نتایج جستجو برای: speed maglev train
تعداد نتایج: 245792 فیلتر نتایج به سال:
Purpose. The purpose of this work is the formation conceptual approaches to construction an effective integrated system simultaneous synchronized control movement and suspension a maglev vehicle – magnetoplane. Methodology. paper uses technique for with mutually coordinated application both levitation methods, electromagnetic electrodynamic, through individual energy supply each track coil. Fin...
With speed increasing in high-speed trains, due to limitations of other types of brakes, aerodynamic brake has become an important braking method. In this task to make better use of brake’s panel different configurations are examined and the best panel shape which provides the reasonable drag coefficient is introduced. The results of simulations are carried out with the computational fluid dyna...
In this paper a multiobjective optimal design method of interior permanent magnet synchronous motor ( IPMSM) for traction applications so as to maximize average torque and to minimize torque ripple has been presented. Based on train motion equations and physical properties of train, desired specifications such as steady state speed, rated output power, acceleration time and rated speed of tract...
Magnetic levitation (MagLev) enables rapid and non-destructive quality control of plastic parts. The feasibility of MagLev as a method to: i) rapidly assess injection-molded plastic parts for defects during process optimization, ii) monitor the degradation of plastics after exposure to harsh environmental conditions, and iii) detect counterfeit polymers by density is demonstrated.
Abstract EMS maglev train uses the active control system to maintain levitation stability, time delay is widespread in system. However, existing dynamics studies rarely consider effect of delay, so these analysis results cannot directly guide engineering design. This paper starts from a theoretical stability single electromagnet obtain critical value for delay. Then model gradually extended com...
The equilibrium position of active maglev motorized spindle had great influence on the industrial processing accuracy, in order to improve the performance of active maglev motorized spindle and processing accuracy, a new control method and control device of active maglev was put forward based on H∞ mixed sensitivity. Firstly, a mathematical model was established among the electromagnetic force ...
22 23 Implementation of highway-rail grade crossing warning systems, educational programs and 24 research on crossings have all contributed to a steady reduction in the risk to highway users of 25 grade crossings over the past several decades. Much less attention has been given to 26 understanding the effect of grade crossings on train safety and risk. Collisions at highway-rail 27 grade crossi...
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