The existing compensation designs for the ALFA adaptive optics system that is implemented on the 3.5 meter telescope at the Calar Alto observatory are presented. The ALFA system uses a modal compensation architecture....
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The existing compensation designs for the ALFA adaptive optics system that is implemented on the 3.5 meter telescope at the Calar Alto observatory are presented. The ALFA system uses a modal compensation architecture. The modal compensation design problem is highlighted and the comparative and scientific results obtained with the compensator designs are also presented.
In this paper, we propose a method to give models of complex systems for controller design by using numerical simulators. We apply this method to a two-dimensional region simulator for blast furnace and show a process...
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In this paper, we propose a method to give models of complex systems for controller design by using numerical simulators. We apply this method to a two-dimensional region simulator for blast furnace and show a process of leading a model for control. Furthermore we compare the dynamics of the model with the simulator and analyze the performance of this method.
The design and development of a Closed-Loop system to study and evaluate the performance of the Honeywell Recoverable computersystem (RCS) in electromagnetic environments (EME) is presented. The development of a Wind...
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The design and development of a Closed-Loop system to study and evaluate the performance of the Honeywell Recoverable computersystem (RCS) in electromagnetic environments (EME) is presented. The development of a Windows-based software package to handle the time-critical communication of data and commands between the RCS and flight simulation code in real-time, while meeting the stringent hard deadlines is also submitted. The performance results of the RCS and characteristics of its upset recovery scheme while exercising flight control laws under ideal conditions as well as in the presence of electromagnetic fields are also discussed.
This paper discusses simultaneous design of plant structure and a controller with two-degree-of-freedom. We propose a new criterion for a feedforward property with a concrete design procedure of controllers, which is ...
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This paper discusses simultaneous design of plant structure and a controller with two-degree-of-freedom. We propose a new criterion for a feedforward property with a concrete design procedure of controllers, which is suitable for a simultaneous design problem. Numerical example demonstrates the effectiveness of the proposed criterion. It also shows that feedforward and feedback properties are not independent in case of simultaneous design.
A genetic algorithm (GA) is adopted for an automatic collision avoidance system which has wide adaptability with learning function. The functions in which the collision avoidance controlsystem is constructed with are...
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A genetic algorithm (GA) is adopted for an automatic collision avoidance system which has wide adaptability with learning function. The functions in which the collision avoidance controlsystem is constructed with are presented. A three step experiment was performed to confirm the performance of the system.
Integrated optimum design of structure and controlsystem is expected to achieve the higher performance of various mechanical systems. Recently, a lot of efforts to develop the integrated optimization methods have bee...
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Integrated optimum design of structure and controlsystem is expected to achieve the higher performance of various mechanical systems. Recently, a lot of efforts to develop the integrated optimization methods have been tried in order to improve the dynamic characteristics of the combined structure/controlsystems. The objective of this paper is to present some concepts of the integrated optimum design in vibration control problems. Some integrated optimization problems are introduced with the applications conducted by the authors.
This paper deals with the development and construction of a state control for a solid-coupled magnetic levitation transport system. It carries a transportation vehicle with a linear homopolar motor. Both systems are s...
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This paper deals with the development and construction of a state control for a solid-coupled magnetic levitation transport system. It carries a transportation vehicle with a linear homopolar motor. Both systems are supplied by contactless energy transmission. The bearing magnet only needs a simple and cheap track for levitation and guidance. The state control enables the use of a single sided bearing magnet.
In this paper, frequency characteristics of speed controllers to suppress torsional vibrations of mechanical system are investigated. Straightforward design methods of controllers based on the frequency characteristic...
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In this paper, frequency characteristics of speed controllers to suppress torsional vibrations of mechanical system are investigated. Straightforward design methods of controllers based on the frequency characteristics are proposed. The methods are easily applicable to practical servo drive systems with inner torque control loop whose frequency bandwidth is not wide enough compared with the resonant frequencies, the second order mechanical resonant modes and so on. The validity of this methods is confirmed by computer simulations and experiments.
This paper develops a general method of controller design for the formation keeping of multiple autonomous vehicles. The purpose of the algorithm is to find controllers to keep multiple vehicles in a required formatio...
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This paper develops a general method of controller design for the formation keeping of multiple autonomous vehicles. The purpose of the algorithm is to find controllers to keep multiple vehicles in a required formation, and to coordinate the vehicles in the presence of environmental change. The stability of the closed-loop system is proved. Some useful coordination strategy such as movement with a leader, simultaneous movement, and series connections of formations are demonstrated by simulations.
In this paper, we propose a design scheme which combines a model reference adaptive control with a neural network (NN) for the electro-pneumatic servo system. In this design scheme, we adopt a multi-rate type NN in wh...
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In this paper, we propose a design scheme which combines a model reference adaptive control with a neural network (NN) for the electro-pneumatic servo system. In this design scheme, we adopt a multi-rate type NN in which an update-time of weights is selected as multiple of a sampling-time. The effectiveness of the proposed design scheme is confirmed by experiments using the existent electro-pneumatic servo system.
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