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Modeling of arc force in plasma arc welding
Transactions of Tianjin University, 2008A three-dimensional mathematical model for the transferred-type argon arc was developed to describe arc force on the anode surface. The software ANSYS was employed to solve the model. The model includes a part of torch and tungsten electrode to achieve more reasonable results. The arc temperature and flow fields were derived.
Zhonglin Gao +3 more
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SSRN Electronic Journal, 2010
Many Instructional Technology Models (Instructional Design being the Technology which forms the cybernetic CMS of the field of Learning & Development) are adopted and followed in both Paradigmatic vis-a-vis Platform Independent Training in the present Training Scenario.
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Many Instructional Technology Models (Instructional Design being the Technology which forms the cybernetic CMS of the field of Learning & Development) are adopted and followed in both Paradigmatic vis-a-vis Platform Independent Training in the present Training Scenario.
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Modeling of the Electric Arc Behavior of the Electric Arc Furnace
2013During the electric arc furnace operation appear disturbances, which can affect the other equipments that are connected to the same power network. So it is necessary to develop models for the electric arc which characterizes the electric arc behavior in order to identify methods and solutions through which the disturbances that appear in the power ...
Manuela Panoiu +2 more
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Linking a physical arc model with a black box arc model and verification
IEEE Transactions on Dielectrics and Electrical Insulation, 2011The arc behavior in the current zero region is critical in the case of very steep rising TRV, such as after clearing a short-line fault. Therefore, intensive and abundant short-line fault tests (L90) of a 245 kV SF6 circuit breaker were performed at the KEMA High Power Laboratory.
Ahmethodzic, A. +4 more
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On the Modeling of Long Arc in Still Air and Arc Resistance Calculation
IEEE Transactions on Power Delivery, 2004An important macroscopic arc parameter, describing its complex nature is the arc resistance. It can be easily calculated by using the well-known Warrington formula. Authors investigated the results of Warrington's tests. By taking into account the conditions under which they are obtained (e.g., inaccurate measurement devices), it is unquestionable that
Terzija, Vladimir V. +1 more
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Simulation of the SF6 Arc Behavior by a Cylindrical Arc Model
IEEE Transactions on Power Apparatus and Systems, 1985The dependece of the arc characteristics on the background SF6 gas condition is studied in detail. High (ph) value of SF6 gas at a temperature of 2000 K plays an important role for the peculiar behaviors of the SF6 arcs. The simulation by the cylindrical arc model[1] shows that the temperature profile across the arc is steep in the current decreasing ...
T. Tanabe +3 more
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From a Circular-Arc Model to a Proper Circular-Arc Model
2008We are given a circular-arc graph, represented by a circular-arc model; our goal is to decide whether the graph is a proper circular-arc graph. We do so in time linear in the number of vertices of the graph, regardless of the number of edges which may be quadratic in the number of vertices. For every input graph, we either provide a proper circular-arc
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Three-Dimensional Modeling of Plasma Arc in Arc Welding
Heat Transfer, Volume 2, 2006Most previous three-dimensional modeling work in gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW) focuses on the weld pool. Almost all three-dimensional weld pool models are based on the two-dimensional axisymmetric Gaussian assumption of plasma arc pressure and heat flux.
G. Xu, H. L. Tsai
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Modeling and parameter identification of an electric arc for the arc furnace
2008 IEEE International Conference on Automation and Logistics, 2008Voltage flicker and harmonics are the types of power quality problems that are introduced to the power system as a result of arc furnacepsilas very large power input ratings. In order to propose solutions to minimize the adverse effects, developing an accurate electric arc model has a much needed task.
null Yan Wang +4 more
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2022
Development of a measure of belongingness, and testing an ARC model of belongingness in the ...
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Development of a measure of belongingness, and testing an ARC model of belongingness in the ...
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