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Based on 500kV power transformer, according to the mass-spring system model for the axial vibration of power transformer winding and its nonlinear characteristics, a calculation model is simplified, the modal simulation system of power transformer active part, which composes of core, windings, tensile plates and clamp frames is established, the natural frequencies and vibration modal in different...
Aimed at the effect of variable coefficients and the constant coefficients to the system, a quarter-car two degree freedom suspension vibration model is described, with the aid of matlab alternating senior programmable language, the algorithm is gained through function file, the simulation model of the road noise and the suspension system is obtained. Moreover, The one order standard sensitivity function...
The partner selection and optimization problem is an important area of virtual enterprise. The model of partner selection is analyzed in this paper. In a virtual enterprise, the whole task can be accomplished by the cooperation among those candidate partners. The optimal objective is to minimize the total cost and completing time. To improve the searching performance for particle swarm optimization...
In the traditional signal theory, the conversion formulas from the unilateral Laplace transform expression to the Fourier transform expression are classified according to the unilateral Laplace transform expressionpsilas poles which are located on the imaginary axis of the s-plane being or not being repeated when sigma0 (the abscissa of convergence) equals to zero. It has been pointed out that the...
A set of improved equations for dynamic feedforward neural networks is introduced to represent the behavior of the integrated circuit (IC). The rationality of the improved equations is elucidated by studying the relationship between the circuits and the equation parameters. In order to apply the dynamic feedforward neural networks to the design of intelligent IC, the method of modeling and simulation...
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