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This paper systematically investigates the characteristics of different output metrics for a weakly coupled three degree-of-freedom microelectromechanical systems resonant sensor. The key figures-of-merit examined are sensitivity and linear range. The four main output metrics investigated are mode frequency shift, amplitude difference, amplitude ratio, and eigenstate shift. It is shown from theoretical...
An adaptive fuzzy controller is developed to meet the function requirements of autopilot simulator system on the track-keeping. This controller is composed of Sugeno fuzzy type controller in an ordinary feedback loop and adjustable scaling factors mechanism in an additional feedback loop. The key of the adjustment mechanism is a fuzzy controller that changes scaling factors of the Sugeno fuzzy type...
This paper addresses the problem of robust L2-L∞ Filtering for a class of nonlinear uncertain stochastic time delay systems. Attention is focused on the design of a stochastic L2-L∞ filter that ensuring both the asymptotic mean-square stability and a prescribed L2-L∞ performance level of the filtering error system. A full-order filter is designed based on the linear matrix inequality. Sufficient conditions...
This paper models simplified transformer winding model by multi-conductor transmission line (MTL) model. Because inductance and resistance of transformer winding are frequency-dependent parameters, frequency effect on parameters should be considered when calculating distributed parameter matrices. Then, when solving for voltage distribution of winding model, the distributed parameter matrices should...
This paper uses multi-conductor transmission line (MTL) to model transformer winding. Firstly, distributed parameters should be computed. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution...
Grassland fire is a serious and common disaster in Inner Mongolia, China and it is a kind of extremely complex natural phenomena influenced by various factors. The design aims to simulate the fire trend based on GIS and scientific grassland fire spread model and finally provides assistant decisions. The system will be used in Inner Mongolia Emergency Response Platform.
This paper uses multi-conductor transmission line (MTL) to model transformer winding. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution at single frequency excitation is calculated...
The reconnection electromagnetic launcher utilizes the interaction between the projectile eddy current and the coil magnetic field to accelerate the projectile. A reconnection launch experimental system using the box-shaped helical coils and the flat-plate projectile has been fabricated. Capacitor banks are used as the power supplies. The inductance gradient curve-fitting is performed on the basis...
Inductance gradient has great influence on the performance of railgun. This paper deduced armaturepsilas force formulation, explained inductance gradientpsilas physical meaning, introduced the governing equation of 2-D time harmonic electromagnetic field, built railgunpsilas 2-D finite element model; a common structure railgunpsilas inductance gradient is calculated. The influence of time harmonic...
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