The ability of acquiring and processing information in manufacturing influences agile of manufacturing system. According to the idea that networked field information processing is realized based on intelligent nodes o...
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This paper, investigates finite-time stability and finite-time boundedness for nonlinear systems with polynomial vector fields. Finite-time stability requires the states of the system to remain a given bounded set in ...
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In this paper, new Lyapunov-based reset rules are constructed to improve C2 gain performance of linear-time-invariant (LTI) systems. By using the hybrid system framework, sufficient conditions for exponential and fini...
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The problem of Hankel-norm output feedback control is solved for a class of T-S fuzzy stochastic systems. The dynamic output feedback controller design technique is proposed by employing fuzzy-basis-dependent Lyapunov...
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Safety of gyroplane is so widely accepted that a study of the stability and control characteristics is *** on the dynamic model,sliding mode control method is adopted to ensure its longitudinal ***,for traditional sli...
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ISBN:
(纸本)9781479946983
Safety of gyroplane is so widely accepted that a study of the stability and control characteristics is *** on the dynamic model,sliding mode control method is adopted to ensure its longitudinal ***,for traditional sliding mode control,the switching control term brings the chattering *** a fuzzy sliding mode control system,based on Mamdani fuzzy switching strategy,is designed to improve the longitudinal dynamic stability *** demonstrated that the proposed control method has an excellent dynamic performance and the chattering phenomena can be attenuated effectively.
The referenced quadrotor helicopter in this paper has a unique configuration. It is more complex than commonly used quadrotors because of its inaccurate parameters, unideal symmetrical structure and unknown nonlinear ...
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This paper describes a planning algorithm based on airborne for UAV to track and intercept moving target in the presence of dynamic obstacles and considering the maneuvering characteristics of the Unmanned Aerial Vehi...
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ISBN:
(纸本)9781479946983
This paper describes a planning algorithm based on airborne for UAV to track and intercept moving target in the presence of dynamic obstacles and considering the maneuvering characteristics of the Unmanned Aerial Vehicle (UAV).In the context of ensuring airborne sensor (camera) to keep track of the target,the approach can generate time-optimal speed commands for UAV in dynamic environment to intercept the target after discovering *** filtering the velocity instruction and considering the acceleration performance to generate reachable velocity *** of this method is that the coordinates of the UAV and the coordinates of moving targets and obstacles in the range of airborne sensors can be obtained in real *** simulation and experimental result show that this method can effectively ensure the moving target tracking and interception in dynamic environment.
Brushless direct current (BLDC) motor is widely used in small and medium side electric vehicles as it exhibit highest specific power and thermal efficiency compared with induction motor. The permanent magnets in the r...
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Brushless direct current (BLDC) motor is widely used in small and medium side electric vehicles as it exhibit highest specific power and thermal efficiency compared with induction motor. The permanent magnets in the rotor create a constant magnetic flux, which limit the motor top speed. As the back electromotive force (EMF) voltage increases proportionally with motor rotational speed and it approaches the amplitude of the input voltage, the phase current amplitude will reach zero. By advancing the phase current, it is possible to extend the maximum speed of the BLDC motor beyond the rated top speed. This will allow smaller BLDC motor to be used in small electric vehicles and in larger applications will allow the use of BLDC motor without the use of multispeed transmission unit for high speed operation. Adjusting the phase angle will affect the speed of the motor as the each coil is energized earlier than the corresponding rise in back emf of the coil. Preliminary test results indicated that the motor top speed can be increased at least by 40 percent over the baseline speed at no load condition.
In this paper,an improved differential search(DS)algorithm was proposed to solve the trajectory planning *** DS algorithm is a new kind of evolutionary algorithm that developes rapidly ***,slow convergence speed and e...
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In this paper,an improved differential search(DS)algorithm was proposed to solve the trajectory planning *** DS algorithm is a new kind of evolutionary algorithm that developes rapidly ***,slow convergence speed and easily trapping into local optimum of the DS algorithm are the main disadvantages that limit its further *** overcome the disadvantages of DS algorithm,we propose a quantum differential search(QDS)algorithm for solving the three dimensional trajectory planning of unmanned aerial vehicles(UAVs)in this *** is a combination of quantum theory and principles of differential search *** using the quantum strategy,the improved DS algorithm can escape the local *** non-winner particles are mutated by quantum theory and the global best position is mutated by using the small extent of disturbance according to the variance ratio of *** of experimental results demonstrate the feasibility,effectiveness and robustness of our proposed *** results show that the proposed QDS algorithm can effectively improve both the global searching ability and the speed of convergence.
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