Optimal Dynamic Control for Input-Queued Switches in Heavy Traffic

Author(s):  
Yingdong Lu ◽  
Siva Theja Maguluri ◽  
Mark S. Squillante ◽  
Tonghoon Suk
1989 ◽  
Vol 15 (10) ◽  
pp. 1188-1198 ◽  
Author(s):  
Kang G. Shin ◽  
C.M. Krishna ◽  
Yann-hang Lee

2019 ◽  
Vol 28 (2) ◽  
pp. 425-440 ◽  
Author(s):  
Otwin Becker ◽  
Ulrike Leopold-Wildburger

Abstract This paper combines work to use a decision support tool for sustainable economic development, while acknowledging interdependent dynamics of population density, and interferences from outside. We get new insights derived from experimental approaches: analytical models (optimal dynamic control of predator–prey models) provide optimal dynamic strategies and interventions, depending on different objective functions. Our economic experiments are able to test the applicability of these strategies, and in how far decision-makers can learn to improve decision-making by repeated applications. We aim to analyse a sustainable environment with diametrical goals to harvest as much as possible while allowing optimal population growth. We find interesting insights from those who manage the dynamic system. With the methodology of experimental economics, the experiment at hand is developed to analyse the capability of individual persons to handle a complex system, and to find an economic, stable equilibrium in a neutral setting. We have developed a most interesting simulation model, where it will turn out that prices play a less important role than availability of the goods. This aspect could become a new important aspect in economics in general and in sustainable environments especially.


2021 ◽  
Vol 37 ◽  
pp. 373-379
Author(s):  
Linya Liu ◽  
J D Yau ◽  
Jialiang Qin ◽  
S Urushadze

Abstract An optimal control algorithm using a virtual tuned mass damper called virtual TMD to control the levitation force of a magnetic system is developed for resonance suppression of a maglev vehicle moving on multi-span guideway girders. Since the optimal dynamic parameters of a TMD in vibration control are well developed, the optimal tuning gains required to control the magnetic oscillations of the maglev bogie can be directly used and fed back to the maglev control system. To address the dynamic interaction analysis from the maglev vehicle to the guideway girders and vice versa, the entire coupling system is decomposed into two subsystems, one is the moving vehicle subsystem and another the stationary guideway subsystem. Then, an incremental–iterative procedure associated with the Newmark method is presented to solve the two sets of subsystem equations. Finally, the control effectiveness and parametric studies of the optimal virtual TMD scheme on resonance reduction of the moving maglev vehicle are demonstrated.


2015 ◽  
Vol 25 (4) ◽  
pp. 1131-1141 ◽  
Author(s):  
Vanessa M. Adams ◽  
Samantha A. Setterfield

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