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The requirement to the response time and dynamic behaviors of a standard impulse resistive divider is very strict. Main influence factor contributes to the measurement error of the divider is caused by stray capacitance to the earth. This paper calculated the stray capacitance and distribution capacitance parameters of the divider's high voltage arm with finite element method (FEM) and boundary element...
In this paper, the topology optimization design of two-material micro compliant mechanism that allows for treating local stress constraint is investigated. A mathematical model is constructed in which the mechanical advantage of the mechanism is posed as objective function while displacement constraint, material constraint and stress constraint are considered simultaneously. The element free Galerkin...
Plastic profiles produced by extrusion die are cooled down and calibrated by calibrators, so it is very important to properly design the cooling system in calibrator for the profile quality. Based on the finite element method (FEM) and the finite difference method (FDM), the numerical simulation of the cooling process is realized for plastic profile within calibrator. The simultaneous shape and topology...
Plastic profiles produced by extrusion die are cooled down and calibrated by calibrators, so it is very important to properly design the cooling system in calibrator for the profile quality. In this paper, considering the cooling channels' location, size, number and the calibrator's material distribution simultaneously, the optimization design of heterogeneous calibrator cooling system is investigated...
The three-phase voltage compensation type active superconducting fault current limiter (SFCL) is composed of three air-core superconducting transformers and a three-phase four-wire PWM converter. The primary winding of the air-core superconducting transformer is in series with AC main circuit, and the second winding is connected with the PWM converter. The electromagnetic condition in the transformer...
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