نتایج جستجو برای: speed maglev train
تعداد نتایج: 245792 فیلتر نتایج به سال:
The maglev system is a technology that uses the repulsive force between magnets to float or levitate an object vehicle. Maglev trains use electromagnets counter gravitational of object, so can in air. With this technology, resulting loss workpiece and base be eliminated. used train Electromagnetic Suspension (EMS). research began by modeling form state space. Furthermore, stability model has be...
As the next-generation high-speed transportation system, low vacuum tube maglev system combines with a certain degree of train, which can realize operation under aerodynamic resistance and noise mode. In order to study interior characteristics train in tube, computational model external flow field was established, established using statistical energy analysis method; then were studied. The rese...
With rapid development of urban rail transit, maglev trains, benefiting from its comfortable, energy-saving and environmentally friendly merits, have gradually entered people's horizons. In this paper, aiming at improving the aerodynamic performance an train, optimization design has been performed. An improved two-point infill criterion adopted to construct cross-validated Kriging model. Meanwh...
The strength design of the high-speed maglev train lacks specific methods, and analysis mainly refers to standards traditional wheel-rail technology, which cannot meet requirements development. An efficient structure evaluation method for trains is proposed based on Shanghai system. combined operation conditions are first constructed by linear superposition combination single conditions. Throug...
In this paper, the dynamical behavior of single magnet suspension system of maglev train considering the elastic guide-way is researched through HOPF bifurcation theory. With three states feedback variables (gap, current, velocity), the HOPF bifurcation conditions and corresponding vibration frequency of the coupled system is presented under different flexible guideway conditions, that is, the ...
According to tradition, permanent maglev cannot achieve stable equilibrium. The authors have developed, to the contrary, two stable permanent maglev impeller blood pumps. The first pump is an axially driven uni-ventricular assist pump, in which the rotor with impeller is radially supported by two passive magnetic bearings, but has one point contact with the stator axially at standstill. As the ...
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