نتایج جستجو برای: high speed train dynamic system
تعداد نتایج: 4282527 فیلتر نتایج به سال:
Abstract As the unique power entrance, pantograph–catenary electrical contact system maintains efficiency and reliability of transmission for high-speed train. Along with fast development railways all over world, some commercialized lines are built covering remote places under harsh environment, especially in China; these environmental elements including wind, sand, rain, thunder, ice snow need...
We propose a novel high-speed train communication using baseband cloud (C-HSTC) system framework for providing continuous broadband services to highly mobile users. This framework is featured with a new virtualized single cell design which mitigates the impact of conventional handover failures and guarantees continuous communication services. Through exploiting the baseband units (BBU) cloud an...
One of the strategies for reduction of energy consumption in railway systems is to execute efficient driving by presenting optimized speed profile considering running time, energy consumption and practical constraints. In this paper, by using real route data, an approach based on combination of Genetic and Particle swarm (GA-PSO) algorithms in order to optimize the fuel consumption is provided....
There are several factors causing fastening systems to deteriorate faster than the designed life. The high repetitive loads from a moving train being one of the main factors, track irregularities, design and installation defects of track components, non-uniform rail support stiffness, unevenness in the rail seat deterioration are some of the factors causing fastenings systems to deteriorate fas...
On account of the influence discontinuity CRTS II ballastless track slabs and discrete support pads on high-speed rail vehicle-ballastless system, a vibration analysis calculation model track-vehicle coupling system was established basis moving unit method. The dynamic response at different travel speeds with without consideration plate discontinuities investigated. effect random process steel ...
the evaluation and control of the trains induced vibrations needs even more attention in the case of underground tracks which passes near to monuments and historical sites. the rail corrugations which occur due to the wheels’ impulse loads during the operation period of underground railway tracks, usually amplify the ground borne noise and vibration. in the current study, the mentioned phenomen...
In this paper, we propose an entirely new strategy for dynamic manipulation of sheet-like flexible objects. As one example, we consider dynamic folding of a cloth by a highspeed robot system consisting of two high-speed multifingered hands mounted on two sliders and a high-speed vision system. First, the dynamic folding performed by a human subject is analyzed in order to extract the necessary ...
The interest in dynamic behavior of railway bridges has increased in recent years with the introduction of high speed trains. Higher speeds of the trains have resulted in larger and more complicated loads than earlier, producing significant dynamic effects. The dynamic aspects are of special interest and have often shown to be the governing factor in the structural design. Dynamic analysis of r...
Automatic Train Operation (ATO) is one of the most important functions for an advanced train control system in high-speed railway systems. Research on optimization methods for ATO has been done before it is implemented in a train control system. From a theoretical point of view, it can be formulated as one of the functions of multi-objective Optimal Control Theory. This paper presents a new mul...
As one of the important core components train running parts, wheel rail related force will directly affect vehicle performance and passenger comfort. Take a high-speed as research object, track coupling dynamic model is established. The influence polygon on vibration characteristics bogie system analyzed through simulation. results show that when wear occurs, effective value lateral acceleratio...
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