This paper deals with the problem of semiactive vibration control of civil engineering structures subject to unknown external disturbances (for example, earthquakes, winds, etc.). Two kinds of semiactive controllers a...
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ISBN:
(纸本)9780780397958
This paper deals with the problem of semiactive vibration control of civil engineering structures subject to unknown external disturbances (for example, earthquakes, winds, etc.). Two kinds of semiactive controllers are proposed based on the backstepping control technique. The experimental setup used is a 6-story test structure equipped with shear-mode semiactive magnetorheological dampers being installed in the Washington University Structural Control and Earthquake engineering Laboratory (WUSCEEL). The experimental results obtained have verified the effectiveness of the proposed control algorithms.
This paper deals with the problem of semiactive vibration control of civil engineering structures subject to unknown external disturbances (for example, earthquakes, winds, etc.). Two kinds of semiactive controllers a...
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The paper summarizes knowledge acquired from analysis of automatic control of municipal solid waste incinerator plant during the reduction of nitrogen oxides (NOx). On the base of theoretical analysis and practical me...
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ISBN:
(纸本)8086059456
The paper summarizes knowledge acquired from analysis of automatic control of municipal solid waste incinerator plant during the reduction of nitrogen oxides (NOx). On the base of theoretical analysis and practical measurement it was derived that the standard control concept is not suitable. The reason is a lacking influence of ammonia during reduction of nitrogen oxides and this non-linearity of plant is contradicted for utilization of integral component in controller's transfer function.
Underwater vehicles are highly nonlinear and complex systems, that makes designing autopilots extremely difficult. This paper presents autotuning as a method for tuning parameters of a micro-ROV autopilot. The main be...
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Underwater vehicles are highly nonlinear and complex systems, that makes designing autopilots extremely difficult. This paper presents autotuning as a method for tuning parameters of a micro-ROV autopilot. The main benefit of this procedure is that the model of the process does not have to be known. Autotuning is often used for industrial processes but not on marine vessels. This procedure, which is performed in closed-loop, is completely automated and enables the operator to retune an autopilot whenever ROV performance is degraded (due to different operating points, tether influence, currents, etc.). In this article we use already known different autotuning recommendations (primarily designed for type 0 processes) with some modifications which we recommend for micro-ROVs. We also give results of using different types of PID controllers, whose parameters are being tuned. A real life demonstration on a VideoRay Pro II micro-ROV is provided
Modern complex system design demands modeling on a high level of abstraction together with the system environment components. Such model enables mission level system simulation in the context of its operational condit...
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Modern complex system design demands modeling on a high level of abstraction together with the system environment components. Such model enables mission level system simulation in the context of its operational conditions. A mission level design language providing mission and system level verification is presented in this paper. Also, this language enables designers to describe some of the components at implementation level to test and validate the system implementation at mission level. In this way a uniform design framework is achieved from mission/system down to implementation level
A new robust adaptive control design synthesis, which employs both high-order neural networks and math-analytical results, for a class of complex nonlinear mechatronic systems possessing similarity property has been d...
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Aimed at cleaning the curved glass wall of Shanghai science and Technology Museum, a fully pneumatic climbing robot is presented to meet the requirements of cleaning efficiency and simple operation. After an overview ...
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Aimed at cleaning the curved glass wall of Shanghai science and Technology Museum, a fully pneumatic climbing robot is presented to meet the requirements of cleaning efficiency and simple operation. After an overview of the robotic system, this paper emphasizes the software hierarchy realization and path planning evaluation. The hierarchy of the control function is studied in detail, which consists of path planning and task planning. Then a mathematic model is proposed to describe the features of the work target. Considering the movement security, cleaning efficiency and the percentage of cleaning coverage, a new approach to path planning for wall-cleaning robots is presented. In the end, the successful on-site test confirms the principles described above and the robot's ability
The goal to control the dynamics of high-rise buildings either to ameliorate the damage or prevent their destruction when subject to an earthquake excitation has been subject of extensive research. All known control d...
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A control scheme for highway tunnels is designed based on a static model of a highway tunnel. The controller is designed to keep the exhaust levels inside the tunnel below given limits. During operation, the model is ...
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A control scheme for highway tunnels is designed based on a static model of a highway tunnel. The controller is designed to keep the exhaust levels inside the tunnel below given limits. During operation, the model is ...
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ISBN:
(纸本)1424401704;9781424401703
A control scheme for highway tunnels is designed based on a static model of a highway tunnel. The controller is designed to keep the exhaust levels inside the tunnel below given limits. During operation, the model is being modified by adaptation. The control itself is achieved by linear programming. Finally, an example of the control is given
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