degrade dielectric performance insulation. If motor often switched on and total operating time per day at least 4 - 6 h...
To extract critical points from a (3D time-resolved) blood-flow velocity field, we employ a 3D winding number algorithm. Experiments are performed to asses the behavior of the winding number algorithm. First is experimented with artificial data sets, and the robustness of the winding number algorithm is tested, along with the indexation algorithm and the clustering algorithm. Subsequently, some...
We find the exact winding number distribution of Riemann-Liouville fractional Brownian motion for large times in two dimensions using the propagator of a free particle. The distribution is similar to the Brownian motion case and it is of Cauchy type. In addition we find the winding number distribution of fractal time process, i.e., time fractional Fokker-Planck equation, in the presence of fini...
leads and windings due t o eddy cu r ren t s induced in the conductors by t h e al ternat ing magnetic field. The leads and windings a r e connected in series, therefore, t he high-frequency resistance of t he transformer R t is An accurate, analyt ical method is proposed f o r calculating the lead and winding high-frequency resistance of complex transformer constructions. High-frequency resist...
A process model was developed for the fabrication of closed shape composite structures such as thick-wall cylinders, with the emphasis on fiber bundle deformation and its effect on the process physics. A continuum mechanics model for fiber bundle deformation in the composite manufacturing processes was proposed. Based on this model, the winding and consolidation processes for thick wall cylindr...
Electric drive is widely used in automotive practice. Its basis an electric traction motor (TM), which, compared with internal combustion engine (ICE), has such advantages as high efficiency, overload capacity, a wide range of speed control, and the possibility torque direct transmission to wheels. The main requirements for are efficiency over entire load range, ease small weight dimensions, re...
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