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Electric vehicles are increasingly being adopted due to environmental awareness and competitive technical performance and reducing prices. Their research and development has sometimes relied on the use of standard driving cycles. However, these cycles cannot reproduce the variations of traffic flow in real world. That is why in this paper we develop a software tool able to analyze real-life driving...
By translationally moving a magnetic source above a conductive plate guideway both levitation and drag forces are created. Unfortunately, the electrodynamic drag force can be quite high [1]. Kratz studied a double Halbach array topology, such as shown in Fig 1 [1], and used a simple curve fitting approximation to model the forces. Kratz experimentally showed that a significant reduction in drag force...
Ray-tracing techniques are commonly used for calculating the paths taken by electromagnetic waves in a medium that has an associated refractive index, such as the earth's ionospheric plasma. Ray equations derived from Hamilton's equation are usually used to determine ray paths and ray tubes defined by tracing adjacent rays separately. There are advantages in describing ray tubes in terms of a main...
This paper proposed a concise nonlinear fin roll control derived from integrator backstepping with nonlinear damping term. The resulting backstepping-based controller consists two parts, first part is a PID controller which agrees very well with the concise robust close-loop gain shaping algorithm (CGSA). While the second part is a nonlinear compensation which can be simplified by leaving the high...
Prediction of deformation of foundation pit by means of conventional method such as mechanics analysis or numerical method often has a large error because the deformation process of foundation pit is a highly complicated nonlinear evolution process. A novel method based on Gaussian process (GP) machine learning is proposed for solving the problem of deformation prediction of foundation pit. GP is...
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