The Application of Established Automatic Control Methods to the Study of Basic Flight Problems

1946 ◽  
Vol 13 (5) ◽  
pp. 235-246
Author(s):  
ORIN B. JOHNSTON ◽  
JOHN M. ANDERSON
Keyword(s):  
Automatic Control ◽  
Control Methods

scholarly journals A survey of automatic control methods for liquid-propellant rocket engines

2019 ◽  
Vol 107 ◽  
pp. 63-84 ◽  
Author(s):  
Sergio Pérez-Roca ◽  
Julien Marzat ◽  
Hélène Piet-Lahanier ◽  
Nicolas Langlois ◽  
François Farago ◽  
...  
Keyword(s):  
Automatic Control ◽  
Rocket Engines ◽  
Control Methods ◽  
Liquid Propellant ◽  
Propellant Rocket

Series of New Local Ramp Metering Strategies: Emmanouil Smaragdis and Markos Papageorgiou

2003 ◽  
Vol 1856 (1) ◽  
pp. 74-86 ◽  
Author(s):  
Emmanouil Smaragdis ◽  
Markos Papageorgiou
Keyword(s):  
Automatic Control ◽  
Ramp Metering ◽  
Control Methods ◽  
Feedback Strategy ◽  
Macroscopic Simulation ◽  
Street Traffic ◽  
Upstream Flow ◽  
New Strategies

The local ramp metering strategy ALINEA is the only available feedback strategy that is based on powerful and robust automatic control methods. A number of modifications and extensions were proposed to address specific issues and needs not covered by ALINEA. More specifically, the following new local ramp metering strategies are presented: FL-ALINEA is a flow-based strategy, UP-ALINEA is an upstream-occupancy-based version, and UF-ALINEA is an upstream-flow-based strategy. X-ALINEA/Q is a combination of any of the preceding strategies with efficient rampqueue control to avoid interference with surface street traffic. The new local ramp metering strategies are discussed with respect to their features, their limitations, and their relation to available strategies. Macroscopic simulation investigations demonstrate the capabilities and limitations of the new strategies.

Automatic Control Methods Applied to Freeway Network Traffic

1993 ◽  
Vol 26 (2) ◽  
pp. 139-144
Author(s):  
A. Messmer ◽  
M. Papageorgiou
Keyword(s):  
Automatic Control ◽  
Network Traffic ◽  
Control Methods

scholarly journals Vision Positioning-Based Estimation Method and Its Simulation Studies on State of Underwater Manipulator

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Junli Wang ◽  
Shitong Wang ◽  
Wenhao Leng
Keyword(s):  
Automatic Control ◽  
Estimation Method ◽  
Industrial Robots ◽  
Control Methods ◽  
Positioning Error ◽  
Simulation Studies ◽  
Joint Angles ◽  
Underwater Manipulator ◽  
Vision Positioning ◽  
Work Class

Work class remote operated vehicles (ROVs) are generally equipped with underwater manipulators and are widely used in underwater intervention and maintenance tasks. As the load of underwater operation is relatively heavy, most commercial underwater manipulators are hydraulically actuated and are not equipped with any sensor for joint angles to keep their architectures compact. Therefore, the automatic control methods widely used in industrial robots cannot be simply applied to underwater manipulators. In this paper, an estimation method on joint angles of manipulator is presented, in which several markers are arranged on the arm links and positioned from the corresponding cameras; consequently, the joint angles of the manipulator are estimated. The simulation results show that under typical optical vision positioning error (RMS: 5 mm), the positioning error of the end effector can be estimated as about 10 mm (RMS), which means that the proposed estimation method is feasible for the state estimation for automatic control of underwater manipulators.

Automatic control methods applied to freeway network traffic

Automatica ◽  
1994 ◽  
Vol 30 (4) ◽  
pp. 691-702 ◽  
Author(s):  
Albert Messmer ◽  
Markos Papageorgiou
Keyword(s):  
Automatic Control ◽  
Network Traffic ◽  
Control Methods

Design of Heavy-Medium Coal Separation Automatic Control System Based on S7-300 PLC

2013 ◽  
Vol 313-314 ◽  
pp. 391-394
Author(s):  
Chang Yong Zhang ◽  
Zhong Jing Zhou
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
System Control ◽  
Coal Preparation ◽  
Control Methods ◽  
Heavy Medium ◽  
Testing Instruments

This paper focuses on the composition of the Heavy-medium coal separation automatic control system, control methods and its functions. Introduced the main testing instruments and actuator in the control system. The system achieved good results in the Tangshan Rongyi Coal Preparation Company.

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